Udemy CompTIA Practice Exams 901 (Missed answers are dashed) & some other sites

When choosing a home theater computer, what are the BEST features to include? (Select TWO). - Digital audio - Extensive cooling - VGA Output - NFC - Max RAM - HDMI Output

(Correct) - Digital audio (Correct) - HDMI Output

A new company is upgrading a media workstation. The computer will be predominantly used for graphic intensive presentations, slideshows, and video gaming tournaments on a large presentation screen. Which of the following BEST satisfies the needs of the company? - High-end video, high-end audio, multicore processor - RAM, networking and high-end audio - Gigabit networking connectivities, TV Tuner - network, connectivity and surround sound audio

(Correct) - High-end video, high-end audio, multicore processor

How much data will a high density (HD) floppy disk hold? - 124KB - 640KB - 720KB - 1.44MB - 2.88MB

- 1.44MB (High density!? I thought this was the standard! 2.88 MB was made, but is not called high-density and is rarely if ever used.)

What is the maximum range of the Bluetooth 2.0 specification for Class 1 devices? 50 M 10 M 30 M 300 M 100 M

- 100 M (Holy crap-amoly!) Bluetooth version 2.0 class 1 devices have a maximum range of about 100 meters. Earlier versions had a maximum range of only about 10 meters.

What port does e-mail traditionally use to receive mail? - 110 - 143 - 443 - 80

- 110. The POP3 protocol uses port 110.Incorrect Answers:Port 80 is used by the HTTP protocol.Port 143 is used by the IMAP protocol, which also receives e-mail, but is less commonly used than POP3. (...so this is a scary one. Port 143 is a very close, almost-acceptable answer.) Port 443 is used by the HTTPS protocol.

Wotf is a legal class B IP address? 47.19.117.80 126.23.99.81 127.24.98.82 128.17.29.62

- 128.17.29.62 Remember, you can tell the Class of network address by looking at the first octet of the IP address.

Which IRQ does the hard disk controller commonly use? - 0 - 1 - 4 - 13 - 14

- 14 (After all the other ones belonged to system timer, keyboard, and...COM1 port respectively, I guessed 13.)

What wireless standard can operate at speeds of up to 150 Mbps? - 802.11a - 802.11b - 802.11g - 802.11n

- 802.11n (Really? I thought it was 300 Mbps, so I chose g.) 802.11 n has a maximum speed of up to 600 Mbps. :802.11 a and g have a maximum speed of 54 Mbps.802.11 b has a maximum speed of up to 11 Mbps. (Ok, so this is some BS wording. It's even higher than I thought, at 600. But still asks for which standard can have speeds up to 150 Mbps, but 802.11n vastly outshines the rest of the choices)

What is different between AT and ATX power supplies? - AT supplies use a single P1 power connector while ATX uses P8 and P9. - AT supplies use P8 and P9 power connectors while ATX uses a single P1 connector. - AT power supplies run on 120V AC current while ATX uses 220V AC - They are identical except for their shape.

- AT supplies use P8 and P9 power connectors while ATX uses a single P1 connector. (No wonder the P8 and P9 question threw me off. This is borderline legacy tech if the ATX standard was developed in the mid-90's. No explanations given for the wrong answers.)

You have a PC with a single IDE interface. The PC presently has an IDE HDD and a CDR. You need to install an additional HDD. Wotf do you do? Install an IDE cable with an additional connector. Make the CDR a slave and install a second hard drive on the same cable. This can't be done. Add an IDE interface expansion card.

- Add an IDE interface expansion card. (An IDE cable only supports 2 devices; installing an additional connector is futile.) A single IDE interface is only capable of supporting two drives. To install a third device use an expansion card to provide a second IDE interface.

A user who returns from vacation complains that his battery is draining quickly since his vacation. During the vacation he installed a new app that uses the GPS function on his mobile device. Which of the following will MOST likely resolve the issue without a loss of data? - Adjust location settings - Reboot the mobile device - See if the app has an update available - Uninstall the GPS-enabled app

- Adjust the local settings Adjust the local settings. Some GPS apps use location reporting or location history. These items can be turned off without causing a loss of data, and will help maximize your battery life.Incorrect Answers:Rebooting the mobile device will not turn off the setting that is causing the drain.An app update will not turn off the setting that is causing the drain. Uninstalling the GPS enabled app will stop the drain, but it could cause a loss of data.

Which class of IP addresses uses the first 2 octets to represent the NW address and the last 2 to represent the host address? A B C D

- B Class A - The first octet of the IP address is used for the network portion, and the last three octets are used for the host portion. Class B - The first two octets of the IP address are used for the network portion, and the last two octets are used for the host portion. Class C - The first three octets of the IP address are used for the network portion, and the last octet is used for the host portion.

Where would a technician enable USB 1.1 support? AGP BIOS HCL MBR

- BIOS You would enable this feature in BIOS.Incorrect Answers:The MBR contains information about how a hard drive is formatted.An HCL, or hardware compatibility list, is a list of hardware that works with a particular operating system.AGP was the standard expansion port for video cards before PCIe came out.

Which of the following components is an example of firmware? - EEPROM - RAM - BIOS/UEFI - Cache

- BIOS/UEFI The basic input/output system (BIOS) and unified extensible firmware interface (UEFI) are examples of firmware. BIOS/UEFI is a software program that is stored on a non-volatile, removable, or erasable semiconductor chip. Cache is an area of memory that holds recently-accessed data. Random Access Memory (RAM) is a temporary data storage location that can be read from and written to. Cache and RAM are all examples of volatile memory. Data is lost when power is no longer supplied to the component. EEPROM is a type of read-only, non-volatile memory used in computers and other electronic devices to store relatively small amounts of data. (Of course! UEFI HAS FIRMWARE IN THE TITLE!)

What happens when a second SATA 3.0 drive is added to a SATA controller that already contains a SATA 1.5 drive? Both devices will operate normally. It cannot be added. Errors occur on the faster device. Bus speed reduces to 1.5.

- Both devices will operate normally. (The cable is what only connects one device to the MOBO at a time and the only limit to SATA is the limitation of the MOBO.) SATA specifications and hardware permit only one device on each SATA cable. Each drive receives its own cable to the interface of the computer. Multiple cable connections are available on the SATA controller for expansion. The speed difference between the devices will not cause a problem.

A technician is connecting a PoE enabled phone and needs to run the drop from the switch that is 55 meters (180.4 feet) away. Which of the following cable types would be the MOST suitable for this purpose? CAT3 CAT6 Coaxial Fiber

- CAT6 PoE phones use an ethernet connection to provide telephone service. CAT5e/6 is the normal cabling used for PoE.:Fiber optic cable is not used for PoE phones.Coaxial cable is not used for PoE phones.Although CAT 3 cable can support power over ethernet, it does not provide the the required bandwidth for PoE phones.

Where do you configure things like basic boot priorities, voltage parameters for the processor, and SATA options in a PC system? BIOS CMOS MBR VRAM

- CMOS My guess was BIOS. CMOS setup enables you to change BIOS settings, such as CPU voltage, SATA options, and boot priorities.Incorrect Answers:MBR stands for master boot record, which contains partition information for a drive.VRAM was a type of memory used in old graphics cards.BIOS contains instructions about how the computer boots and how the hardware interacts with the software.

Police commisioner Gordan has noticed a rash of laptop thefts throughout Gotham city. What can he recommend to Gotham's citizens as the most effective way to prevent laptop theft? - A badge reader - A cable lock - A CCTV system - Retinal scanner

- Cable lock A cable lock will stymie all but the most dedicated thieves.Incorrect Answers:CCTV doesn't prevent theft so much as make it easier to find the thieves.Badge readers and retina scanners won't stop someone from picking up your laptop and walking off with it.

Jim, a user, states that his inkjet printer is not printing as clearly as when he first purchased it. What should you do first to rectify this issue? - Calibrate the printer - Replace the ink cartridges - Replace the USB cable - Use a different type of paper

- Calibrate the printer (What the wtf to not replacing ink cartridges?!?) Looks like the ink may have dry up a little and you need to run the maintenance tool. Often times calibrating the printer will include running a printer head cleaning utility. (Oh, calibrating is a way of self-cleaning. Okay, I see dis bull):It may come to replacing the ink cartridges, but don't get too eager. Those bad boys are expensive, after all! Try doing that last if possible.Using a different type of paper might help if you are using a some strange type of paper. Unfortunately, in this scenario, we don't have any idea what kind of paper Jim is using. Initially, assume he is using the right kind. Regardless, it definitely wouldn't be my FIRST step.Replacing the USB cable would be a good idea if we were having connectivity issues with the printer itself. This, however, is a performance issue with the printer. Besides, based on this scenario, we have no clue what kind of connectivity is being used. Granted, it probably IS using USB, but it could also being using Wi-Fi, Ethernet, or even a parallel connection.

A customer wants to transfer data from the DVR to a DVD. What hardware will be required to enable the workstation to collect the data to archive to the DVD? Capture card Optical drive Thunderbolt USB 3.0 external storage

- Capture card A capture card acts as a receiver for data that is input to a system. It enables you to record the video that is playing on your system from an external video source. They are commonly used to to collect the video signals in gaming or other common video devices such as a DVD or camcorder.:An optical drive can read and write data, but cannot collect the DVR data.A USB external storage drive can read and write data, but cannot collect the DVR data.Thunderbolt technology is a high speed connection for display devices, but it does not collect data.

A user reports that they are unable to access their Firewire drive after moving the PC from beneath the desk to the top of the desk. What is the most likely cause of this problem? IRQ conflict An external power source must be added. Incorrect FireWire driver Card is not properly seated

- Card is not properly seated (Hunh. I would have guessed that they forgot to plug in their power source, first. Then again, not all FireWire devices use external power.) In moving the computer, it is likely that the card became jostled and is no longer properly seated in the expansion slots. None of the other options would have been affected in just moving the computer. FireWire does not use IRQs for configuration. Simply moving the computer such a short distance would not require adding an external power supply if it wasn't needed before. Moving the computer does not change drivers used for devices.

This policy would make it easier for employees to plan the implementation of new procedures. Classification of information policy. Categorization of information policy. Change management policy. Tiered information policy.

- Change management policy. (Seems like a very H.R type of question.) An effective change management policy will include provisions for the planning and implementation of new procedures.

If a technician has just replaced a laptop's motherboard due to video issues, what should he do first if the speakers stop working? - Check the speakers' connection to the MOBO - Replace the speakers - Update video drivers - Verify that the speakers are compatible with the replacement MOBO

- Check the speakers' connection to the MOBO. It's very likely that the speakers simply didn't get hooked up correctly. :Don't replace the speakers before making sure that they're hooked up properly. Due to the way laptop hardware works, the replacement motherboard is probably the exact same as the old motherboard.

A user reports that he cleared a paper jam and now cannot print. The technician reseats the paper and then prints a test page from the printer. A test page sent from the workstation does not print. Which of the following actions should the technician take first? - Check the printer connection - Clear the print queue - Reboot the PC - Stop and start the printer

- Clear the print queue It's possible that the print queue is backed up, so clearing it might help things get moving again.:It's possible that the printer's connection has come loose, but if the printer hasn't been moved recently, it's probably a better idea to simply clear the print queue.Rebooting the computer might work, but only because it would clear the print queue. Clearing it manually might be the quicker option.Restarting the printer most likely won't do anything. Do it as a last resort.

A mobile phone is responding slowly and erratically for a user. The user has tried a soft reset on the device, but the phone continues to respond slowly. Which of the following is the BEST step the user can take to fix this problem? - Change power settings - Close apps that are unused - Reset to factory default - Turn off location services

- Close apps that are unused Close the unused apps is the best answer. Many people do not realize that the amount of applications that are running in the background on your mobile device.: Power settings will not assist, they are designed to help the battery life of a device.Resetting the tablet may fix the problem, however, you will lose all your data. This problem does not require drastic measures.Turning off location services will not assist. It may help your battery, but it would not affect your response time.

I have just upgraded the 802.11b wireless access point in the home with an 802.11n one. I also upgrade your wireless laptop card with an 802.11n one. Everything works fine. I decide to test the new setup by taking the laptop out to the pool area. My connection speed seems sluggish. When I check the status, it indicates a Fair connection and a speed of only 11 Mbps. I was expecting the 54 Mbps speed I had indoors. Problem? Connection speed decreased as the signal quality is reduced. The Access Point is set to g only mode. The Access Point is set to b only mode. An 802.11b device will slow the entire network. The 802.11g device needs to be set to High range.

- Connection speed decreased as the signal quality is reduced. (NVM the fact that 802.11n is NOT 54 MBPS!!! 150 Mbps in good conditions) As signal quality reduces, devices have a higher error rate in their communications. Speeds are reduced as a result.

What does FDISK do? - Recovers lost clusters on the HDD - Performs low-level formatting of the HDD - Fixes bad sectors on the HDD - Creates partitions on the HDD

- Creates partitions on the HDD (Bad sectors are physically damaged, and aren't fixable. Low-level formatting is already done when a drive is received from the manufacturer. (So what if WE are the ones remanufacturing it?) And defragmenting is what recovers lost clusters.)

Which of the following is the best tool to make sure a network cable is securely fastened in an RJ-45 connector? - Cable tester - Crimper - Punch down - Small flat screwdriver

- Crimper A crimper attaches RJ-45 plugs to the ends of an Ethernet cable.Incorrect Answers:A cable tester will ensure that you've crimped a cable properly, but you can't crimp cable with one.

If you want to utilize your motherboard's dual-channel RAM feature, what type of RAM do you need to use? - DDR - RAMBUS - RDRAM - SDRAM

- DDR. It's the only type of RAM to support dual-channel. None of the others have dual-channel support, and they're all outdated, so I probably won't see them anywhere.

A customer calls and states the new plasma display he just received has tiny yellow spots all over the screen. Which of the following is the most likely cause of this issue? - Dead pixels - Dropped in shipping - Incorrect installation - Using wrong video connector

- Dead pixels (Wouldn't they be black? This must be how it manifests on a plasma display.) Dead pixels show up on a monitor as tiny, unchanging discolored spots. :Using the wrong video connector would simply prevent any image from being displayed.A dropped monitor tends to look like a dropped piece of glass.An incorrect monitor installation would result in no video.

A user states that when she power on her computer, she receives a "Non-bootable drive" error. The user works with external storage devices to transport data to her computer. The user stated that the computer worked fine the day before. Which of the following should be checked first to resolve this issue? Device boot order Hard drive cable Jumper settings PXE boot settings

- Device boot order It seems like the computer is trying to boot to the external drive instead of the system drive, so the user needs to set her boot order to prioritize the system drive above every other device.:A jumper issue would show up immediately after installing a drive, not suddenly at random.The user doesn't seem to be using the PXE to install Windows remotely, so changing the PXE settings wouldn't help.Again, a hard drive cable error would show up after installing a drive.

Which of the following are improvements over BIOS that are provided by UEFI? (3) Does not need to be flashed as frequently Provides non-volatile storage of system startup information Allows individual bytes to be erased and reprogrammed Supports 64-bit firmware device drivers Faster startup times Supports drives larger than 2.2 TB

- Faster startup times Supports drive larger than 2.2 TB Supports 64-bit firmware device drivers Provides better security to protect against bootkit (malware attacks on the boot process) attacks. (This last one isn't on the list of options for the question.) Similar to BIOS, UEFI does need to be flashed when updates are available to make new features available on the computer. EEPROM is the technology that provides non-volatile memory and allows individual bytes to be erased and reprogrammed.

What type of device should be placed in a DMZ? Backup server Gaming server Smartphone Wireless printer

- Gaming server DMZ=de-militarized zone. This is right outside a company's firewall and is a lightly protected ?subnet? that serves the public. When setting up a gaming server, it's important to make it as easy as possible for others to connect. Putting the server in a DMZ does this.:A backup server contains private information, so you want it as protected as possible.A smartphone also contains private information, so you don't want it Internet accessible. You don't want anyone from the Internet using your wireless printer! Don't put it in a DMZ. (De-Militarized zone)

What type of printers use voltage control to limit the amount of liquid they use? - Impace printers - Inkjet printers - Laser printers - Thermal printers

- Inkjet printers. (So obvious! I remember beginning to doze off during this part of the test. No wonder I missed the LIQUID part of the Q.) Inkjet printers apply voltage to an electrically-sensitve material (or, in older printers, a heating element) to control the amount of ink sprayed onto the page.:None of the other printers use liquid media.

What would you need to upgrade an onboard NIC so that you can connect to a gigabit network? Convert the user to wireless Flash the BIOS to unlock the Ethernet port Install a 10/100/1000 NIC Update the drivers for the onboard port

- Install a 10/100/1000 NIC To connect to a faster network, it's highly likely that you'll have to install a faster NIC.There's not much else you can do about it.:There is currently no wireless standard that can reach gigabit speeds.Updating drivers won't enable the NIC to connect to a faster network.Flashing the BIOS to unlock the Ethernet port is a nonsense answer.

What must you do when installing a PCIe sound card? - Configure the jumpers - Flash the BIOS - Install additional memory - Install drivers

- Install drivers As with any new hardware install, you've got to install drivers for your device before you can use it. You don't need to install any more RAM, configure any jumpers, or flash the BIOS to install a simple sound card. Talk about overkill.

Which of the following are characteristics of the ExpressCard /54 form factor. (2) 34mm wide at the connector 54mm wide at the connector 68-pin connector L shape Rectangular shape

- L Shape - 34mm wide at the connector end. (WIDE!) ExpressCard /54 are L shaped cards that are 34mm wide at the connector end, but 54mm wide on the outside edge. ExpressCard /34 are rectangular cards that are 34mm wide. Older PC Cards used a 68-pin connector.

What are the most important features when shopping for a CAD workstation (3)? - Large drive space allocation - Multiple large HD monitors - Multiple NW cards - Powerful sound card - Powerful video card

- Large drive space allocation Multiple large HD monitors Powerful video card CAD workstations need large hard drives for the complex CAD files they work with, multiple monitors to give the users more space to work, and a powerful video card to render the CAD files.:CAD workstations definitely don't need a powerful sound card, and they can certainly get by without multiple network cards, too.

In which of the following printers would you have to replace toner as part of printer maintenance? - Impact - Inkjet - Laser - Thermal

- Laser printers Laser printers use toner to create an image on the paper.:Inkjet printers use ink.Thermal printers use a special type of heat-sensitive paper to create images.Impact printers physically strike the paper to leave a mark.

Danerys needs high-powered but perfectly quiet cooling for a HTPC she's building. What's her best option? Additional fans Liquid-based Side panel slots Thermal paste

- Liquid-based Liquid cooling is both powerful and quiet. Perfect for a home theater PC!Incorrect Answers:Side panel slots help with cooling, but they're definitely not a complete solution. Fans are a bad choice for a home theater environment, since they can create distracting noise.Thermal paste is necessary for cooling, but you can't cool a PC with just thermal paste.

What is one security function of a firewall? Allows people on the Internet to see just one IP address. Does not allow any connections to the server. Restricts unauthorized users from accessing sensitive data. Manages password functions.

- Manages password functions. (How is choice 3: 'Restricts unauthorized users from accessing sensitive data.' NOT VALID?? This site sucks.) At the most basic level, firewalls block traffic intended for particular IP addresses or server ports and they can do much more. However of the choices presented the management of password functions is the most relevant.

You want to build a computer that can stand upright on a desk and takes up the least amount of space possible. Which case type should you select? HTPC Micro-ATX slim tower ATX mid-tower Mini-ITX tower

- Micro-ATX slim tower An ATX mid-tower case would take up a considerable amount of space on a desk and are not designed to be small. While Mini-ITX towers can sit on desks, they take up more space than a Micro-ATX slim tower (*curses*) that is designed to stand upright. HTPC cases are design to be used with TVs and home theatre systems.

Which of the following characteristics accurately describe passive heat sinks? Used on high-end video card More reliable than active heat sinks Used by liquid-based cooling systems More efficient than active heat sinks

- More reliable than active heat sinks (I guess! reliable/efficient, I gotta think about that.) Passive heat sinks do not have a fan and instead rely on increased surface area and passive air movement to cool the component. Because they do not use a fan, passive heat sinks are 100 percent reliable. Passive heat sinks are used with the following components: Most motherboard chipsets Low-end video cards Memory modules (heat sinks on memory modules are also called heat spreaders) Active heat sinks use a fan and are able to cool components much faster and more efficiently than passive heat sinks. Liquid-based cooling systems use cooling plates and thermal liquid to dissipate heat from components.

An iOS tablet user needs more storage. What external storage devices are available in this case? eSATA drive Nothing SD card Thumb drive

- Nothing. (I had high hopes for SD cards.) Currently, iOS tablets have no ability to add external storage.Incorrect Answers:There are no SD card, USB, or eSATA ports on iOS tablets.

A Windows user states that every time she hits certain letter keys on her notebook, a number appears instead of the letter. Which of the following items is most likely the cause of this problem? - The user changed the keyboard set - The user enabled accessibility options - The user enabled num lock - The user enabled sticky keys

- Num lock. The num lock key on a laptop turns part of the keyboard into a number pad, like you'd find on a desktop keyboard. Sticky keys is an accessibility feature for people who can't press more than one key at a time.Changing they keyboard character set wouldn't cause this problem.

Which of the following expansion buses is most commonly used for devices such as sound cards, modems, and network cards? VESA Local Bus ISA PCI AGP

- PCI The AGP and VESA expansion buses are most commonly used for video. ISA buses were used to connect peripheral cards to the motherboard, but are considered a legacy device and are no longer available in newer systems. (asked again in Quiz 5 GoCertify.)

Of the following types of expansion slots, which is MOST commonly found in a blade server? - miniPCI - PCI - PCIe - PCI-X

- PCIe (Never heard of a blade server. This one's new. Sounds like it would take miniPCIe. Guess not.) Modern blade servers most commonly use PCIe expansion slots.:PCI-X is an older technology that is no longer the standard in servers.PCI is an older technology that is no longer the standard in computers.

Which statement is true concerning how external conditions affect a wireless link's range? The higher the frequency, the farther the signal travels. An omnidirectional antenna increases a signal's range. Packet error rates increase on the signal's fringe. A dish antenna reduces the signal's range.

- Packet error rates increase on the signal's fringe. (How did I miss this one?) A noisy or unstable environment can cause the range of a wireless LAN link to be decreased. The packet error rate of an RF link is greater at the fringes of coverage due to a small signal-to-noise ratio. Also, adding interference effectively raises the noise floor, lessening the likelihood of maintaining a solid link.

What is likely to be reset during standard printer maintenance? - Job queue - Page count - Paper and tray settings - Print job cache

- Paper and tray settings. Printer maintenance might have the effect of resetting the printer's paper and tray settings.Incorrect Answers: None of the other answers are reset by standard printer maintenance. (Effing seriously? I suppose that's all manually reset, like the page count, which was my guess.)

Which of the following thermal solutions might you find on memory modules? Active heat sink Surface area dissipation Liquid cooling Passive heat sink

- Passive heat sinks. (Weird. Must be on very few memory modules.) Surface area dissipation is a generic term for cooling used by both active and passive cooling systems. Active heat sinks are used by components that generate more heat, such as CPUs, high-end video cards, and some motherboard chipsets with integrated graphics. Liquid cooling systems are used when air cooling is not sufficient. Liquid-based cooling systems are composed of tubes, cooling plates, a reservoir, and a radiator; they are primarily used for high-end gaming computers and high-performance systems.

A client has an issue with large files taking a long time to open or save. As time goes by, the issue worsens. The client has hundreds of GBs of files that are still in the process of backing up. The technician has verified that the hard drive is healthy and there are no signs of failure. Which of the following troubleshooting steps should the technician perform NEXT? Perform a chkdsk on the HDD Perform a scan of the HDD for disk fragmentation Reformat the drive with NTFS and reinstall the system software Update the MOBO drivers

- Perform a scan of the HDD for disk fragmentation Disk fragmentation happens to a hard drive over time as you save, change, or delete files. Disk defragmentation is the process of consolidating fragmented data on a hard drive, so it will work more efficiently.:Motherboard drivers will not allow your files to save and open faster. Drivers allow your devices to communicate.Chkdsk scans and repairs hard drives for file system errors. It can help in data loss, but not file access speed.Reformatting the drive may help, but is destructive to the system and unnecessary.

What is the correct term to describe a USB device that allows the connection of keyboards, monitors, and printers to a laptop? Docking station Accessory Port USB Hub Port Replicator

- Port Replicator (I suppose USB Hub IS a Port Replicator?) A port replicator is typically a USB device that allows peripheral connections. A Docking Station allows these connections but it uses a proprietary interface customized to the given laptop. (Just Googled it. These are nice. HP seems to make the most.)

A user wants to change what happens when a laptop's lid is closed. Which of the following Control Panel applets is the most direct way to adjust this? - Device Manager - Display - Personalization - Power options

- Power options The Power Options applet controls what happens when a laptop's lid is closed.Incorrect Answers:The Display applet controlled things like screen resolution, color depth, and desktop wallpaper in pre-Vista Windows. The Personalization applet has replaced the Display applet's wallpaper and screen saver functionality.

For any given 802.11n wireless Internet signal, which of the following is needed to establish a connection? - MAC address filtering - Proper SSID - SSL certificate - Windows password

- Proper SSID Isn't this true of any connection? How did I miss this one? I must have leaned over for whatever seems most relevant to a more advanced N connection. Classic red herring. To join a wireless network, you must have the proper SSID. Otherwise, you'll join the wrong network!:MAC filtering keeps unwanted computers off your wireless network.A Windows password won't help you join a wireless network.A SSL certificate is used in encrypting Web pages.

A technician installed a second hard drive in a computer. Upon restart, a message appears stating, "Primary drive 0 not found. Press F1 to continue." Which of the following should the technician check first? If the PC can boot into Safe Mode If the BIOS boot settings are correct Proper drive installation (e.g. cables/jumpers) That NTLDR and boot.ini are not missing

- Proper drive installation (e.g. cables/jumpers) Error messages after a drive installation is a good sign that you might have installed the drive improperly.:A newly-installed drive wouldn't have NTLDR or boot.ini on it.A computer that can't find its hard drive won't be able to boot into Safe Mode. If everything's installed properly, then you'd check the boot settings in BIOS. But not first.

Wotf is NOT a type of RAM? - DIMM - SIMM - ROM - SLIPP

- ROM (SIMM stands for Single In-line Memory Module. SLIPP isn't really a thing anymore; Older PC's used SIP (Single Inline Pin) though.)

Which of the following actions is NOT recommended for keeping your computer cool? Add a liquid cooling system. Add heat sinks to memory, video, and chipset components. Use rounded cables. Keep internal components clean. Remove unused expansion card slot covers

- Remove unused expansion card slot covers (Yes, but rounded cables sounds so far out there, that that was my guess. Aren't they ALL 'rounded'??) Do not remove unused expansion slot covers from a system case. The system case is a pressurized system, with carefully designed airflow that directs outside air across components and then out of the case. When you remove the system cover or expansion card covers, you modify the airflow path, which typically reduces the cooling effectiveness of the system fans.

The technician is dispatched to look at a user's laptop. The user reports the system shuts down after 30 minutes of field use. The technician notices the battery is not fully charging. Which of the following should the technician perform to resolve this? Change the power setting on the laptop to use less power Discharge the battery using a static mat Remove the battery and connect it to a commercial battery charger Replace the battery

- Replace the battery The first thing to do in this case is to replace the problem battery with another one to see if that battery starts charging.Incorrect Answers:It's far easier and more helpful to test a new battery than to use a commercial charger.Putting a battery on an anti-static mat won't actually discharge it.Changing the power settings just delays fixing the problem.

A technician is troubleshooting a RAID 6 array on a high-end CAD/CAM workstation. Two disk drives have their fault lights on. Which of the following is the best action for the technician to perform when fixing the problem? - Replace the failed drives and restore the data from a known good backup - Replace the failed drives and verify the RAID rebuilds completely - Reseat the drives and monitor the RAID status over a few days - Reseat the drives, back up the data, and then replace them.

- Replace the failed drives and verify the RAID rebuilds completely. (Curses. I would have reseated the drives, backed up the data and then replaced them. But that answer doesn't specify verifying the RAID rebuilds, which is the important thing.) Two drives have failed, but you can still rebuild the RAID 6 array. Replace the drives and make absoultely sure that the rebuild completes successfully.:If the fault lights are on, then it's probable that the drives have failed, so reseating them won't help. It's in your best interest to get those drives replaced as soon as possible.If you replace the drives, the RAID will rebuild the data automatically.

A customer reports that the fan in her PSU on her PC stopped working, but the PC still works fine. What would be the proper repair procedure in this situation? Replace the fan. Replace the transformer. Lubricate the fan with oil. Replace the power supply.

- Replace the power supply. (Don't even think about trying to save the PS by just replacing the fan.) When a power supply malfunctions, it should be replaced. We should not try to replace parts of it, or try to repair it.

What is the role of the CMOS in a modern computer? - Loads the operating system into memory. - Saves information about system devices. - Coordinates the use of system hardware with the operating system. - Tests hardware during system startup.

- Saves information about system devices. The CMOS saves information about system devices. The BIOS tests hardware during system startup, coordinates the use of system hardware with the operating system, and loads the operating system into memory (This last one was my guess. Was.)

After installing a new multifunctional printer, an administrator realizes the flatbed scanner does not scan any documents. Which of the following is the most likely reason of the issue? - The multifunction printer's USB cable was plugged into the incorrect port - Printer driver was installed incorrectly - The scanner lock switch on the device is locked - The scanner's alignment and calibration was not performed

- Scanner lock switch was set to the 'locked' position

A user is installing Windows 7 on a PC with a RAID card. The user has verified all of the cables are connected correctly, but the installation media does not detect any hard drives. Which of the following should the user do to help detect the hard drives? - Enable PATA in the BIOS - Hit the refresh button to force a re-detect. - Press F8 when prompted - Select load driver

- Select load driver Loading a driver for your RAID controller enables the Windows install process to communicate with your faincy multi-drive array. :Pressing F8 is how you bring up the Safe Mode options during a normal Windows boot.Hitting refresh probably won't do anything if everything's plugged in correctly.Enabling PATA in the BIOS won't help if you're using a RAID card.

In a SOHO wireless network, which of the following prevents unauthorized users from accessing confidential data? Change SSID name Enable MAC filtering Reduce broadcast power Set encrryption

- Set encryption NOT MAC filtering. Not was effective, as the packets are still in the clear. Setting encryption on your Wi-Fi network keeps unwanted people out and keeps your private info private.:Reducing the broadcast power on your WAP will just make the range and speed of your network worse.Changing the SSID name won't necessarily keep anyone out of your network.Enabling MAC filtering will keep unwanted users off your network, but all the data you transmit will be in the clear unless you encrypt your network, so anyone with a network scanner could read your packets.

After an installation of a video adapter, the screen on a Windows 7 system doesn't display anything after POST. Which of the following Windows 7 functions will resolve this? Component Management Device Manager Startup Repair Task Manager

- Startup Repair Try booting into startup repair in order to repair or install video drivers.:Component Management is a made up answer.You can't get into Device Manager or Task Manager if there's nothing on the screen!

What decides which part of an IP address is the host address and which part is the network address? - Default gateway - DHCP lease - DNS address - Subnet mask

- Subnet mask A subnet mask splits an IP address into a network address and a host address. DNS is responsible for for resolving IP addresses to domain names. A default gateway is a network's default router. A DHCP lease is the amount of time that a DHCP server grants a computer its IP address.

Which of the following would you use to segment a LAN and provide extra ports? - Access Point - Hub - Modem - Switch

- Switch (Dammit! 'Procide extra ports' is the key phrase. I picked 'Access Point', a Wireless thingy.) A managed switch can use VLANs to create network segments.:An access point is a device that enables clients to connect to a wireless network.A modem is used for dial-up Internet access.Hubs are dumb devices that do nothing but provide extra Ethernet ports.

What must a technician do when replacing a 10/100 NIC with a 1 GB NIC? - The drivers for the new 1 GB NIC must be installed - The NW cable must also be upgraded - The NIC speed cannot exceed 10/100 and the PC must support digitally signed drivers. - The PC must be rated to support the 1 GB NIC speed

- The drivers for the 1 GB NIC must be installed You must install drivers for the new NIC in order for the computer to use it. The other answers are all made up. (...!!!)

Having purchased a 4 GB SO-DIMM to install in his graphics workstation, a client finds himself unable to install the RAM. What is the most likely explanation for this? Graphic workstations require flash memory Graphic workstation require solid state memory The memory is incompatible for the workstation The workstation has no available memory slots

- The memory is incompatible for the workstation. A graphics workstation most likely requires a plain old DIMM. SO-DIMMs are for laptops.Incorrect Answers:Graphics workstations use regular RAM, not flash or solid state memory.Even if there were no available memory slots, the user could always just remove an old stick to replace with the new one.

A user describes a loud clicking noise coming from their system, and are unable to boot their computer to the operating system. The technician determines the loud clicking noise to be from the hard drive. What is MOST likely creating the noise? Bad spindle motor bearings Solid state read/write head scratching the platter surface The motion of the read/write head armature parallel to the platter Your system attempting to connect to the drive

- The motion of the read/write head armature parallel to the platter Traditional hard drives use platters that spin and use read/write heads on actuator arms to read the top and bottom of the platters. The arms are controlled by a servo motor. All these moving metal parts can wear down over time and break. :Your system uses electronic signal and no audible sound occurs. Solid state drives do not use moving parts.The hard drive does not have spindle motor bearings.

A technician recently installed a new video card in a PC that has integrated video on its motherboard. When the technician turns on the PC, there is no video. Which of the following is most likely the cause? The incorrect video card drivers are installed The MOBO BIOS revision is out-of-date The power connector for the video card is unplugged The video card is unsupported by the MOBO

- The power connector for the video card is unplugged It's likely that the technician forgot to attach the video card to the power supply. It's amazing how easy that is to do.:Updating BIOS firmware won't help with this problem.If there's no video at all, it's not a driver issue.The general rule with video cards is that if you can plug it into the motherboard, the motherboard supports it.

An office printer that was working earlier in the day is no longer printing any documents. Pre-existing workstations are manually configured to print to the printer directly over the network. A technician has started to troubleshoot the problem and determines that the printer can still be seen in the network directory. The technician has also verified that the printer can print self diagnostic pages successfully. Which of the following is the MOST likely cause of the problem? - "Perform Printer Maintenance" message is displayed on the printer's LCD panel - The NW print spooler service has been restarted. - The printer's IP address has changed. - 2 or more users sent print jobs simultaneously, causing a collision.

- The printer's IP address has changed. The printer is functioning properly, however, print jobs are not reaching the printer.:If the spooler service was restarted, it would not cause print jobs to not print. It may help them to print, if the spooler had been stopped.The printer does not need maintenance, as it is printing diagnostic pages properly. (This was the answer I had chosen, not having paid attention to the diagnostic pages printing part) A print spooler will prevent simultaneous jobs being sent to the printer.

Your PC displays the message 'Non System Disk or Disk Error'. Wotf will produce this result? The hard drive partition was not activated. The system files were not transferred to the hard drive. The CMOS lost the hard drive configuration. The system was not shut down properly.

- The system files were not transferred to the hard drive. (Oh, that makes sense. boot.ini...) Your system files must be in the boot sector of the device that your are trying to boot to, in this case the hard drive does not contain these files and thus causes the error message to appear.

Your system volume is running out of disk space. You need to extend the system volume to give it more space. Which of the following conditions must be met to extend the system volume? (all) - The disk must have contiguous free space on the same disk. - The system volume must be on a dynamic disk. - The system volume must be on a basic disk. - The system volume must formatted with NTFS. - The volume must be spanned to use disk space on a different disk.

- The system volume can only be extended using contiguous free space on the same disk. This is the same for both basic and dynamic disks. Any volume can only be extended if it is unformatted or formatted with NTFS. - The system volume can be on either a basic or dynamic disk. The system volume cannot be extended or spanned to non-contiguous space or to space on another disk. - The system volume can only be extended using contiguous free space on the same disk. This is the same for both basic and dynamic disks. Any volume can only be extended if it is unformatted or formatted with NTFS. - The system volume can be on either a basic or dynamic disk. The system volume CANNOT be extended or spanned to non-contiguous space or to space on another disk. (Revisit this one)

I just got a widescreen flat panel display. The old monitor was configured at 800 x 600 resolution. I install the new display and it works properly, but when I try to change the resolution setting to the recommended 1280 x 768 the resolution is not available. What is most likely the problem? Not enough video memory. The video card does not support the higher resolution. The video memory is too slow. All of these choices are correct.

- The video memory is too slow. Although the monitor may be capable of the higher resolution, the video adapter card may not. If you plan to upgrade a monitor, you should also verify whether you need to upgrade the card to match a higher resolution.

You acquire a new laptop with an AMD Athlon 2000+ processor. You check the system properties expecting to see the processor running at 2.0 GHz. It is running at 939 MHz. What is the problem? There is no problem. You need to register to activate the processor. You need to check the BIOS. You have to overclock to get the 2 GHz speed.

- There is no problem. (Not checking the BIOS?) In order to extend battery life and reduce heat the mobile processor scales its clock speed to match the demands of the system. At top speed this processor runs at 1.6 GHz.

When installing a printer in Windows, which of the following is the purpose of the Additional Drivers button on the Sharing tab in the printer's properties? - To add additional drivers for different printing modes. - To add additional drivers for other operating systems - To add additional drivers for other printers on the PC - To add additional drivers to emulate a different printer

- To add add'tl drivers for other operating systems. Not every computer accessing the shared printer will be running the SAME VERSION OF WINDOWS... so the Additional Drivers button enables you to install drivers for other versions of Windows.Incorrect Answers:None of the other answers describe the purpose of the Additional Drivers button.

A technician is changing out a toner cartridge in a high-volume printer. As they are removing the empty cyan cartridge, a large amount of blue powder falls out onto the rollers in the immediate area. Which of the following should the technician do next? Immediately leave the scene and sound an emergency to security Use a toner vacuum to remove spilled toner from the undesired surfaces Use compressed air to remove the spilled toner from the undesired surfaces Use the maintenance kit to remove and replace the affected parts

- Use a toner vacuum to remove spilled toner from the undesired surfaces (I chose the compressed air because, well that's what I would have done. That's all, but I guess it would have just made a bigger mess) A toner vacuum will clean out the spilled toner in no time.:You don't need to leave the scene and sound an emergency. It's just spilled toner!Compressed air will just blow the toner around inside the printer. A vacuum will remove the toner.If the problem is simply spilled toner, you don't need to replace anything.

What is the simplest way to prevent unauthorized users from joining a wireless network? Institute MAC filtering Set up static IP addresses Update the router FW Use wireless encryption

- Use wireless encryption Setting wireless encryption on a network will prevent anyone who doesn't know the network password from joining the network.:Updating router firmware is probably a good idea, but it won't keep unauthorized users off your network.MAC filtering is great for keeping people out of your network, but it's not exactly simple.Static IP addresses won't help you here.

Which of the following conditions most increases the likelihood that ESD will occur? - cool, damp conditions - cool, dry conditions - hot, damp conditions - hot, dry conditions

- cool, dry conditions (Always remember to touch the computer case before touching inside)

IRQ 1 is commonly assigned to: - system timer - real time clock - keyboard - it's usually open - none of the above

- keyboard IRQ 0 is system timer, Real time clock is IRQ 8.

When plugging the P8 and P9 power connectors into the system board, which of the following is true? - the black wires of both connectors should be next to each other - the black wires of both connectors should NOT be next to each other - P8 and P9 don't plug into the system board - it doesn't matter which way you plug them in, the voltages are the same

- the black wires of both connectors should be next to each other (P8 and P9 are actual connectors...and the black wires should always point toward each other. These are the little slim molex-looking type. http://cdn.computerhope.com/p8p9.jpg. And #4 would be switching them, which could cause some serious damage.)

Which IRQ does the system timer commonly use? - 0 - 1 - 10 - 15 - None. It doesn't use an IRQ.

0 (Holy crap! How did I get this one right!? Praise the Lord! I guess my line of thought was a system timer seems really basic, so 0? No f's given.)

Which of the following is an example of a MAC address? - 00-00-00-1B-02-55 - 192.17.2.1 - 4309:FD21:ACB3:0012 - http://www.compita.org

00-00-00-1B-02-55 00-00-00-1B-02-55 is an example of a 48-biit MAC address.Incorrect Answers:192.17.2.1 is an IP address.Http://www.comptia.org is a URL.4309:FD21:ACB3:0012 (what I ALMOST chose) is a 64-bit address. It's formatted like part of an IPv6 address.

Viserys just installed two new memory modules into his computer. His motherboard supports DDR3 RAM with a maximum bus speed of 1600 MHz. The memory modules he installed were mismatched; one operates at 1066 MHz and one at 1333 MHz. At what bus speed will the system function? 1000 MHz 1066 MHz 1600 MHz 800 MHz

1066 MHz When mismatched RAM modules are installed, the system operates at the speed of the slower module; in this case, that's 1066 MHz.Incorrect Answers:The other answers are just there to trick you. Don't fall for them!

Which of the following ports are most commonly used when sending or receiving e-mail? (Select two.) - 110 - 25 - 443 - 53 - 80

110 -25 Port 25 is used by the SMTP protocol, which is responsible for sending e-mail, and port 110 is used by the POP3 protocol, which is responsible for receiving e-mail. Port 53 is used by DNS.Port 80 is used by HTTP. Port 443 is used by HTTPS.

Which IEEE version supports peer-to-peer transmission of data? - 1394b - 1394a - 1394.3 - 1394

1394.3 The IEEE 1394.3 version added peer-to-peer data transmission support to the IEEE 1394 standard. This allows data to be transferred from one device to another without going through a computer. For example, data can be transmitted directly between a digital video camera and a recording device.

How many pins does a DIMM have? - 50 - 64 - 72 - 128 - 168

168

A customer has requested a high-end gaming PC system. In designing the system, which of the following feature-sets of the power supply should be installed? (Select THREE). 24-pin main connector 450 watts of power Dual 12v rails High number of connectors Mini molex connector Mini-ITX form factor

24-pin main connector Dual 12v rails -High number of connectors When purchasing a power supply for a gaming system, more is better. The components used in gaming systems often are not the onboard components, so it requires more connections for devices. In addition, the componenents themselves draw more power. Multi-rail systems in today's power supplies help to ensure when the system power is heavily loaded, the power supply can balance the need.:Mini-ITX is a motherboard form factor.Mini molex connectors were mostly used for floppy disks.450 watts of power would be too low for a gaming system.

After installing a new firewall, Bran can't send any e-mail. What port in the firewall should he check? - 110 - 21 - 25 - 443

25 Port 25 is used by SMTP, the protocol in charge of sending e-mail.:Port 21 is used by FTP, used to transfer files between computers.Port 110 is used by POP3, which is in charge of receiving e-mail.Port 443 is used by HTTPS, which is the secure form of the HTTP protocol.

What is the maximum transmission speed for Bluetooth devices? 3 Mbps 11 Mbps 1 Mbps 54 Mbps

3 Mbps (Knew it! 11 mbps is the speed of 802.11a, and it would seem odd if they synced up perfectly with different wavelength types. Plus, it's odd that Bluetooth is never used for video. Just audio headsets and input devices.) Bluetooth has a maximum transmission speed of up to 3 Mbps. 802.11b networks transmit up to 11 Mbps, while 802.11a and 802.11g networks transmit up to 54 Mbps.

To connect to a PC using RDP, what port should you open? 21 3389 443 80

3389 = RDP But this one was obvious. Port 3389 needs to be open for Remote Desktop connections.Incorrect Answers:Port 21 is used for FTP, port 80 is for HTTP, and port 443 is for HTTPS.

Which IRQ does COM1 commonly use? 3 4 6 7 14

4 (Lucky guess! From GoCertify.com)

What is the maximum cable length for the IEEE 1394a standard? - 100 meters - 3 meters - 5 meters - 4.5 meters

4.5 meters (Almost said 5, but that's USB.)

What is the maximum data transfer rate of an IEEE 1394a device? - 100 Mbps - 1,600 Mbps - 800 Mbps - 200 Mbps - 400 Mbps

400 Mbps The maximum transfer rate of an IEEE 1394 device is 400 Mbps.

Pick out the public IP address. - 10.0.0.1 - 172.168.0.1 - 192.168.1.1 - 62.10.1.1

62.10.1.1 But this was kind of obvious. 62.10.1.1 is the only public IP address listed. It's a Class A address.:10.0.0.1 is a Class A private address.172.16.0.1 is a Class B private address.192.168.1.1 is a Class C private address. You see this often as the default IP address for SOHO routers.

How many devices does a single IEEE 1394 bus support? - 8 - 127 - 256 - 63

63 An IEEE 1394 bus can have up to 63 devices. The USB bus supports up to 127 devices. Older SCSI buses support 7 devices (or 8 including the host adapter). (This damn site said my answer was wrong, and supposed to be 127 to be correct. But this summary says otherwise. And I know for a fact it's 63 because I've studied this sufficiently. GoCertify's reliability is abysmal.)

Which IRQ does LPT1 commonly use? - 1 - 4 - 5 - 7 - 8

7 (I remember Matt - I think that was his name - at OneNeck mentioned the exam having this very question! None of the other answers are given any explanation when selected.)

How should a newly-installed serial port be configured? 8 data bits, even parity, 2 stop bits 8 data bits, no parity, 1 stop bit 7 data bits, even parity, 1 stop bit 7 data bits, no parity, 1 stop bit

8 data bits no parity, 1 stop bit Lucky guess! I took into account that it's a DB-25, aka Centronics connection. 3 rows of 8 pins, plus one. This makes 24, plus the stop bit...stop pin? For a total of 25 Correct Answer:Serial ports should be configured with eight data bits, no parity, and one stop bit.Incorrect Answers:The other choices will result in an improperly-configured serial port.

What ports are used by the two HTTP protocols? - 110 and 53 - 25 and 53 - 53 and 8080 - 80 and 443

80 and 443. HTTP uses port 80, and HTTPS uses port 443.:Port 25 is used by the SMTP protocol, and port 53 is used by DNS.Port 8080 is an alternate port used sometimes by HTTP, most often on a proxy server.Port 110 is used by POP3.

Which of these wireless standards is limited to the 5 GHz range? - 802.11a - 802.11b - 802.11g - 802.11n

802.11a (Thank God for intuition!) 802.11 a only operates on the 5 GHz range, giving it a speed of 54 Mbps and a range of around 50 feet.:802.11 b and g operate on the 2.4 GHz band.802.11 n can operate either on the 2.4 or 5 GHz band.

Which of the following Wi-Fi standards operates at the shortest distance? 802.11a 802.11b 802.11g 802.11n

802.11a operates at 120 meters, but is also most susceptible to interference. 802.11b is the one with slowest throughput. 802.11a works on the 5 GHz spectrum and, while it has fairly high bandwidth potential and uses an unused frequency, it also suffers from having to have almost line-of-sight communciations to be effective. Its distance limitation is 120 meters according to specficiation, but is most likely going to be even shorter than that because of walls and other interference.:802.11b/g both have a distance limitation of 140 meters, while 802.11n tops out at 250 meters.

A technician is replacing all of the access points in an office to increase the wireless speeds. The current location of the access points allows for wireless connectivity throughout the entire office. Which of the following 802.11 standards should be used? 802.11a 802.11ac 802.11b 802.11g 802.11n

802.11ac When replacing the access points to increase speed of the connection, it is best to use the latest generation of the standard. The standard offers backward compatibility to most previous standards.:All the standards are older standards, and do not have the latest technology. 802.11ac provides faster throughput.

What 802.11 wireless standard has the lowest throughput? A B G N

802.11b has the lowest throughput. 11 MB/s. 802.11 b has a throughput of only 11 Mbps.:802.11 a and g have throughput of 54 Mbps.802.11 n has a throughput of up to 600 Mbps.

You are shopping for a new wireless router. Which standard is going to provide you the fastest throughput? - 802.11a - 802.11b - 802.11g - 802.11n

802.11n 802.11n offers the greatest throughput at up to 600 Mbps. 802.11a and 802.11g both operate at 54 Mbps.802.11b operates at 11 Mbps.

What wireless standard is backwards-compatible with 802.11g? - 802.11a - 802.11b - 802.11n - 802.1q

802.11n Woo, intuition! 802.11n devices are backwards-compatible with 802.11g.:802.11a isn't at all compatible with 802.11g. 802.11g is backwards-compatible with 802.11b devices, but not vice-versa. 802.11q is not a real thing.

Which are the standard types of floppy disk drives? a. 3.5" b. 4" c. 4.25" d. 5.25" e. 6" - a and b - a and d - b and e - c and d - all of the above

A and D: 3.5" and 5.25" Floppies

An "active" CPU cooling solution contains which parts? - A heatsink and thermal compound - A heatsink, attached fan, and thermal compound - A heatsink, case fan, and thermal compound - A heatsink, radiator, and thermal compound

A heatsink, attached fan, and thermal paste. An "active" cooling system consists of a heatsink attached to the CPU using thermal paste to assist heat transfer. A CPU fan makes sure that heat dissipates as quickly and efficiently as possible.:The other answers are not components of active cooling systems. Case fan is not CPU-relevant.

A spec provided by hard disk driver manufacturers is called MTBF. What is this? The hard disk drive maximum transfer rate, in MB/s. The spinning speed. The blockmode. The size of the buffer. None of the above.

A spec provided by hard disk driver manufacturers is called MTBF. What is this? - None of the above. MBTF = Mean Time Between Failures - A measure of how reliable a piece of HW is. Often measured in terms of tens of thousands of hours.

On Monday, a user notices that the PC being used is not keeping correct time. Other users are not having this issue. The user's PC had a memory upgrade the previous Friday. The user states that the PC was powered off all weekend. Which of the following should the technician check FIRST in troubleshooting this issue? A. Check the CMOS battery to see if it has been dislodged. ​B. Check that the motherboard is functioning properly. ​C. Check that the DNS name of NTP server has not changed. D. Check with the administrator to ensure the NTP server is up.

A. Check the CMOS battery to see if it has been dislodged. (Other users are NOT having that issue. The DNS and NTP is all BS because of that.) (Official CompTIA A+ site)

A user's iPhone will not power on. Which of the following should the technician do FIRST to isolate the problem? A. Plug the phone into a known good charger ​B. Remove and reseat the battery ​C. Replace the screen glass assembly ​D. Replace the battery and charge the phone

A. Plug the phone into a known good charger (Removing and reseating the battery should be second. iPhone are NOT EASY to open. Replacing the battery is third.) (Official CompTIA A+ site)

The finance department has hired a new employee who works on payroll data spreadsheets. Which of the following items should the IT department install on the employee's monitor prior to deploying it? A. Privacy filter ​B. Screen protector ​C. Spam filter ​D. Monitor stand

A. Privacy filter (Official CompTIA A+ site)

In Windows, what gives a PC an IP address in the absence of DHCP? - APIPA - ARP - DNS - IPv6

APIPA Automatic Private IP Addressing (or APIPA) hands out IP addresses when the PC isn't getting one from anywhere else. You won't get on the Internet with an APIPA address, though. :The Address Resolution Protocol (ARP) resolves IP addresses to DNS names.IPv6 is the latest revision of the Internet Protocol; a 128-bit addressing system that will save us all from a future without Internet.

You need to purchase a case that meets the following criteria: Compatible with most form factors At least two external and internal bays Good balance of size and space Which case type should you purchase? Mini-ITX tower ATX mid-tower ATX full-tower Micro-ATX tower

ATX mid-tower (Almost went with mine, the Micro-ATX, but it's not compatible with most form factors.) You should purchase an ATX mid-tower case. ATX mid-tower cases are compatible with the most motherboard form factors and typically have at least two external bays. (External bays I'm assuming like optical drives and the like)

Wearable technology devices used to track personal activity use what technology to determine user activity levels? Accelerometer Digitizer Gyroscope Inverter

Accelerometer An accelerometer is a device that detects its own acceleration and is used in mobile phones to determine the phone's orientation. Once the orientation is determined, the phone's software can react accordingly, such as by changing its display from portrait to landscape.Incorrect Answers:An inverter is an electronic device that changes current.A gyroscope is a disk that is free to spin on any orientation by itself.A digitizer is a device that is used to convert analog signals into digital signals.

According to Nyquist's Theorem the sampling rate should be at least: Double the maximum amplitude of the analog signal we want to capture. Triple the maximum frequency of the analog signal we want to capture. Double the maximum frequency of the analog signal we want to capture. Double of the signal-to-noise ratio of the analog signal we want to capture. None of the Above.

According to Nyquist's Theorem the sampling rate should be at least: Double the maximum frequency of the analog signal we want to capture.

What does active partition mean? Single partition. Partition with all the hard disk drive capacity. Partition with an operating system installed. Partition that will be used to boot the operating system. None of the above.

Active partition: - Partition that will be used to boot the operating system. (So close)

Which of the following are characteristics of Bluetooth? (2) Ad hoc connections Line-of-sight transmission 5.75 GHz radio wireless 2.4 GHz radio wireless Red spectrum light waves

Ad hoc connections 2.4 GHz radio wireless (Knew it! 5.75 GHz is too damn high!)

Which of the following are good ideas for cooling a high-end gaming PC (2)? - Additional case fans - Liquid cooling system - Lower-wattage power supply - Passive cooling - Power-saving NIC

Additional case fans Liquid cooling Liquid cooling is a great idea for keeping your most important components (primarily the CPU and video card) cool, and adding additional case fans will keep the rest of your system cool, too.:A power-saving NIC won't help cool your PC at all.Passive cooling won't cut it for a gaming PC.A lower-wattage PSU will make your gaming PC not work at all. Which I guess would keep it cool.

Jan says that when she walks away from her laptop for a long period of time, she has to reconnect to the wireless network when she gets back. Which of the following will most likely correct this issue? Adjust advanced power settings Disable screensaver Install a higher-capacity battery Replace the Wi-Fi card

Adjust advanced power settings In the advanced power settings, there should be a section to modify the power saving mode of your wireless adapter. Jan is most likely set to a power-saving mode that causes her Wi-Fi card to go to sleep after a period of time. Having this feature enabled will force her to reconnect every time she comes back to use her computer.:Disabling her screensaver will just keep the screen from being "saved." It doesn't affect the Wi-Fi adapter.There's nothing that really says the Wi-Fi card could be on its way to the "big network in the sky," but based on the information we are given about Jan's problem, we should most likely assume that it's a power management issue.Installing a higher-capacity battery will make the laptop heavier and last longer on a single charge, but it won't change how her W-iFi adapter is behaving.

A customer is considering upgrading his office to wireless networking. He is aware of most of the interference factors concerning the deployment. His only concern is that the phone system in the office uses 900MHz cordless handsets and headsets for all workstations. Armed with this info which wireless specification would overcome this issue? 802.11 802.11a 802.11b 802.11g Any of these

Any of these Any of the provided options are acceptable as they all operate outside of the 900Mhz frequency range.

What is the purpose of DHCP? Assigns IP addresses on a NW Blocks MAC addresses with security violations Encrypts data on a NW Translates IP addresses to domain names

Assigns IP addresses on a NW DHCP automatically assigns IP addresses to computers on a network.:DHCP doesn't block MAC addresses, translate IP addresses, or encrypt network data.

What type of 802.11 network has a maximum throughput of 11 Mbps? - A - B - G - N

B 802.11 B networks have a maximum throughput of 11 Mbps.:802.11 A has a throughput of 54 Mbps.802.11 G's throughput is also 54 Mbps.802.11 N's maximum throughput is 600 Mbps.

A technician is installing an additional memory module in a laptop. Which of the following components should the technician remove to help mitigate the threat of ESD damage to the DIMM? A. Hard drive ​B. Battery ​C. CPU D. Screen E. Keyboard

B. Battery (Laptop.) (Official CompTIA A+ site)

A technician is troubleshooting performance issues with a desktop PC and hears clicking noises coming from inside the case. Which of the following is the MOST likely cause? A. Low voltage power supply ​B. Failing magnetic hard drive ​C. Corrupted Solid State Drive D. Overheated RAM

B. Failing magnetic hard drive (Official CompTIA A+ site)

A customer needs to create a copy a database on media, however the file is 89GB. Which of the following format specifications can support the file size? - BD-R - BD-RE - BD-RE DL - BDXL

BDXL (By process of elimination. I knew the other ones wouldn't cover that capacity.) Conventional Blu-ray technology has a capacity of 50GB. BDXL supports 100 GB and 128 GB disks through triple and quadruple layer disks.

Where can you change the speed of your system fans? - Action center - BIOS - Device manager - Power options

BIOS (Well, it's NOT power options, then.) Most system BIOS setup screens have a way to change your system fan speed.

A page from a laser printer is smeared. Most likely cause? Low toner. Poor quality paper. Dirty corona wires. Bad fuser unit.

Bad fuser unit. A bad fuser unit will cause smearing on a printed page.

Where should the thermal paste go when installing a processor? Between the heat sink and fan Between the CPU and fan Between the motherboard and CPU Between the heat sink and CPU

Between the heat sink and CPU Thermal paste or a thermal pad is found between the heat sink and the CPU. The thermal paste helps to make a good contact between the CPU and the heat sink so that heat can move between the two. Processors require some form of heat dissipation system to function properly. Without a heat dissipation system, a processor will overheat and burn out in less than a minute. Most modern CPUs require a heat sink and a fan.

You are troubleshooting a computer that reboots at strange times. Even when you try and access the CMOS setup, the computer will reboot. What should you check FIRST? - Check for blown capacitors - Check to see if the case fan is spinning - Check to see if OS is corrupted - Replace the CR-2032 battery

Blown capacitors When this happens, it will short circuit the conductors that are carrying power, causing random reboots, among many other types of errors.Incorrect Answers:While checking to see if your case fan is spinning is a good idea, it's not the FIRST thing to check for in this scenario.

You need a type of wireless connection that can transfer data between your phone, PDA, and laptop. You are transferring sensitive information. Which would be the best choice? Bluetooth Cellular WAN Infrared Wireless Ethernet

Bluetooth A Bluetooth connection would be the best choice because it automatically detects Bluetooth-enabled devices and creates a wireless PAN between them. It can be used for both voice and data signals, and it also provides 128-bit encryption to protect sensitive information in transit. Infrared is a line-of-sight medium so it may be difficult to maintain connectivity, it also doesn't provide encryption. Cellular WAN provides very little security for information in transit and requires a cellular connection for each device. Wireless Ethernet is used for transferring data, not connecting devices.

You want to use a wireless keyboard and mouse with your laptop computer. Which method should you choose? Bluetooth 802.11g wireless PS/2 USB IEEE 1394

Bluetooth Bluetooth would be the best choice because it has a high transfer rate and because it automatically detects other Bluetooth devices in the area and creates an encrypted PAN between them. (And even if there's a USB wireless function, what would that still be? Bluetooth.) (No longer adding the dashes before my options. Messy and boring. Simplifying.)

A technician is trying to reinstall Windows on a machine. He's already inserted the install disc in the optical drive, so what will he most likely have to configure next? BIOS password Boot sequence Clock speeds Flash BIOS for firmware upgrade

Boot sequence To ensure that the computer boots to the installation media, the technician should check that the optical drive is at the top of the boot sequence.Incorrect Answers:A BIOS password is not a requirement for installing an operating system.You don't need to upgrade your BIOS firmware to install Windows.Configuring clock speeds won't help.

You have an internal DVD drive plugged into the internal connector of a SCSI card and a scanner plugged into the external connector to the same SCSI card. Wotf requires termination? Only the External device. Only the Internal device. Both the Internal and External devices. Neither device.

Both the Internal and External devices. (Damn. Missed the part about it having the same SCSI card) Remember, the SCSI chain must have terminators (50 ohm terminating resistors) at both ends. The last device on a SCSI chain (internal or external) needs to have termination enabled. This can be accomplished in different ways, depending on the device, but this fact holds true of all SCSI chains.

Which of the following will ensure optimal system cooling? (3) Remove unused expansion slot covers to increase air flow. Bundle cables together and secure unused cables to the case. Stack hard drives next to each other. Remove the side panel on the case. Leave space between the case and any walls or obstructions. Keep the ambient temperature below 80°F.

Bundle cables together and secure unused cables to the case. Leave space between the case and any walls or obstructions. Keep the ambient temperature below 80°F. Consider the following recommendations to ensure optimal system cooling: Keep the case free of dust and debris. Excess dust can restrict airflow and prevent proper heat transfer. Reduce the number of airflow obstructions. Employ proper cable management (e.g., bundle cables together and secure unused cables to the case). Space out multiple hard disk drives instead of stacking them next to each other. Maintain appropriate ambient temperatures. Optimal ambient temperatures are between 60 and 80 degrees Fahrenheit. Ensure proper ventilation; leave space between the computer and any walls or desks. Preserve negative pressure inside the case by keeping all covers and shields installed (e.g., unused expansion cards, I/O shield, front drive bays).

A user complains of a discoloration of the screen on their monitor after leaving their system on during vacation. This is an example of: Burn in Dead backlight Dead pixels EMI ESD

Burn in. Burn in on a monitor is a permanent discoloration of areas caused by prolonged display of an image that does not move. It creates a permanent ghost like image of the object. Screen savers were a common preventative solution to burn in.:A dead backlight will not cause discoloration.ESD does not cause discoloration on the screen.Dead pixels will show small areas with no image display.EMI would only cause temporary display interference, it would not leave a discoloration.

The integrated mouse, the small monitor, and the compact nature of the keyboard are impeding your work when you use a notebook, but you still need a system that is portable if necessary. What is your best option? Buy a docking station for your notebook. Connect an external keyboard, mouse, and monitor when necessary. Buy the biggest notebook possible so you don't feel so confined. Switch to a tablet device. Buy a small, lightweight desktop computer.

Buy a docking station for your notebook. A docking station lets you use notebook systems as a desktop system. The docking station includes special ports that connect to the back of the notebook and let you use normal-sized external mouse, keyboard, monitor, and speakers. The docking station provides a quick and easy way to connect these peripheral devices. While you could connect these devices manually each time, using the docking station will be more convenient.

Which of the following types of cable has a maximum speed of 10 Mbps? CAT3 CAT5 CAT5e CAT6

CAT3 CAT3 cables have a maximum speed of only 10 Mbps. Pretty slow.Incorrect Answers:All of the other cable types have higher transmission speeds.

When troubleshooting a VoIP telephone connection, the line connected to the telephone is MOST likely which of the following cable types? - CAT3 cable - CAT6 cable - HDMI cable - Single-mode fiber - USB cable

CAT6 cable. (Aha! I remember CAT 3 doesn't support VoIP. It can support PoE, but doesn't provide the bandwidth necessary.) VoIP phones use an IP ethernet network, such as the internet, to provide telephone service; so, it uses a network connection. CAT6 is the most common cable used in VoIP.:CAT 3 cable can support power over ethernet, however, it usually has difficulty providing the required bandwidth for VoIPUSB cannot be used for VoIP; it is used for peripherals.Single-mode fiber is used in fiber optics.HDMI cables are used for video/audio connections.

Which of the following display types relies on CCFL backlights to display an image on the screen? CRT LCD LED Plasma

CCFL Cold cathode fluorescent lamps (CCFLs) are commonly used in LCD technology to help illuminate your screen. If the CCFLs were to go out, the image would be so faint as to render the screen unusable.Incorrect Answers:LED displayes use LEDs for their backlight! This makes them cheaper and thinner than ever before.Cathode Ray Tubes (CRTs) don't use any backlights. Instead, they use an electron gun that fires at a phospher coated screen to illuminate the image.Plasma doesn't use backlights, either. In plasma displays, the plasma itself makes sure everything is illuminated.

Older laptop screens are backlit by which of the following technologies? A CCFL lamp A gas LEDs OLED

CCFL lamp Old laptop screens were lit by fluorescent (CCFL) lamps on the sides of the screen.Incorrect Answers:Plasma screens are lit by applying electrical charge to a plasma gas, but there hasn't ever (as far as I know) been a laptop with a plasma screen.LED and OLED screens are newer, more expensive technologies.

A technician is working on a workstation that is receiving read/write failures when trying to access a particular file. Which of the following commands should the technician use to resolve this issue? - CHKDSK - DISKPART - FDISK - FORMAT

CHKDSK The CHKDSK command scans a hard drive for errors and repairs them as needed.:DISKPART enables you to partition a drive from the command line.FORMAT erases all the data on a drive and sets up a new file format on it.FDISKis an older partitioning tool that was replaced by DISKPART.

Which of the following is a general term for the program that holds system information related to the starting of a computer? - Cache memory - CMOS - DRAM - UEFI

CMOS CMOS is a general term for the program that stores important system information related to the starting of a computer. Data held in CMOS includes the hard disk type and configuration, the order of boot devices to try, and other configurable settings related to the system hardware. UEFI is firmware that was designed to replace BIOS. The UEFI program controls the startup process of a computer and loads the operating system into memory. Cache is an area of memory that holds recently-accessed data. Random Access Memory (RAM) is a temporary data storage location that can be read from and written to.

Which of the following components would a user most need when building a virtual server? - CPU - HDMI - High-end sound card - High end video card - Networking speed - RAM

CPU RAM Every computer in the world needs, at minimum, a CPU and some RAM. Since you're sharing one computer's resources among many virutual computers, each one of the virtual PCs will need some of the server's CPU and RAM resources. A virtual server needs as many CPU cores and as much RAM as possible!:The word "server" might have thrown you a bit, but a good CPU and lots of RAM are far more important for any virtual machine than good network speed.If all you're creating is a virtual server, it doesn't need a sound or video card at all, much less high-end ones.HDMI would be more useful for an HTPC than a virtual server.

What is the correct order for installing a processor for proper cooling? Thermal paste, CPU, heat sink, fan CPU, thermal paste, heat sink, fan CPU, heat sink, thermal paste, fan Heat sink, CPU, thermal paste, fan

CPU, thermal paste, heat sink, fan The following is the correct order for applying devices to cool a processor: CPU Thermal paste Heat sink Fan

A technician is tasked with setting up a new employee in a company with webmail on a tablet, phone, and laptop. Which of the following items can be synced to all three devices via webmail? (Select THREE). Bookmarks Calendar Contacts Documents Gaming High Scores Programs

Calendar Contacts Documents Documents, Calendar and Contacts can be synced through webmail. Although most data can be synced, there are limitations to items that can be synced by webmail.Incorrect Answers:Programs cannot be synced by webmail.Bookmarks can be synced with devices, not by webmail.

A wireless network is experiencing intermittent connectivity. Which of the following would best resolve this issue? - Change broadcast channel - Disable SSID broadcasting - Enable MAC filtering - Enable wireless encryption

Change broadcast channel. Changing your broadcast channel to a less-used one can prevent interference caused by other nearby wireless networks.

While investigating a 4-year-old PC that is taking an unusually long time to boot, a technician discovers that the BIOS is rediscovering the hardware system at every boot. What should the technician do to resolve the problem? At the OS level, launch device manager and re-scan the HW Change out the CMOS battery on the MOBO Press "F9" while the PC is booting, but before the OS starts to load Reset the BIOS using the CMOS reset jumper

Change out the CMOS battery on the MOBO The CMOS battery is most likely dead or dying, so replacing it should fix the problem. The technician will also have to make any non-default CMOS settings that the user had previously set up.:Since this is a pre-boot problem, nothing in Windows will fix it.Pressing the F9 key during boot will bring up system recovery options for some brands of PC. It's not really a standard shortcut, though.The BIOS is already resetting every time the PC boots, so manually resetting it won't do a blessed thing.

You have just completed a clean installation of Windows 7 and have removed the installation DVD from the drive. When you restart the system you receive the error message "Can't find bootable device." Wotf would you do to correct the problem? Reinstall the DVD driver. Check Device Manager. Change the BIOS boot sequence. Look at Event Viewer logs.

Change the BIOS boot sequence. The system is trying to boot from the DVD, not the hard drive. We must reconfigure the BIOS boot sequence setting to include the hard drive in the boot sequence.

After connecting a laptop to an external monitor, no display is detected and the monitor goes into sleep mode. Which of the following should be attempted first to correct the problem? (Select two.) Change the input mode on the monitor Reboot the OS Reload the display adapter drivers Toggle the display using the keyboard shortcut Verify NW connectivity

Change the input mode on the monitor Toggle the display using the keyboard shortcut You should first try to change the input mode on the monitor, ensuring that it's looking at the correct video source. Also make sure that your laptop is actually outputting to an external display by using the keyboard's external display toggle.:Rebooting probably won't help. It might be OK to try eventually, but not before the correct solutions.Reloading the display drivers won't help.Network connectivity has nothing at all to do with this problem.

Which of the following should be regularly scheduled to fix hard drive errors? Anti-virus scan Check Disk Defragmentation System Restore

Check Disk The Check Disk utility scans a hard drive for errors and repairs any that it finds.:Defragmentation fixes what's called "file fragmentation," where individual files are stored in many different places on a drive.System Restore is used to take an OS install back to a previously-set snapshot in case of OS errors.An anti-virus scan simply scans for and removes viruses. It doesn't fix hard drive errors.

After replacing a motherboard on a customer's laptop for a no-sound issue, a technician realizes that there is intermittent wireless connectivity on the laptop. Which of the following should the technician perform first? - Check if the Wi-Fi antenna is connected properly to the wireless card. - Check to see if there's a wireless switch on the laptop and its current position. - Reinstall the driver of the Wi-Fi card. - Replace the wireless card becauce it is not fully compatible w/ the new MOBO.

Check if the Wi-Fi antenna is connected properly to the wireless card. Check to make sure that the Wi-Fi antenna is properly connected to the wireless card. A loose connection might be the cause of an intermittent connectivity problem.Incorrect Answers:All the other answers would be solutions for permanent problems, but not intermittent ones.

A user calls the help desk and states that she suddenly cannot connect to the Internet or any other network resources. The user is on a company network that uses DHCP. The technician runs IPCONFIG from the command prompt and the PC has an IP address of 0.0.0.0. Which of the following steps should the technician perform first to troubleshoot this issue? - Assign a static IP address - Check the NW cable - Reinstall the NW drivers - Replace the NW card

Check the NW cable. First off, make sure you check the network cable. A 0.0.0.0 address means that the computer isn't connected to any network. :You might eventually want to try replacing the network card or reinstalling the network drivers, but before going to all that effort, why not just check the cable?Assigning a static IP address won't fix the problem.

A customer says they cannot access the network printer. The technician cannot PING the printer from their location. Which of the following should be the next step in troubleshooting this issue? - Check the link lights on the printer NIC - Check the toner cartridge - Reboot the client PC - Reboot the printer

Check the link lights on the printer NIC The printer's NIC link lights will show you whether or not the printer is communicating with the network.Incorrect Answers:The toner cartridge doesn't have anything to do with the printer's network connectivity.Rebooting the client PC won't help with the printer.Rebooting the printer might help, but check the link lights first.

A technician is repairing a workstation that exhibits random reboots at odd times of the day. Which of the following should be performed first when troubleshooting the issue? (2) - Check the CMOS battery - Check the memory integrity - Check the optical drive integrity - Check the PSU integrity - Check the video card integrity

Check the memory integrity Check the PSU integrity (I'd credit these to lucky guesses, but I should stop doing that, and give God credit for the intuition He gave me.) Start by checking both the power supply and RAM, as those are the two components most likely to cause random reboots when they begin to fail.:A dead CMOS battery just results in the CMOS settings being reset to their default values after every restart.A dying video card usually results in video corruption.A failing optical drive simply won't read optical discs, or will refuse to open.

Which of the following CPU characteristics is the MOST important for performing single-threading tasks, as quickly as possible? - Clock speed - Fan speed - Hyperthreading - Number of cores

Clock speed. "single-thread" is the operative term here. Clock speed is the speed at which the CPU can execute instructions. The faster the clock, the more instructions it can execute.Incorrect Answers:Hyperthreading is not used in single-threading tasks.Fan speed will not effect the CPU task performance.The number of cores will not affect the speed of a single-thread task.

Your laptop has an ExpressCard /54 slot. Which of the following is true? (2) Compatible ExpressCards for the laptop include cards which are rectangular-shaped. Compatible ExpressCards for the laptop only include the L-shaped cards. You can use an ExpressCard /34 card or an ExpressCard /54 card in the laptop. You can only use an ExpressCard /54 card.

Compatible ExpressCards for the laptop include cards which are rectangular-shaped. You can use an ExpressCard /34 card or an ExpressCard /54 card in the laptop. The ExpressCard /54 slot accepts both ExpressCard /34 or ExpressCard /54 cards. ExpressCard /34 are rectangular-shaped cards, and ExpressCard /54 are L-shaped cards.

What component on the sound card is in charge of playing MIDI files? RAM Memory DAC ADC Synthesizer None of the Above.

Component on the sound card is in charge of playing MIDI files: Synthesizer (Made sense because chiptune synthesizers make the retro game sounds)

A user's computer will not boot. A technician notices four indicator lights on the backside of the computer. Two of the lights are green and two are amber. Which of the following documentation should the technician read to determine what the lights are indicating? Asset management Computer manual Network diagram Wiring scheme

Computer manual The computer's manual should show the technician what the lights mean.Incorrect Answers:A network diagram shows the layout of a network, not what a computer's indicator lights mean.Asset management is the practice of keeping track of supplies or other assets.A wiring scheme is a detailed report of the wiring standards used in a network.

A technician is building a PC with a motherboard he has not used in the past. He notices that the 8 DIMM sockets are numbered 0 through 7, and are colored yellow and black, equally. Which of the following would the technician do FIRST? - All sockets must be utilized - Consult the MOBO documentation - Utilize socket 0 first, then 1, etc. - Utilize the black DIMM sockets first. - Utilize the yellow DIMM sockets first

Consult the MOBO documentation. (The classic answer. Never fails if this is an option) Motherboard manufacturers use different layout rules for the sockets. It is best to always review the motherboard manual for specifics on how to install devices.:Manufacturers have different standards for their socket color, you cannot count on the socket color to indicate which slot should be used first.Some motherboards do require all sockets be filled, but without the motherboard documentation, you will not know if it is required.The socket nomenclature does not always indicate which slot is used first, or if the ram needs to be paired.

What should you do with a worn-out Li-Ion battery? - Contact your local disposal authority for guidance. - Recharge it - Return it to the manufacturer for a trade-in. - Throw it away.

Contact your local disposal authority for guidance. Standard safety procedure. All laptop batteries should be considered hazardous material. Contact your local waste disposal authority.Incorrect Answers:Don't throw it away! Don't try to return it. Don't try to recharge it. Just don't do it.

The power cord for the laptop has a block on it (sometimes called a brick). What does this block do? Converts DC power to AC power Provides direct power for CCFL-backlit LCD monitors Converts AC power to DC power Provides a hub for peripheral USB devices

Converts AC power to DC power (Because all outlets are AC, which works well traveling the long distances from the power plant to the home. Inverters do the opposite.) The block (also known as a brick) converts alternating current (AC) from the wall outlet to direct current (DC) used by the computer's internal components. CCFL-backlit LCD monitors use AC power. An inverter must convert the DC power from the block to AC power. An LED-backlit LCD monitor uses the DC power from the block.

What tool is used to attach RJ-45 connectors to the ends of UTP cable? Cable tester Crimpers Loopback plug Punch down

Crimpers A crimper connects RJ-45 plugs to the end of a piece of UTP cable.:A loopback plug tests a NIC's physical connection.A punch down tool is used to attach UTP cable to a patch panel or punch down block.A cable tester tests cable. Not super surprising.

What feature enables a SOHO router to pass out IP addresses to network clients? DHCP MAC filtering Port forwarding SSID broadcast

DHCP DHCP is in charge of passing out IP addresses automatically.:MAC filtering is a technique for blocking systems from joining a wireless network based on their IP addresses.SSID broadcast is the act of announcing a wireless network's name.Port forwarding makes it possible for Internet clients or services to make connections to a computer that is behind NAT.

A company is updating their office routers that handle all incoming and outgoing networking traffic. They would like the PCs to immediately connect to internet and network resources, without any additional configuration. Which protocol should the technician use to meet the requirements? - DHCP - NAT - Port forwarding - QoS

DHCP Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway.

Bilal is on his wireless network and his laptop receives the IP address 169.254.155.2, but cannot connect to the Internet. Which of the following should Bilal check on the wireless router? - DHCP - DNS - WPA - WPA2

DHCP Dynamic Host Configuration Protocol (DHCP) is the protocol/service that hands out IP addresses to all the devices on your network. If you can't contact the DHCP server, then your computer will automatically generate an APIPA of 169.254.x.x.:Wi-Fi Protected Access (WPA) is a level of encryption that uses TKIP as its encrypting algorithm.Wi-Fi Protected Access version 2 (WPA2) is a full upgrade from WEP and WPA. It uses AES as its encryption algorithm and is the most secure encryption you can currently use in Wi-Fi.Domain Name Service or System (DNS) takes friendly domain names and turns them into IP address so that you can surf the World Wide Web in bliss.

A technician is called out to look at a wireless client that can't access the Internet. She notices that the computer has an IP address of 169.254.155.2. What is the problem? - DHCP - DNS - WINS - WPA

DHCP If the wireless client can't access the DHCP server for some reason, its operating system will assign it an APIPA address. The tech should check the DHCP server.:WPA is a wireless encryption technology and has nothing to do with handing out IP addresses.WINS stands for the Windows Internet Name System. It is Microsoft's implementation of DNS, and neither it nor DNS hand out IP addresses.

What feature DOES NOT belong to Serial ATA standard? Serial transmission. 4-wire cable. 150 MB/s or 300 MB/s transfer rates. Master and Slave configuration. None of the above.

DOES NOT belong to Serial ATA standard: Master and Slave configuration.

Which of the following internet connection types is a digital connection that runs over standard telephone wiring? - Cable - Dial-up - DSL - Fiber optic

DSL DSL is the internet connection type that runs over telephone wiring.Incorrect Answers:Dial-up does run on telephone wiring, but is not digital. Although fiber and cable are digital connections, they do not run on telephone wiring.

Wotf settings are found in CMOS (all)? Date and Time Safe Mode Settings Hard Drive Setting CD-ROM Drivers BootGUI Settings

Date and Time Hard Drive Setting - BootGUI Settings The purpose of CMOS is to store configuration settings to be used by BIOS such as the type and number of hard drives, type and number of floppy drives, drive boot order, and power management settings.

For what is a DVI-D cable used? - Delivering an analog signal - Delivering audio and video - Delivering audio only - Delivering video only

Delivering video only DVI-D cables deliver video signals, just like every other type of DVI cable.:DVI-D has nothing to do with audio signals.DVI cables use a digital signal.

You have a legacy non-Plug-and-Play device that must be installed under Windows. What interface do you use to manage the configuration of this device after it has been installed? Add/Remove Hardware control panel applet Device Manager BIOS configuration program System Information

Device Manager (Under Windows being the operative phrase) After a device has been installed, use Device Manager to modify non-Plug-and-Play parameters such as IRQ, memory address, and DMA channel.

Ursula needs to configure a Cisco router using the serial port on her Vista laptop. The router documentation says the COM port needs to be set to: 9600 bits/sec, 8 data bits, no parity, one stop bit. Where does she go to make these settings for the serial port? CMOS Sound Control Panel Applet Device Manager Phone and Modem Control Panel applet

Device Manager Device Manager. Go to the Ports setting and locate your serial port. Select Properties.:Your CMOS will have settings to enable/disable the serial port as well as settings to set I/O addresses and IRQs, but there will not be settings for the COM port.The Sound Control Panel applet controls sound inputs and outputs, not COM ports.The Phone and Modem Control Panel applet sets up your telephony rules and tests your modems but does not deal with serial ports.

A technician user is building a system that requires turning off the onboard video and installing a higher end video card. When booting to the operating sytem, the card is not working correctly, although it was working fine on the test bench. Which of the following Windows utilities should the technician use to start troubleshooting the problem? Computer Management Device Manager System configuration Task Manager

Device Manager Device manager is the Windows utility used to view the hardware devices in your system, and determine if they are working properly. It will also allow you to modify the system's hardware settings.:Task Manager allows you to review software and operating system software that is currently running.System Configuration is a utiity that allows you to identify the problem with the Windows startup process.Computer Management is a collection of tools to manage a local or remote computer.

Which of the following input devices uses a stylus? Digitizer Trackpoint Touch pad Touch screen

Digitizer (Tablets sometimes use styluses, but Digitizers DEFINITELY use a stylus.) A digitizer pad is used in Tablet PCs to receive input. Input is written onto the pad with a stylus pen, then those motions are transferred into data that is processed by the system. A touchpad and a touch screen uses your fingers to receive input to move or click the mouse. A trackpoint or pointing stick is a knob that moves the cursor.

Joanna is setting up a SOHO wireless network and doesn't want her neighbors to be able to discover the network. How can she make this happen? - Configure a proxy server address - Configure DMZ settings - Disable SSID broadcast - Enable WEP encryption

Disable SSID broadcast Disabling the SSID broadcast will make it so that the network doesn't show up when the neighbors look for wireless networks.:A proxy server won't help here.WEP encryption might make it difficult for neighbors to join the network, but it won't keep them from discovering it.A demilitarized zone is used as a security measure in some large networks.

Where is a laptop's wireless antenna typically located? - Bottom bezel - Display bezel - Keyboard - Rear panel

Display bezel (I almost considered rear panel as an acceptable answer, seeing how they're almost the same thing?)

What device enables a laptop with a single video output port to support multiple monitors? - Adjustable monitor arm - Docking station - PCMCIA card - VGA to DVI converter

Docking station. (But what if the exam also lists 'splitter cable'?)

When installing a new point of sale printer, which of the following will you most likely need? - Drivers - Operating system disk - RG-58 - RJ-11

Drivers You'll need to install drivers so that the computer can communicate with the printer.

A company is working on making the office more environmentally friendly, and would like to reduce the amount of paper consumed on a multi-function printer. What setting can be utilized to achieve this outcome? Collate Duplex Economy ink Orientation

Duplexing. Duplexing is the only option that will allow you to reduce the amount of paper during a print job. It allows for printing on the front and back of the page, which can cut paper consumption in half.:The orientation (portrait or landscape) will not always allow less paper usage.Collate papers only sets them in proper order in multipage jobs.Economy ink will only save your ink cost, it will not save paper.

Which of the following components is a non-volatile memory technology for saving system settings when the computer is powered off? - BIOS password - EEPROM chips - CMOS battery - CMOS chips

EEPROM chips EEPROM chips are a non-volatile memory technology for saving system settings when the computer is powered off. EEPROM are ROM chips that have replaced CMOS chips (which needed the CMOS battery power to save system settings). Now the CMOS battery is only used to keep the real-time clock running.

Tina's computer is connected to the small network in her new café. The PC has a printer attached via USB that she wants to share with the network. How can she accomplish this goal most efficiently? Enable print sharing Install a print server Install a USB hub Install shared PCL drivers

Enable print sharing The simplest way to get the printer on the network is simply to share it by enabling print sharing. Incorrect answers:Installing older-style printer drivers wouldn't do anything. Installing a USB hub or a print server adds unnecessary costs. Her computer becomes a print server by enabling print sharing.

A user has installed a new wireless router and is unable to connect their game console to the manufacturer's network service. Which of the following should the technician look for first? - Conact the mfr to see if the service is available - Ensure the correct ports are open - Ensure the game system has a static IP address - Ensure the game sys has updated FW

Ensure the correct ports are open. To connect to the network services for game consoles, you might have to open some ports on your firewall.Incorrect Answers:Setting a static IP address for your router won't help unless the router has DHCP disabled. Basically every new wireless router out there has DHCP enabled by default, so this probably isn't the problem.If the correct ports are open and you still can't connect, then you might want to contact the manufacturer, but don't do it first.It's tough to update a system's firmware without first connecting to the manufacturer's network service so you can download the new firmware. This is something you'd do after connecting.

What is the exact location of the MBR on a hard disk drive? Head 0, Track 0, Sector 0 Head 0, Track 0, Sector 1 Head 0, Track 1, Sector 0 Head 0, Track 1, Sector 1 None of the above.

Exact location of the MBR on a hard disk drive: - Head 0, Track 0, Sector 1

A customer reports that their wireless laptop cannot connect after removing it from its carrying case. The laptop boots and the user is able to login. Which of the following should be checked first? Available HDD space External Wi-Fi switch Laptop battery levels Status in Device Manager

External Wi-fi switch. It's highly likely that the Wi-Fi switch got knocked into the wrong position during transport. Just flip the switch back into the correct position and you're good to go!:It's possible that the wireless card got disabled in Device Manager somehow, it's far more likely that the Wi-Fi switch got turned to the wrong position.Hard drive space doesn't affect wireless connectivity.A low battery would prevent the PC from turning on at all, not just from connecting to a wireless network.

What connector would you find only on a coaxial cable? F RJ-11 RJ-45 ST

F The F connector is the one you use to connect your cable box or cable modem to the wall.:RJ-11 connectors are used on telephone cords.ST connectors are for fiber-optic cables.RJ-45 connectors are for Ethernet cables.

Wotf is NOT a type of PC hard drive? - IDE - EIDE - SCSI - FDD

FDD (This one felt right. And it was. FDD stands for Floppy Disk Drive)

T/F: Opening up the PC's PSU is a good procedure.

False. As an A+ certified technician, you should NEVER open a power supply. Opening a power supply exposes you to extremely high voltages, as there is voltage and current stored in capacitors that will hold their charge for a long period of time. This charge could cause bodily injury to the technician or even prove fatal.

Of the following connection types, which can operate over the longest distance? - CAT 5 - CAT 6 - Fiber - USB 3.0

Fiber. Fiber-optic connections can operate over2000 meters. :The USB 3.0 standard doesn't actually define a maximum cable length, but it's probably somewhere around 3 meters.Both CAT 6 and CAT 5 cables have a maximum length of 100 meters.

IRQ 6 is commonly assigned to: - floppy drive controller - COM1 - LPT1 - sound card - keyboard

Floppy drive controller (Another good first guess. COM1 was IRQ 4 from earlier, LPT1 is IRQ 7 from earlier, there's no default sound card IRQ, Keyboard is IRQ 1.)

What is the simplest way to change the brightness on a laptop's monitor? Fn key In the BIOS In the Device Manager of the operating system In the video display drivers

Fn key Almost every laptop has a function key for controlling brightness.Incorrect Answers:Neither Device Manager nor BIOS contain settings for screen brightness. You might be able to change brightness in the display drivers, but that's not very simple.

What is the best way to toggle between a laptop's screen and an external monitor? - Display settings in Control Panel - Function keys on keyboard - Task manager - Turn the monitors on and off

Function keys. The function keys on the keyboard enable users to do things like change the brightness and contrast of the screen, change the speaker volume, and toggle to an external monitor.

One of the network printers is producing copies where the toner is smeared on paper after printing. What component should be checked? - Fuser - Maintenance Kit - Paper output tray - Print spooler

Fuser Thermal and laser printers use a fuser to heat the toner to a melting point. Once melted, the toner will fuse with the fibers of the paper. : The print spooler is a software based program that schedules print jobs; it does not effect the actual printing.

A custom configured PC with a powerful processor, high-end video, upgraded audio, and increased cooling would be most suited to which of the following applications? - Gaming PC - Thick client - Thin client - Virtualization workstation

Gaming PC This setup would be ideal for a powerful gaming PC. Work's for chumps!:Thin clients are the most bare-bones PCs around. They wouldn't have these advanced features.A virtualization workstation wouldn't need a high-end video card or upgraded audio.A thick client is just a basic PC. Nothing fancy needed.

What should you look for when building a home server PC? (Select two.) - Dual monitors - Gigabit ethernet - RAID support - Touch screen interface - Virtualization support

Gigabit ethernet RAID support The most important features for a home server are storage space (and storage redundancy), and network speed. Good RAID support and gigabit Ethernet cover those bases. The thing about servers is that you mostly access them remotely, so touch screens and multi-monitor setups are completely unnecessary.

You are working on a customer's laptop and need to swap out some parts. Which are of the following would you consider to be an FRU? (2) - HDD - NIC - RAM - Sound card - USB

HDD RAM Hard Disk Drive (HDD) and Random Access Memory (RAM) are great examples of Field Replaceable Units (FRUs).Incorrect Answers:Anything that you can't really remove from a laptop computer would fall into the realm of parts that are not FRUs. Such as sound cards, NICs, and USB controllers.

You want to equip yourself with FRUs for a laptop. What would you take with you? (Choose two.) - Hard drive - NIC - RAM - SD Card Reader - Video Card

HDD RAM The HDD and RAM are very easy to replace and are considered laptop field replaceable units (FRUs). :Video cards, NICs, and SD card readers are usually integrated into the laptop's motherboard and are not considered FRUs.

When walking past a server with a RAID 5 array, a technician hears a loud clicking noise. Which of the following could most likely occur? BSOD HDD failure OS not found on boot RAID array failure

HDD Failure A clicking hard drive means a dying hard drive. Get that hard drive out of the raid and replaced as quick as possible!:None of the other answers cause clicking.

John's client needs to connect an external monitor to his laptop. Which connection types is the laptop most likely to have to accomplish this goal? (Select TWO). HDMI PS/2 RCA Serial VGA

HDMI VGA Most laptops have a VGA port. Many new ones also have an HDMI port. Incorrect answers:PS/2 ports enable you to connect a keyboard or pointing device (like a mouse) to a computer. Serial ports are ancient and were used to connect mice. RCA jacks are for audio, not video.

If a client wanted to store all her media in one place and then stream it to all her devices, which of the following should a tech recommend to her? - Gaming PC - Home server - Home theater - Virtualization workstation

Home server

Which of the following terms describes a PC card that you can insert and remove without rebooting the computer? Hot-play Hot-swappable Plug-and-Play AT attachment

Hot-swappable Inserting and removing PC cards without rebooting the computer is called hot-swapping. This feature is also called dynamic reconfiguration.

How many information bytes can be stored in a sector? 128 256 512 1024 None of the above.

How many information bytes can be stored in a sector? - 512 (Hardwaresecrets.com)

Which of the following provides the least network security? - Firewall - Hub - Router - Switch

Hub A hub works by transmitting traffic to all nodes attached to it. However, only the device the information is destined for (based on MAC address) will actually process the information. Having said that, get yourself a nice packet analyzer and all of those juicy details now belong to you, making the hub the least secure on this list.:A switch by itself isn't exactly secure, but it has the possibility of being secure based on what functions come with the switch. A big difference between a switch and a hub is that the switch remembers where to send data by recording the MAC address information of different nodes. By doing this, a switch won't broadcast data to every port on the network once it has learned MAC addresses of the sending devices on its network. It only sends packets to the device the packet is destined for.A router deals with forwarding packets based on IP addresses. Many routers have password protection, so you can't alter their settings. Many SOHO routers come with built-in firewalls as well.Firewalls are the epitome of network security. They are often the first line of defense between your network and the many evil-doers on the Internet.

Which of the listed network devices can only broadcast data? - Firewall - Hub - Router - Switch

Hub. Hubs are only capable of sending out broadcast traffic. Incorrect Answers:Firewalls keep unwanted data packets away from a network or system.Routers connect two networks together.Switches are interconnectivity devices that are capable of sending packets to the computers that they're addresses to.

If a laser printer pulls multiple paper sheets at one time, what are the possible causes (3)? Worn Fuser Humidity Improper media Defective toner cartridge Worn Separation Pad

Humidity Improper media Worn Separation Pad (Wasn't sure 'separation pad' was a thing, but only made more sense than the rest. I was looking for 'rollers') Humidity could cause the papers to stick together, improper paper, or too thin paper for example, could allow many papers to be pulled at the same time. A defective separation pad could cause several papers to be used at a time.

What is it called when logical cores appear as real physical cores to an operating system? 64-bit architecture Hyperthreading MMU virtualization XD bit

Hyperthreading Hyperthreading is when one CPU core tricks the operating system into thinking that there are two processors.Incorrect Answers:XD bit refers to a technology for splitting CPU memory into areas for CPU instructions and areas for data.MMU virtualization is the technology that enables virtual machines to access a computer's peripherals.64-bit architecture refers to a computer with a 64 bit wide address bus.

IDE ports are usually connected to what bus inside the PC? Local bus. IDE bus. PCI bus. ISA bus. None of the above.

IDE ports are usually connected to: - PCI bus. (Ugh.)

Which of the following standards provides for data transfer rates up to 800 Mbps with a maximum cable length of 100 meters? - USB 2.0 - IEEE 1284 - IEEE 1394a - IEEE 1394b - RS-232

IEEE 1394b. IEEE 1394b (also known as Firewire 800) provides for data transfers of up to 800 Mbps and a cable length of 100 meters. IEEE 1394a (also known as Firewire 400) provides for data transfers of up to 400 Mbps and a cable length of 4.5 meters. USB 2.0 specifications allow for data transfer rates of 480 Mbps and cable lengths up to 5 meters. IEEE 1284 (parallel) has a data transfer maximum of 2 Mbps with a maximum cable length of 10 meters. RS-232 (serial) operates at relatively slow speeds but over longer distances.

A technician has a user whose system has a network link light, but the user is unable to access any of the company's internal network resources. Which of the following is the MOST likely cause of the issue? - Incorrect gateway - IP address conflict - Packet collisions - Slow transfer speeds

IP address conflict The only answer that would allow for no connection with a link light, is the IP address conflict. :Slow transfer speeds and packet collision can cause performance issues, but will still allow access. An incorrect gateway will not prevent you from accessing internal resources,but will only prevent internet access.

A customer is not able to connect to any Web sites. Which of the following commands should a technician run first to identify the issue? - IPCONFIG - NET SHOW - NETSTAT - TRACERT

IPCONFIG The IPCONFIG command will show you a system's IP information, which should enable you to more effectively troubleshoot the system. :NETSTAT displays all the network connections being made to a system.NET SHOW is a command for IBM's WebSphere Cast Iron client. Not something you'll run into while doing desktop support.TRACERT lists all the routers that a packet takes as it travels to its destination.

A user calls the helpdesk and states that they are receiving an IP conflict error on their computer. The user is on a company network that uses DHCP. The technician verifies the PC is using DHCP to obtain TCP/IP settings. Which of the following commands should the helpdesk technician use to resolve this issue? (Select two.) IPCONFIG /ALL IPCONFIG /FLUSHDNS IPCONFIG /REGISTERDNS IPCONFIG /RELEASE IPCONFIG /RENEW

IPCONFIG /RELEASE IPCONFIG /RENEW (Lucky guess. I just knew these were important.) The IPCONFIG /RELEASE command releases a computer's IP address, and the IPCONFIG /RENEW command gets the computer a new one.Incorrect Answers:The IPCONFIG /REGISTERDNS command refreshes a computer's DHCP lease.The IPCONFIG /ALL command displays a comprehensive list of a computer's IP information.IPCONFIG /FLUSHDNS deletes a computer's DNS cache.

If the maximum amplitude an analog signal can reach is 65,535 when converted to digital, the resolution being used is of: 8 bits 16 bits 24 bits 32 bits None of the Above.

If the maximum amplitude an analog signal can reach is 65,535 when converted to digital, the resolution being used is of: - 16 bits

What type of printer uses carbon paper? - Impact - Inkjet - Laser - Thermal

Impact (I'd like to take this moment to thank God for the intuition!) Impact printers use a special type of carbon paper and an ink ribbon in order to leave marks on the paper by striking the ribbon.Incorrect Answers:Inkjet printers use ink to print on a variety of types of paper.Thermal printers use heat-sensitive paper to create images.Laser printers can print on many different types of paper.

A technician is trying to diagnose a laptop that is experiencing heavy artifact corruption and random loss of video during operation. Which of the following are most likely causes of this problem? (Select two.) - Incompatible or untested video drivers have been installed. - Integrated sys video chip is failing and/or near death - The BIOS is not set for the proper operating temperature of the video chipset - The BIOS is underclocking the video card's speed - Video drivers were not installed directly from Windows update

Incompatible or untested video drivers, Integrated sys chip is failing/dying It's not at all necessary (and is in fact probably a bad idea) to install video drivers from Windows Update.The BIOS doesn't have to be set for the operating temperature of the video chipset. This is a nonsense answer.Underclocking a video chipset is unlikely and, if it was occuring, would probably tend to make things more stable, not less.

A user reports that the Web browser shortcut key on his laptop's keyboard isn't working. What would a technician do to resolve the problem? Installing ACPI drivers from a mfr's web site Installing AHCI drivers from a mfr's web site Installing bluetooh drivers from a mfr's web site Installing hotkey drivers from a mfr's web site

Installing hotkey drivers from a mfr's web site To get the user's special hotkeys working, the tech needs to install drivers for them.Incorrect Answers:Bluetooth, ACPI, and AHCI drivers won't help.

A technician notices a computer is overheating after 30 minutes of use. Which of the following is the most likely cause? - ACPI is disabled - Clogged temporary file folders - Incorrect input voltage setting - Internal dust buildup

Internal dust buildup. The buildup of dust on a PC's internal components can eventually cause overheating. Get in there from time to time with some canned air to clean your computer out!:Neither temporary files nor ACPI settings will cause overheating. An incorrect voltage setting for the CPU could be a sign that a user is overclocking their CPU, which could cause overheating, but this is much more rare than a dusty PC.

The image on a customer's laptop is very dim, with only the outline visible. What can cause this problem? (Select two.) - CRT - Inverter - LCD - OLED - Plasma screen

Inverter LCD If the LCD's inverter fails, the backlights can't get any power, causing the image to be so dim as to look almost black.: OLED screens are very uncommon and don't require a backlight. They either work or they don't; the picture won't get dim from an error.

What component is in charge of powering an LCD screen? - Backlight - Inverter - PCIe card - PCMCIA card

Inverter. The inverter provides power to an LCD screen.Incorrect Answers:PCMCIA cards are used as expansion slots on laptops.Backlights are also powered by the inverter.PCIe is a type of expansion slot, and has nothing to do with powering LCD screens.

What happens when a second SATA 3.0 device is added to a SATA cable that already contains a SATA 1.5 device? Errors occur on faster device. Bus speed reduces to 1.5. The slower device will not be detected. It cannot be added.

It cannot be added. SATA specifications and hardware permit only one device on each SATA cable. Multiple cable connections are available on the SATA controller for expansion.

How can you tell that a particular ribbon cable should only be used to connect a floppy drive? - It has a twist in it - It has a red line along one edge - It's wider than all the other ribbon cables - It's white

It has a twist in it.

Which of the following devices would you plug multiple DVI and USB cords into while setting it up? - KVM - LCD Panel - Touch screen - Webcam

KVM 'Multiple' is the operative word here. When setting up a KVM, you have to connect a cable for a monitor, keyboard, and mouse to every computer you're going to be controlling, plus one of each for the station you'll be controlling them all from. Touch screen monitors pretty much only need one DVI and one USB cable.An LCD panel will only use one DVI cable.A Webcam would only use one USB cord.

Which of the following connector types is associated with a fiber connection? - HDMI - LC - RJ-11 - RJ-45

LC LC connectors are used with multimode fiber-optic connections.Incorrect Answers:RJ-45 connectors are used with UTP cables for Ethernet.RJ-11 connectors are used with telephone cables.HDMI cables have either 19 or 29 wires.

A user has just dropped off his laptop reporting that the screen is very dim and it's difficult to make out the icons on the desktop. When you plug in an external monitor to the system, it brings up the desktop perfectly. Which of the following needs to be replaced? - The external monitor - The LCD inverter - The LCD panel - The VGA card

LCD inverter. The LCD inverter is likely not supplying voltage to the backlights (CCFLs) and will need to be replaced.:The external monitor was there to help us diagnose this malfunctioning laptop. And it did its job pefectly.While the LCD panel may seem like a good answer, it's probably not the BEST answer. We can still see the icons—they are just very dim and hard to make out. It's more likely a problem with the backlights or the inverters that power the backlights.The VGA card is working just fine, if it wasn't, we would have had nothing on the external monitor we connected.

My Windows 7 laptop screen suddenly becomes garbled whilst I am working. I connect to another known good monitor to the video out port on the machine. The new monitor is still garbled. Which laptop component should I suspect? Laptop backlight Laptop screen Laptop power supply Laptop video adapter

Laptop video adapter Since the laptop's display and an external monitor are displaying the same output, it is likely that the laptop video adapter has failed. These are replaceable and even upgradeable, depending on laptop age and the budget.

A technician obtains a maintenance kit that contains a fuser, transfer roller, and pickup rollers to perform maintenance on a printer. What type of printer will they be maintaining? - Impact - Inkjet - Laser - Thermal

Laser The transfer roller is used to transfer the image created in toner to the paper. A laser printer is the only printer that will use toner to create the image on paper. Impact printing does not use a transfer roller, nor does thermal or inkjet.

What type of printer uses an imaging drum? - Impact - Inkjet - Laser - Thermal

Laser Laser printers use lasers to charge the surface of the imaging drum in the shape of the image to be printed.

A user working on a presentation needs to print several color copies of the same contract to go to various departments and customers. Which of the following printers will be the QUICKEST? 3D printing Impact printing Laser printing Thermal printing

Laser printing Laser printers produce a high quality and high speed output of both text and graphics. They are available in monochrome and color printing. Although other technologies can provide color printing, laser is the faster of the technologies.:3D printing supports color, but is not a quick printing process.Thermal also supports color, but it is slower than laser printing.Impact printing is generally monochrome, and much slower than laser.

Which of the following components would be most useful in building a silent gaming PC capable of overclocking? Liquid cooling system Low-RPM fans Passive cooling system Thermal paste

Liquid cooling system A liquid cooling system enables users to overclock their PCs to extreme speeds without adding any obnoxious fan noise.:Passive cooling systems are most often found in slimline PCs or lower-powered home theater PCs.Thermal paste is used in every cooling system. This choice isn't specific enough.Low-RPM fans are quieter than their quickly-spinning counterparts, but they're not as quiet or as effective as a liquid cooling system.

Today's portable computers invariably use which of the following battery technologies? - Alkaline - Lithium Ion (Li-Ion) - Nickel Cadmium (Ni-CD) - Nickel Metal Hydride (Ni-MH)

Lithium Ion (Li-Ion) Nickel Cadmium (Ni-CD) and Nickel Metal Hydride (Ni-MH) are earlier technologies no longer used in portable computers.

What tool could a technician use to test a NIC that is not receiving an IP address? Cable tester ESD mat Loopback plugs Toner probe

Loopback plugs A loopback plug is used to perform a loopback test, which checks a NIC's connectivity.Incorrect Answers:An ESD mat is used to prevent static discharge when working on electronics.A cable tester tests the status of networking cables.Toner probes are used to find the port on a switch or patch panel that a particular cable goes to.

Which of the following could be detrimental while flashing the BIOS? Low humidity High humidity Application of power Loss of power

Loss of power Losing power while flashing the BIOS could cause permanent problems with the computer. Some computers switch into standby mode after a certain time period. Be sure to disable standby mode before attempting a BIOS upgrade.

You are configuring a new wireless router for a SOHO network and you want to ensure that only specific client machines can connect. What should you use? - DMZ - MAC filtering - Port forwarding - WPS

MAC filtering (What if encryption had been one of these options?) Looks like you want to turn on MAC filtering and set yourself up a whitelist. Now only the machines YOU decide on get to connect to the network.:Port forwarding forwards packets to a specific IP address based on a specific port that you configure. This is used for practically any application that needs to connect directly with other users on the Internet.Wi-Fi Protected Setup (WPS) is a wireless computing standard that enables a user to simply press a button on a wireless device so that it can easily join a WPS enabled Wi-Fi network. This standard is frequently used with Wi-Fi printers.A Demilitarized Zone (DMZ) is a feature that can be enabled routers. Think of what is happening for port fowarding and then apply that knowledge to all 65,536 ports on the Internet. Feeling vulnerable yet? You should.

Which of the following WAP features prevents unauthorized computers from joining a wireless network? - Disable SSID - MAC filtering - Port forwarding - Wire encryption

MAC filtering MAC filtering enables you to either block computers based on their MAC addresses, or else only allow certain MAC addresses to connect.Incorrect Answer:Wire encryption is not a thing.Disabling the SSID is also good, but it's nowhere near as effective as MAC filtering.Port forwarding is used to enable applications to send and receive data over the Internet.

A client's PC will no longer boot following the annual test of a company's back-up generator system. When the client attemps to turn on the system, the display receives no output. Upon arrival, the technician also notices there are no POST beep codes when turned on, however, the system's fans do begin to run after turning on. The client describes the fans as being louder and faster than normal. Which of the following is the MOST likely issue? - MOBO damaged by the power test - RAM was damaged by ESD - The PSU no longer functions due to damage - The power test erased the HDD

MOBO was damaged. The motherboard is not working, because there are no beep codes.

How can a technician limit access to a SOHO wireless network based on a computer's NIC? - DHCP - Encryption - MAC filtering - SSID broadcast

Mac filtering ("Based on a computer's NIC") MAC filtering determines which computers can join a SOHO based on the PC's MAC address.:Encryption limits access by making it necessary for users to know an encryption password. Disabling SSID broadcasting just makes it more difficult for others to discover the network. It doesn't do anything to prevent anyone from joining the network.DHCP is in charge of passing out IP addresses.

You are creating a PC for a client that uses CAD/CAM applications. What are the most important things to consider when creating this computer? (Select two.) - Gigabit NIC - HDMI Output - High-end audio output - Maximum RAM - Powerful processor

Max RAM Powerful processor You need power! Get a powerful CPU and max out your RAM as much as possible so you can handle those hardware intensive CAD/CAM applications. A gigabit NIC wouldn't be the most important thing to have for CAD/CAM. That's just your connection to the network. It isn't essential for CAD/CAM applications.You won't necessarily need HDMI output. That is more designed for HTPC setups. You can get away with DVI, or maybe even VGA.Jamming out to your favorite Justin Bieber songs isn't necessary for a CAD/CAM station. So you don't need high-end audio output.

Which of the following characteristics would you look for in a virtualization server? (Select two.) - Dual monitors - Maximum memory - Maximum-core processor - Specialized video card - Surround sound audio

Max memory Maxed-core processor A virtualization server needs as many CPU cores and as much RAM as possible.

Which of the following components would be utilized most in a virtualization server (2)? - Dual-rail 1000w PSU - High-end sound card - High-end video card - Maximum memory - Quad-core CPU

Max memory Quad-core CPU In order to properly manage and run all of the virtual machines, the virtualization server will need to have as much memory as possible as well as a multi-core CPU.:Having a high-end graphics card and high-end sound card is more important for a gaming PC. Those features are not needed in a virtualization server.A dual-rail 1000w PSU would also probably be needed in a gaming computer where you have multiple graphics cards that require a lot of extra power.

What is the maximum storage capacity on FAT-16 system? 504 MB 2 GB 8.4 GB 10 GB None of the above.

Maximum storage capacity on FAT-16 system: 2 GB (Lucky Intuition)

On legacy MOBOs the Northbridge chipset controls the comms between the CPU and wotf (2): Memory AGP bus USB bus IDE controller Serial Ports

Memory - AGP bus The Northbridge chipset controls communications between the CPU, memory, PCI and AGP busses. The Southbridge actually uses the PCI bus to handle the I/O ports, USB and the IDE controller.

You should wear ESD wrist grounding when working on (all): CRT Memory board Hard drive CPU board Cables Monitor

Memory board Hard drive CPU board All components that have OPEN CIRCUITRY are susceptible to ESD by the technician. Therefore, be grounded when touching any boards. (Makes sense. In retrospect, you don't want to be getting into a CRT monitor, anyway.)

You are troubleshooting a desktop computer. You have just removed every component, except for the bare essentials, but the computer still won't boot up. When you turn on the computer, all you receive from the system is a repetitive series of beeps. Which of the following is MOST likely the problem? - CPU - Keyboard - Memory - Video card

Memory. The ongoing series of beeps is the wonderful sound of bad RAM. Swap the RAM out and get some that is working and compatible with your system.Incorrect Answers:The keyboard being bad or disconnected will usually show a prompt on your screen.The video card being bad or disconnected will usually be 1 long beep followed by 2 short ones.The CPU being missing or bad will make your computer just sit there like a rock with power applied to it.

If you bought an ATX case, which of the following motherboard form factors should you purchase? BTX ITX Micro ATX Ultra ATX

Micro ATX Micro ATX motherboards can fit inside ATX cases.Incorrect Answers:BTX and ITX are both non-ATX form factors that don't share a standout layout.Ultra ATX motherboards are even larger than standard ATX motherboards, and can't fit in standard ATX cases.

Your company has responded to an increased level of support calls by allowing employees to handle help calls from their homes on evenings and weekends by accessing the customer database online. The employees are supplied with laptops, wireless routers, and DSL connections at home. All devices were installed and properly configured by professional techs. One employee complains of an intermittent connection. You question him, and determine the issue occurs only just before lunch and before the afternooon popcorn snack. Most likely cause? Microwave oven interference. Accidental closure of network connection while getting ready to take a break. It's normal for networks to slow down during these times. None of these issues are relevant to problem.

Microwave oven interference. Microwave ovens operate in the 2.4 Ghz frequency band and can have considerable impact on network performance. (2.4 GHz? That's good to know.)

Which motherboard form factor allows for low-consumption power supplies? NLX microATX EATX Mini-ITX

Mini-ITX Mini-ITX motherboards are designed for lower-power, small form factor computers. Some Mini-ITX motherboards are designed to be used with 100 watt power supplies.

Which type of interface is typically used for internal wireless networking cards in laptops? USB Mini-PCI Firewire ExpressCard/34

Mini-PCI Most internal wireless network cards in laptops connect using a mini-PCI interface. USB, Firewire, ExpressCard, are external buses for external devices.

What networking device converts analog signals to digital ones? - Hub - Modem - Router - Switch

Modem A modem, or modulator/demodulator, converts analog phone signals into the digital signals needed by the computer. Incorrect Answers:Switches, hubs, and routers are all entirely digital devices.

What kind of connectors are used to connect a PC power supply to a hard drive? - mini-molex - molex - P9 - chamfer - AT

Molex (Mini-molex connectors are for the floppy drive. P9 connectors are for the AT MOBO.)

What is the name of the most common optical SPDIF connector? RCA SC ST TOSLINK None of the above.

Most common optical SPDIF connector: - TOSLINK

Which of the following allows a user to pinch zoom on an Android device? - A trackball - Accelerometer - Micro USB port - Multi-touch

Multi-touch Multi-touch enables mobile devices to recognize input from more than one finger at a time.Incorrect Answers:An accelerometer helps keep track of a device's orientation in space.A Micro USB port enables mobile devices to connect to a PC.A trackball is an input device that uses a small ball to move a cursor, kind of like a mouse.

Which of the following hardware would you use to test to see if your PSU was supplying electricity to the motherboard and all of its peripherals? Anti-static strap CMOS health monitor Device Manager Multimeter

Multimeter The multimeter is the tool used to see the proper voltages coming from the PSU and into the motherboard. It should read 12v, 5v, and 3.3v.:The Device Manager will not let you know the status of your power supply.The anti-static wrist strap is one tools you would actually never want to use around troubleshooting a power supply issue. The last thing you want to do is ground yourself when working around electricity!The CMOS Health monitor is actually not a bad spot to look for the status of your power supply. It should give some interesting figures on it. However, we are looking for a hardware device that we can use to test the PSU, not software built-in to the computer.

Which of the following wireless communication technologies can be described as follows? Has a very limited transmission range, of less than two inches Used with credit cards and passports Slower than other wireless technologies Constantly emitting a signal IEEE 1394 Infrared in diffuse mode Bluetooth NFC Infrared in line-of-sight mode

NFC

Two users would like to share pictures between their mobile devices. Both devices will be in close proximity and the users do not wish to use a third party service and/or another networking devices. Which of the following is the BEST option for this scenario? - IR - NFC - USB - Wifi

NFC Near field communication (NFC) protocols are designed for just such sharing. Used over wireless communication, it allows for data exchange for distances of 4 centimeters or less.:Infrared (IR) will require software.WiFi will require that they are connected to a common network.USB will require cabling.

A customer downloaded and set up a mobile pay service to use with their first generation smartphone. When trying to use the service at a retailer that supports the mobile pay service, the payment service will not work. Which of the following is missing from the customer's smartphone? - Bluetooth - IMSI - NFC chip - RFID

NFC chip. Mobile pay technology uses a Near Field Communication chip. This chip allows two devices to set up a set of protocols that allow communication while in close proximity. Early smartphones did not have NFC chips and are not able to support mobile pay service.:RFID is an electronic tracking technology.Bluetooth does not support mobile pay.IMSI is used to identify the user on a cellular network. It is not used for moble pay.

Which of the following form factors does not have expansion slots on the motherboard, but instead uses a riser card for expansion cards? ATX Micro-ATX NLX BTX

NLX The NLX form factor uses a riser card in the middle of the system board (expansion slots are located on the riser card rather than the system board).

When setting up an LCD monitor, which resolution mode, by definition, provides the best visual quality? - Digital - Native - SVGA - XGA

Native. An LCD monitor's native resolution defines the highest resolution a monitor can support. It is therefore the best picture quality the monitor can achieve. SVGA is the name for the resolution 800 x 600. Digital just means 1s and 0s. XGA means 1024 x 768.

The on-screen display of a monitor indicates the proper video source is selected, but the image will not display. Which of the following issues are the MOST likely reasons? (Select TWO). - No device is sending source video - The backlighting of the monitor is faulty - The monitor's brightness is set too low - The monitor's contrast is too high - The source cable is disconnected

No device is sending source video The source cable is disconnected Always review the basic connections of your system when setting it up. Connectivity is the easiest thing that can cause a problem.:A low brightness setting will not cause the image to not display.Bad backlighting may cause a bad image, but will not cause the image to not display.Improper contrast settings will not cause the image to not display.

What is the first step you should take when replacing a network printer? - Delet all print jobs before replacing printer - Notify all users before unplugging the printer - Save all print jobs, replace the printer, and print all saved files - Unplug the NW printer then notify users

Notify all users. Courtesy. The A+ expects it, too. Also, saving or deleting print jobs isn't really part of the process.

Which of the following displays would provide the BEST range of visible colors? CRT LCD OLED Plasma

OLED OLEDs are able to use LEDs that generate both light and color when supplied a current. This gives the display better perfomance, and a smaller size.Incorrect Answers:Cathode ray tube (CRT) is an older technology.Although modern, plasma screens have a smaller color gamut than OLED.LCD screen technology is also modern, however, since LCDs leak light, they do not provide as good a contrast ratio.

On a computer with DMA mode enabled, the CPU utilization rate will be ___________ when PIO mode is used. greater than lower than equal to two times greater than None of the above.

On a computer with DMA mode enabled, the CPU utilization rate will be ___________ when PIO mode is used. lower than DMA = Direct Memory Access (mode) - A way of a CPU sending out for a task, like an I/O transfer and doing other useful work while the transfer is in progress, and resumes this task when it receives an interrupt request. PIO = Programmed Input/Output. Kind of the same thing as the above, but much slower. Requires processor to arbitrate more transfers between a device and memory.

On motherboards with on-board audio the chipset usually has already embedded the same circuit found on a sound card, needing only a small external circuit called: DAC ADC Codec Crystal None of the Above.

On motherboards with on-board audio the chipset usually has already embedded the same circuit found on a sound card, needing only a small external circuit called: - Codec

A technician has upgraded an internal Wi-Fi card on a laptop and now the signal power to connect to a WAP is low. Which of the following is the most likely cause of the issue? - One of the antenna wires is unplugged - The laptop's battery is dead - The laptop's memory is faulty. - Wi-Fi card drivers aren't installed

One of the antenna wires is unplugged It's very possible that the technician has simply forgotten to connect the antenna wire. It happens to the best of us.

A computer starts up and runs for less than a minute before shutting down or locking up. This is a symptom of: - A bad internal USB hub - A faulty HDD - Incompatible RAM - Overheating

Overheating If a computer is shutting down after a few minutes of operation, that's a good sign that it's overheating. Dust out your computer or get a better heat sink.:A PC with the wrong kind of RAM wouldn't start up at all.A faulty hard drive would prevent you from booting into the OS.A bad USB hub would just make it so that USB devices didn't work.

What type of network is centered around an individual? Cloud LAN MAN PAN

PAN A personal area network, or PAN, is a small network consisting of devices like wireless headsets, cell phones, and music players.Incorrect Answers:A local area network is a small network in a home or office.Cloud refers to services or storage that are not hosted on a local system, but over the Internet.A metropolitan area network is a network that covers an entire city.

Which of the following expansion buses are most commonly used for video cards in modern computer systems? PCI Express PCI CNR AMR

PCI Express The PCI Express expansion buses are most commonly used for video cards in modern computer systems. PCI buses are most commonly used for devices such as sound cards, modems, network cards, and storage device controllers. While you can use PCI for video, better performance is obtained from PCI Express.

Which expansion slot can be found on a desktop computer? - Express Card 34 - Express Card 54 - PCI Express - PCMCIA

PCI express slots can be found in desktop computers, though there is also a miniature form factor that can be found in laptops. Express card and PCMCIA slots are found only on laptops, where other expansion slots are rare.

Which expansion bus is best for high-speed, high-resolution, three-dimensional graphics? VESA Local Bus AGP PCI PCIe

PCIe A PCI Express (PCIe) expansion bus is best for high-speed, high-resolution, three-dimensional graphics. (This Q was also asked on Quiz 5 at GoCertify)

A user sent an e-mail requesting that a technician check if a computer is on and connected to the Internet so the user can log in from home. Which of the following commands in the command prompt would a technician use to verify if the computer is on and connected without having to go to the computer? - IPCONFIG - NETSTAT - NSLOOKUP - PING

PING The PING command will attempt to contact the computer, so you'll know if it's online or not.Incorrect Answers:NSLOOKUP enables you to see domain name and IP information for a computer.NETSTAT enables you to display routing tables and network connections for a particular comnputer. It's a very powerful tool.IPCONFIG displays IP information about your local computer.

What is the name for the routine that tests the motherboard, memory, disk controllers, video, keyboard and other system hardware? BIOS CSST POST CMOS

POST POST stands for power on self-test, and is the routine that tests system hardware on startup. The BIOS chip is firmware (hardware hard-coded with software) attached to the motherboard and is essential in booting the computer. The CMOS battery supplies power to the real-time clock to maintain the date and time.

What would you use to test all of your computer's hardware before you installed Windows 7? Another PC BIOS MBR POST card

POST card A POST card can be installed in your computer and it will ensure that all of your devices are working correctly on bootup.:Another PC won't really help in seeing if your new hardware truly works together. Sometimes having another computer around can be useful for diagnosing piece-by-piece, though.The Basic Input/Output System (BIOS) is a service or firmware that gives your computer the basic instructions to turn on.The Master Boot Record (MBR) is the special section of code located on your boot sector. It is loaded when loading your operating system, such as Windows 7.

Which of the following cable connection types is an example of a mini DIN? - BNC - DB9 - PS/2 - RCA

PS/2 Mini-DIN connectors are small multi-pin electrical connectors commonly used for keyboard and mouse connection. :A BNC is a quick connect/disconnect coaxial connection for cable, and are not multi-pin.RCA is a common audio/video coaxial connection that is not multi-pin.A DB9 is a multi-pin connector, however, it is not a mini Din.

A technician troubleshoots a broken PC only to find that a strong burning odor is coming from inside the case. Which of the following parts most likely experienced a level of electrical burn? - CMOS battery - HDD - Processor - PSU

PSU The power supply unit (PSU) is the most likely thing to experience electrical burn.Incorrect Answers:The rest of the components listed are much less likely to experience electrical burn.

Johan needs to finish a presentation before his plane lands, but the underside of his laptop is scorching his legs. What should he do? Ask the flight attendant for a pillow Nothing. All laptops are warm on the bottom Place the laptop on a hard, smooth surface Put the laptop into sleep mode

Place the laptop on a hard, smooth surface Laptops need a flat, smooth surface for proper airflow.:Nothing, all laptops are warm on the bottom. Most laptops get a little warm, but he shouldn't be burned by one!Ask the flight attendant for a pillow. A pillow is the last thing his laptop needs.Put the laptop into sleep mode. This would cool it down, but then he couldn't finish his work.

Which of the following supports IP telephony devices without requiring external power? - PoE - QoS - VPN - WEP

PoE Power over Ethernet (or PoE) enables networking devices to get their power through an Ethernet cable rather than a power cord.

A customer wants to use VoIP phones without having to plug them into an electrical outlet. Which of the following switch features would a technician recommend? - Gigabit - PoE - QoS - Wake-on-LAN

PoE Power over Ethernet (or PoE) provides electrical power through Ethernet ports. Super handy when there's not a plug nearby. :QoS is a collection of technologies dedicated to providing a stable networking environment.Gigabit is a measurement of network speed.Wake-on-LAN is the ability to wake a computer up from a sleep state by sending a special network packet.

Which of the following is an extra button or knob on a laptop keyboard that moves the mouse cursor? Digitizer Touch pad ExpressCard Point stick

Point Stick (The only answer that works here, but I haven't heard it being called that. Usually trackpoint.) Pointing sticks (also called a trackpoint) are small knobs in the center of the keyboard. Pushing on this knob moves the cursor.

A technician has been dispatched to a customer site to diagnose an issue where the computer turns off intermittently. Upon arriving at the site, the technician detects a smoke smell coming from the computer. Which of the following is the best solution? Install an additional case fan for proper ventilation Power down the system and replace the CPU Power down the system and replace the power supply Remove the side panel for proper ventilation

Power down the system and replace the power supply The power supply, being the part of your computer that is directly plugged into a power outlet at all times, is the most likely suspect if you get a smokey smell coming from your computer. :The CPU can potentially overheat, but modern CPUs have special circuitry designed to shut them down before they start burning. If it's not the power supply, though, it's probably the CPU.Since this is probably a power supply issue, proper ventilation of the case won't help a lot.

You recently told your friend about how amazing Blu-Ray is, so they decided to install a BD-ROM in their PC. After installation, they call you because now their existing DVD-RW and the new drive aren't working. What should you tell them they need to replace? - BD-ROM - DVD-RW - Power supply - SATA controller

Power supply Time to upgrade that power supply unit! Looks like the addition of a new drive just tilted the scale and now your PSU can't power all your devices. Get a 1000-watt PSU... you'll never worry about power again.:The fact that BOTH your DVD-RW and the BD-ROM simultaneously failed is the big clue here. The DVD-RW was probably working just fine before you put the new drive in. And the BD-ROM was brand new. The odds of having to replace that are very unlikely.Replacing the SATA controller wouldn't be the fix here. Most SATA controllers are soldered onto motherboards. How handy are you with a soldering iron?

A computer starts to boot, but then quickly shuts down. Which of the following should a technician use to troubleshoot this issue? - Event logs - Loopback plugs - Power supply tester - Toner probe

Power supply tester Use a power supply tester to make sure your power supply isn't failing. Many early-boot issues like this are due to a failing power supply.Incorrect Answers:A toner probe is used to find the port in a patch panel that goes with a particular cable.Loopback plugs enable you to test your NIC.You can't look at event logs if you can't boot into your OS.

Joe is considering getting into the CAD game. What should he look for in a computer if he's going to be doing computer-aided drafting and 3D modelling? - File streaming, printer sharing, and a RAID array - Powerful processor, high-end graphics card, max RAM - Processor and RAM that meets minimum Windows requirements - Surround sound audio, compact form factor, HDMI output

Powerful processor, high-end graphics card, max RAM CAD and 3D modelling require a high-end, multi-core CPU, a beefy graphics card, and as much RAM as you can fit into the motherboard.:The other answers won't help you much for a CAD computer.

What does DNS do? - Provides automated addressing to resources on the NW - Provides mapping of user friendly names to network resources - Provides remote connectivity to resources on the NW - Provides separate control and data connections between network resources

Provides mapping of user friendly names to network resources. DNS provides easy-to-remember names for computers on a network so that users don't have to remember IP addresses.Incorrect Answers:The other answers don't describe DNS.

Which of the following accurately describes case fans? (2) To reduce dust and debris, they should all be exhausting hot air Only necessary on high-end gaming systems Pull cool air from the front and blow hot air out the back Create a pressurized system inside the case Do not have a specific design for moving air

Pull cool air from the front and blow hot air out the back Create a pressurized system inside the case Case fans create a pressurized system that allows air to flow through the case in a specific way. Intake fans (at the front) pull air inside the case to cool components. Outtake fans (at the back and top) exhaust warm air from inside the case. Because all computers generate heat, case fans are necessary on even basic computers to properly dissipate heat and prevent overheating issues. Even though intake case fans will pull in dust and debris, having all the case fans exhaust air would be extremely inefficient and could cause overheating issues. Case fan filters can be installed if dust and debris is an issue.

Which of the following tools would be used to connect CAT5e cabling to a patch panel? Crimper Loopback Plugs Punch down Tone probe

Punch down A punch down tool presses the individual strands of wire into a patch panel.:A tone probe helps network techs find the port to which a particular Ethernet cord is attached.Loopback plugs help test a NIC.A crimper is used to attach RJ-45 plugs to an Ethernet cable.

Which of the following is the best tool for a technician to use to make sure that network wires are securely fastened in a wall jack? Crimper Punch down Small flat screwdriver Wire strippers

Punch down A punch down tool will securely fasten wires to a wall jack or a patch panel.:A crimper is used to attach RJ-45 plugs onto Ethernet cables. They don't attach wires to wall jacks directly.Neither a screwdriver nor wire strippers will do the job.

Tammy has an iOS tablet. She has filled up her device to maximum capacity with games, music, and pictures. She wants some additional storage. Which would work BEST in helping her get more storage? - Install additional flash memory - Install an external USB HDD - Purchase a new tablet - Restore the device to its default state

Purchase a new tablet. (Apple HATES expandability. Not profitable.) Because this is an iOS device, it works in the closed-source Apple environment. No upgrades for you—buy a new one with more space!:You can't install an external USB hard drive with an iOS-based device. As stated earlier, it's closed source.You also can't install additional flash memory either, sorry!Restoring it to the defaults certainly would free up some space, but it would also trash her existing files. That would not be the BEST situation for Tammy.

What level of RAID increases drive size and access speed WITHOUT providing any type of data redundancy? - RAID 0 - RAID 1 - RAID 10 - RAID 5

RAID 0 RAID 0 is rarely used because, while it usefully increases storage space and access speed, it actually increases the likelihood of losing data due to drive failure. RAID 1, 5, and 10 all provide various forms of data redundancy.

Which of the following options gives the best brief summary of RAID? - RAID is a dynamic logical disk management system - RAID stands for Redundant Array of Independent Disks - RAID uses data striping to reduce hard drive write time and parity bits to reconstruct the data from a failed HDD. - RAID uses multiple hard disks to increase performance and/or provide protection against data loss.

RAID uses multiple hard disks to increase performance and/or provide protection against data loss. The whole purpose of RAID is to increase drive performance and data redundancy.

Which of the following happens during POST? - System RAM is checked - The CMOS setup screen is loaded - The MBR is checked - The OS will load

RAM is checked. Your system RAM is being checked. You can see this if you turn off quick boot in CMOS. Your PC should count all the RAM in your computer.Incorrect Answers:The OS loads after POST.The MBR loads just after POST completes by a service called the bootstrap loader.The CMOS setup screen is only loaded if you press the correct key during POST, usually delete.

What type of connector is used to plug a telephone line into a modem? - RJ-11 - RJ-45 - RJ-10 - COM1

RJ-11 (Wall, to modem. A modem may use the COM1 serial port of a PC, but the telephone line is connected elsewhere)

What type of connector goes between a DSL modem and the wall? LC RJ-11 RJ-45 SC

RJ-11 DSL modems use RJ-11 connectors.Incorrect Answers:RJ-45 connectors go from the DSL modem to the router or computer.LC and SC connectors are used by fiber-optic cables.

Of the following connectors, which would you most likely find on a piece of twisted-pair wire? BNC RJ-45 SC ST

RJ-45 RJ-45 connectors are the only choices that you might potentially find on a twisted-pair wire.Incorrect Answers:BNC connectors are found on coaxial cable.SC and ST connectors are found on fiber-optic wires.

Which of the following could you find on a piece of UTP cable? - BNC - RJ-45 - SC - ST

RJ-45 RJ-45 connectors are used in Ethernet networking.:BNC connectors were found on coaxial cable.SC and ST connectors are found on fiber-optic cable.

Wotf retains the information it's storing when the power to the system is turned off? - CPU - ROM - RAM - DRAM - DIMM

ROM Read-Only Memory is non-volatile.

A user is reporting that her laptop cannot connect to the wireless network from her office, even though she was able to connect yesterday. Which of the following would be the most likely reason? - Channel interference - Radio switch on laptop is disabled - Radio switch on laptop is enabled - User is too far away from the Access Point

Radio switch on laptop is disabled. The radio switch is the bane of laptop users everywhere. It's very easy to accidentally switch the wireless signal off, which many users don't think to look for. Channel interference would most likely result in slower network speeds, not a connectivity issue.Assume that the user was trying to connect from the same location as yesterday.

A client reports that their VoIP phone screen displays a "Duplicate IP address" error. Which of the following is the first action to try to resolve this problem? - Call the vendor - Change MAC address settings - Reboot the phone - Try another LAN connection

Reboot the phone. (Of THESE options, only seems sensible). Rebooting a device is almost always the first thing you should do when trying to fix a problem.:MAC address settings won't have any affect on the phone's IP address.You might have to call the vendor, but that's not the first thing you should do (unless you're starved for even the tiniest bit of human contact).Trying another LAN connection is another of those "do it, but not first" solutions.

A techinician is needs to replace a touch screen on a laptop that supports Windows 8.1. Which of the following is the FIRST step the technician should perform? - Document and label each component upon removal - Recalibrating the LCD screen - Refer to the manufacturer's documentation - Removal of the laptop bezel

Refer to the mfr docs. Laptop manufacturers all have different procedures for screen removal. It is always best to review the documentation from the manufacturer to ensure you don't have any problems with the repair. :Removal will be necessary, but first you must know how to remove the bezel properly.Documentation and labeling is good, but first you must know how to remove the bezel properly.The LCD will not need any tuning until it is installed.

Every 16 milliseconds DRAM must be? Cooled Reloaded Cached Refreshed

Refreshed DRAM, or Dynamic Random Access Memory, was manufactured with capacitors that stored electrical power, but also would fade over time. They had to be constantly "refreshed", and as a result would take longer to process data. Remember, DRAM needs to be refreshed constantly or data will disappear.

Which of the following is NOT a characteristic of active heat sinks? Rely on increased surface area Have an attached fan Used on high-end video cards Used on CPUs

Rely on increased surface area Passive heat sinks rely on increased surface area. Active heat sinks have an attached fan that helps cool off the component at a faster rate. Active heat sinks are used with the following components: CPUs High-end video cards

You have a system that has been overheating. Which of the following actions will not help to keep the system cool? Installing heat spreaders and heat sinks on internal components. Cleaning off the inside of the computer case. Adding thermal paste or a thermal pad between the CPU and the heat sink. Removing the case side panel. Installing a water cooling system.

Removing the case side panel. Removing the case side panel will not keep a system from overheating. The system case has been specially designed to maximize air flow across system components. By removing the side panel, you modify the air flow path and reduce its effectiveness. In addition, removing the side panel allows more dust to accumulate. Dust acts as an insulator and traps heat close to components. Cleaning off the inside of the computer case, installing heat spreaders and heat sinks on internal components, installing a water cooling system, and adding thermal paste or a thermal pad between the CPU and the heat sink are all good ways to help keep a system cool.

A technician is called in to troubleshoot a four-disk RAID 10 array on a high-end Windows 7 Enterprise workstation. One drive has failed. Which of the following should the technician do to fix the problem? - Add a fifth drive and make it a spare - Replace the failed drive and make sure the RAID rebuild successfully - Replace the failed drive and power down the RAID - Reseat the drive and verify the RAID array is healthy

Replace the failed drive and make sure the RAID rebuilds successfully You need to make sure that the RAID rebuilds the drive.You can't just add a fifth drive to a RAID 10 array. A RAID 10 has 4 drives by definition.

A technician is dispatched to a location that has multiple laser printers. One of the network printers is printing what appears to be a shadow image. The technician could solve this issue by: Replacing the drum Replacing the fuser Replacing the NW cable Running calibrate

Replacing the drum A malfunctioning photosensitive drum can cause image ghosting, so replacing the drum might fix things.Incorrect Answers:A broken fuser causes smudged printouts.If the drum is broken, running calibrate won't fix things.Network errors don't cause ghosting.

You have just assembled your first PC. You hit the power button and the computer turns on. As the computer runs through POST, it starts beeping multiple times and you don't see anything displayed on the LCD. You notice there are no activity lights flashing for the HDD. However, we you check the inside of the computer, you can hear the drive spinning up. What is the NEXT thing you are going to check in order to get the PC functioning? - Change the jumper settings to C/S - Replace the LCD with one that functions - Reseat your front panel LEDs - Reseat your RAM

Reseat your RAM. Reseat your RAM. Amongst all the information you were able to gather from this scenario, knowing that it was making multiple beeps is an indication that the RAM is not seated correctly or worse yet... is bad!Incorrect Answers:Changing you hard drive settings to Cable Select (C/S) won't effect your outcome of POST.Replacing the LCD monitor won't change the lack of character on the screen because your RAM still needs to be seated.Reseating your Front Panel LED's, while a good idea considering you don't see hard drive activity, would not fix a no-boot situation like you are in.

A network printer is not printing for any of the users, and the jobs sent are showing in the queus of the local machines. The printer has paper in the trays and the toner cartridge is full. The printer display shows ready on the LCD display. A technician has been able to connect with a laptop to test the network port, and is able to connect. Which of the following should the technician do to get the printer functioning again? - Move the printer to a different port - Replace the NW cable to the printer - Review that the server's print spooler service is running properly - Try to print a test page w/ the laptop connected to the printer directly

Review that the server's print spooler service is running properly. Since the printer jobs are queuing locally, and the printer is showing ready, the failure is likely in the spooler. Incorrect Answers:The cable does not need replacing, as the laptop was able to connect properly.A test page will only confirm the printer's function; it will not allow the users to print.The technician was able to confirm that the port connects to the network properly.

After upgrading a motherboard BIOS of a computer running multiple hard drives, the system will no longer boot to the operating system. Upon boot, it displays "Operating system not found". Which of the following is the FIRST thing the technician should review? Check the hard drive manufacturer in the BIOS Review the boot sequence settings in the BIOS The hard drive jumper settings The MOBO power connection on the HDD

Review the boot sequence settings in the BIOS The BIOS upgrade may have reset the default boot order sequence to the manufacturer's default. Since there have not been any hardware changes, the first thing to review is the updated BIOS settings for the boot sequence.Incorrect Answers:The manufacturer will not determine the boot sequence.The hard drive is being seen, so it has power. It is the operating system that is not being recognized.Hard drive jumper setting cannot be changed by a BIOS update.

An internal laptop keyboard is generally connected to the laptop's system board using which of the following? Mini-molex connector USB connector Ribbon cable PS/2 port

Ribbon cable A laptop keyboard is generally connected to the system board using a flat, ribbon-like cable. PS/2 ports are used to attach external devices, such as keyboards and mice, to older laptops. USB connectors are used to connect external keyboards to a laptop. The power cable for floppy drives uses a mini-molex connector.

For a special project, you have been asked to recommend the lowest profile desktop computers available. You are attempting to put together the specifications for these machines. Which of the following types of cards are attached to the motherboard to allow expansion cards to plug into them instead of the motherboard? Riser Communications and Networking Riser VESA Local Bus PCMCIA

Riser Riser cards attach to the motherboard and have expansion cards plug into them instead of the motherboard. The primary benefit of a riser card is that by installing expansion cards parallel to the motherboard, it is possible to create a low-profile design.

Craster comes into the shop complaining that his laser printer is having trouble picking paper up from the first paper tray. What should a technician replace first? Imaging drum Rollers Toner Transfer belt

Rollers

What device performs network address translation (NAT)? - HUB - Modem - Router - Switch

Router A router can implement NAT to share a single public IP address among several local PCs. A switch just addresses packets based on MAC addresses. It doesn't do NAT.A hub broadcasts packets across a LAN. No NAT here! A modem is used for dial-up Internet.

A technician is about to put a computer back into service that has not been turned on for many months. It was healthy when taken out of service and boots quickly without any problems. Which of the following actions would be a good place to begin computer maintenance? (Select two.) Configure firewall access to the internet Defragment the HDD Run a full anti-virus scan Run anti-virus updates Run Windows update

Run anti-virus updates Run Windows update If you haven't used a computer in a while, make sure to run Windows and anti-virus updates to make sure your computer isn't vulnerable.:You probably didn't get any viruses while your computer was powered down.If the computer is running slowly, then you might want to defragment your hard drive. Otherwise you probably don't need to.You probably don't need to configure the firewall.

Which type of interface is most commonly used for internal hard disks in notebook systems? USB IDE Mini-PCI SATA PCIe

SATA Most laptop internal hard disks use SATA interfaces, however the connectors might be customized for the small form factor of the laptop. PCIe (PCI Express) is a new bus for desktop systems. At one time, most internal hard disks used the IDE interface, but this is no longer true. The bus size is too large for laptop computers. Mini-PCI slots are normally used for wireless devices, not storage devices. USB and Firewire connections are typically external connections.

If you want to securely transfer a large file, what is the best protocol to use? FTP SFTP SSH Telnet

SFTP = (Secure) File Transfer Protocol SFTP combines the transferring ease of FTP with security to keep your files from prying eyes.:Telnet enables you to connect to a remote computer using a text-based interface.SSH is the encryption protocol used by SFTP, but SSH itself doesn't transfer files.FTP isn't secure. At all. SFTP = Secure File Transfer Protocol.

How many pins does a SIMM have? - 50 - 64 - 30 or 72 - 168 - 128

SIMM has: - 30 or 72 pins. (This answer was way too weird to be right. Or rather, way too weird to NOT be wrong.)

New IDE hard disk drives have a circuit called SMART. What is its function? To reduce the noise produced by the hard disk drive. To increase the transfer rate between the magnetic media and the hard disk drive buffer. To detect errors on the hard disk drive before they occur. To monitor the hard disk drive temperature. None of the above.

SMART: To detect errors on the hard disk drive before they occur.

What form factor of memory is found in laptops? DIMM RAMBUS SDRAM SO-DIMM

SO-DIMM SO-DIMMs are a small form-factor type of RAM stick, found primarily in laptops and small desktops.:While SDRAM is often found in laptops, it isn't a form factor.RAMBUS is an outdated technology and is not found in laptops.DIMMs are found in desktop PCs.

Which of the following components must be installed while a laptop is completely powered off? Express card 54 device PCMCIA device SO-DIMM chip USB expansion hub

SO-DIMM To install SO-DIMM RAM chips into a laptop, you must turn the laptop off.Incorrect Answers:PCMCIA cards, Express cards, and USB hubs can all be installed while the laptop is running.

Which of the following types of Ethernet should be used if a technician has no choice but to run cable along fluorescent lighting arrays in a suspended ceiling?Cersei the technician has to run Ethernet cable along some florescent lighting arrays in a suspended ceiling. What type of cable should she use? - PVC - RG-6 - STP - UTP

STP. Shielded twisted pair cable should protect the data from interference from the florescent lights. :RG-6 cable is the type that you usually use to hook up your cable box.It's possible that Cersei will use PVC STP cable, but the PVC aspect has nothing to do with the info in the question, since PVC is simply the usual coating for Ethernet cable.UTP cable might be subject to interference from the lights. No good.

Which one from the list below is the sampling rate used by CD players? 20,000 Hz 22,000 Hz 38,000 Hz 44,100 Hz None of the Above.

Sampling rate used by CD players: 44,100 Hz Knew it! I've seen this on CD's before, as well as it being the default audio sampling rate in Audacity.

What is a common way to calibrate a barcode reader after installing it? Adjust jumper switches Enable the code reader in the BIOS Scan in program codes Use device manager to enable the I/R ports

Scan in program codes Many barcode readers come with a set of program codes that help calibrate the device. You don't need to enable the reader in BIOS, enable I/R ports, or adjust jumpers.

Which of the following tools and test equipment is routinely magnetized and should be used with caution around magnetic media? - Cable testers - Pliers - Power supply testers - Screwdrivers

Screwdrivers (Thanks to personal experience in the tech area. I almost went with power supply tester, but that magnetizing what goes into sockets might be a bad idea. And pliers was almost a pick, but they're not magnetized as often as screwdrivers.) Screwdrivers are sometimes magnetized to make it easier to keep the screw on the end of the screwdriver.:A power supply tester is used to make sure that a power supply is working correctly. It shouldn't be magnetized.Cable testers are used to test for resistance and continuity in Ethernet cables.Pliers aren't usually magnetized.

A company has a network printer that is utilzed by several departments. Although the printer shows online and other departments can access the printer, the accounting group is unable to print to this network printer. Which of the following would the technician use to resolve the problem? - Replace the NW cable on the printer - The printer needs a maintenance kit replaced - Security settings for the print spooler must be modified to include the department - The TCP/IP spooler service needs to be restarted

Security settings need to be modified to include the department Other departments are accessing it just fine. The printer is working for other departments; no maintenance is needed.Other departments are accessing the print spooler without difficulty; the spooler is working properly.

What is Serial ATA? A hard disk drive interface. A new serial port standard. The transfering method used on SCSI hard disk drives. An extension to the USB bus. None of the above.

Serial ATA: A hard disk drive interface.

A Word document is printed from the printer icon on the Word toolbar. However, the document prints to the wrong printer. How can this be fixed (2)? Set the appropriate printer as the default printer. Close the document and save it as a print file. Word can only access one printer. From the Printers Folder configure more than one printer as the default. Select print from the File menu in Word and choose the right printer.

Set the appropriate printer as the default printer. Select print from the File menu in Word and choose the right printer. When using the printer icon from the toolbar of an application, the job will be sent to the default printer. When printing from the File menu in an application, you get to choose from all installed printers which one you want to use. Remember, only one printer can be set as the default and you can change which printer that should be.

2 methods for recovering from a forgotten BIOS password are: Flashing the ROM BIOS. Shorting the CMOS with a jumper. Pressing F8 during bootup and choose Safe Mode. Replacing the motherboard BIOS. Removing the CMOS battery.

Shorting the CMOS with a jumper. Removing the CMOS battery. BIOS passwords are stored in the CMOS chip. Either removing the battery temporarily or using a jumper to short it will erase the current password and so allow you to create a new one. However, keep in mind that these steps will erase the entire contents of the BIOS, not just the password. (4tests.com)

Which of the following components is the most important in a workstation used for 3D graphics work? - Multi-core processor - Specialized video card - Tape backup drive - TV tuner/recorder

Specialized video card 3D workstations require a high-end video card to make rendering and modeling quicker.:A multi-core processor is also good, but it's slightly less important than a good video card.TV tuners and tape backup drives aren't important in a 3D workstation.

An Internet browser's cookie could be classified as which of the following? Phishing Rootkit Spyware Worm

Spyware Cookies can be used to track your Internet browsing behavior, and, as such, can be used as spyware.Incorrect Answers:A rootkit is malware that hides itself from the usual detection methods. They're damaging and hard to find, but cookies are not rootkits.Phishing is the act of using e-mail to pretend to be a trusted authority in the hopes of obtaining sensitive information voluntarily from victims.A worm is a piece of malware that replicates through networks.

Which setting has the highest possibility of resulting in an IP address conflict? - Custom DNS address - QoS enabled - Static IP address - UPnP enabled

Static IP addresses. Setting static IP addresses on a network can result in duplicate IPs if the network tech isn't paying attention.Incorrect Answers:Setting a custom DNS address won't result in an IP address conflict.QoS doesn't cause IP address conflicts.Universal plug and play has nothing to do with IP addresses, so it shouldn't cause IP address conflicts.

Which of the following features can be configured with keyboards to assist users with disabilities? - Character map - Magnifier - Pointer trails - Sticky keys

Sticky keys. (Magnifier? You mean glasses? That's not really a disability. But I digress. 'Configured with keyboards' is the operative phrase.) Sticky keys makes it so that a user doesn't have to press more than one key at a time in order to do keyboard shortcuts.:Pointer trails make it easier to track the movement of the mouse pointer across the screen.The magnifier feature enables users with visual impairments to more effectively use a computer.The Character Map is a huge list of all the special characters that your system is capable of displaying.

A user updates their video driver on their system. Upon restart, the system will not complete loading Windows; it falls into a reboot cycle. What should a technician use to quickly resolve this issue without losing personal files or programs? - Emergency Repair Disk - Restore from backup - Restore from OEM image - System recovery

System recovery The System Recovery tool will allow you to restore your Windows configuration to an earlier point. When turned on, Restore Points are set to take a snap shot of your Windows system configuration that can be used to quickly restore your Windows, when you have an issue. It will not affect your personal files.:An emergency repair disk backs up Windows related system files and settings.Restoring from the OEM image will cause a loss of personal data.Restoring from a backup generally only takes care of loss of personal data.

If you are able to use FTP, this verifies that which transport protocol is functioning? IP IPX TCP NWLink

TCP Remember, FTP also allows for access in both directions. FTP teams up with Telnet to transparently log you on to the FTP server and then provides for the transfer of files. Accessing a host is only the first step. Users must then be subjected to an authentication login that's probably secured with passwords and usernames placed there by the systems administrator to restrict access. FTP is part of the TCP/IP stack, and since it is connection oriented, it can verify that TCP is functioning.

Which of the following devices is most likely to come standard with a solid state hard drive? Desktop PC Laptop Storage server Tablet

Tablet Tablets frequently use SSDs since they use very little power, take up very little space, and are very resilient. Incorrect Answers:The other answers might have SSDs, but they rarely come standard with them.

When you boot the computer, it hangs after asking you for the current time and date. What is the most likely problem? Daylight Savings Time has started or ended. The BIOS is outdated. The computer needs more RAM. The CMOS battery has failed

The CMOS battery has failed The system Time and date are managed by the Real Time Clock (RTC) in the BIOS. If the CMOS memory battery goes dead, the RTC reverts back to a default date and time.

You turn on your computer and you get a "Date and Time Not Set" message on the screen immediately after the manufacturer's logo. What is the most likely cause of this message? The PC was incorrectly shut down The CR-2032 battery needs to be replaced The OS has stopped sync'ing with the time server The system BIOS is corrupted

The CR-2032 battery needs to be replaced The technical name for a CMOS battery is a CR-2032. You can pick them up cheaply at your local Radio Shack or electronics store. When you see the message, "Date and Time Not Set," it usually always points to the CMOS forgetting what time it is because its battery has run out of juice. Get a new one and you'll be good to go!:If you incorrectly shut down your computer, you'd get a message stating something about how Windows experienced an improper shutdown and now needs to do some CHKDSK scans to make sure your files are intact.While it may be possible that your operating system isn't syncing up with the time server, we haven't even gotten to a place to view the operating system. We're still trying to get past this bootup error message.The BIOS is most likely not corrupted. This is an error message due to a failure in the CMOS battery.

Twenty Windows 7 laptops must have their memory upgraded from 2 GB to 4 GB. Some of the laptops use DDR2 and some use DDR3. The memory purchased for the upgrade was all DDR3. What will most likely happen during this upgrade? - The DDR2 memory will fit in the DIMM positions and work. - The DDR2 notebooks will work with DDR3 provided the DDR2 is installed in the first DIMM positions - DDR3 memory will not work correctly unless the CAS (CL) values are the same. - The DDR3 notebooks are the only ones that will accept the new memory.

The DDR3 notebooks are the only ones that will accept the new memory. DDR3 RAM will only fit into PCs designed to accept it. You can't install DDR3 RAM into a DDR2 slot.Incorrect Answers:The other answers don't describe the process of upgrading laptop RAM.

What connector would you use to connect a video card to a power supply? - 20-pin - 8-pin 12 volt - PCIe 6-pin - SATA

The PCIe 6-pin connector plugs into higher-end video cards. Some video cards require two of these connectors! The 8-pin 12 volt connector plugs into the motherboard to provide additional power to the CPU. The 20-pin, or P1, connector provides power to older motherboards. It has been largely replaced with a 24-pin connector.SATA connectors are for, you guessed it, SATA drives.

A technician receives a report from a client that is having issues with colors on a monitor. The technician notices that the monitor does not appear to have any red hues. The technician sees that the monitor has two types of inputs. VGA is currently in use, and the HDMI cable is not. The technician powers down the system and switches from using the VGA cable to the HDMI cable and the issue is resolved. Which of the following was MOST likely the issue? HDMI was the original display configuration The monitor did not support VGA output The VGA cable had damaged pins The video card drivers need to be updated

The VGA cable had damaged pins Since the HDMI cable resolved the issue, the cable was damaged.:Display configuration will adjust when a new type is connected.The VGA cable had already been in use.Since the cable resolved the issue, the drivers were not outdated.

Which one from the list below is the connector type used by the coaxial digital output (SPDIF Out)? P2 RCA RJ-11 CD In None of the Above.

The connector type used by the coaxial digital output (SPDIF Out)? RCA (Just made most sense)

Which of the following choices is true of an asynchronous digital subscriber line connection? The data download speed is faster then the data upload speed The data throughput speed direction can be selected based on the user's discretion The data upload speed is faster than the data download speed The data upload speed is the same as the data download speed

The data download speed is faster then the data upload speed. (Isn't this true of pretty much every type of Internet connection? Why, yes it is!) As with basically every type of Internet connection, ADSL connections have faster downloads than uploads.Incorrect Answers:The other answers don't describe an ADSL connection.

In order for a digitizer to work properly upon installation, which of the following is required? - The digitizer must be calibrated - The digitizer must be cleaned - The digitizer needs to connect to the internet - The digitizer requires the latest software updates

The digitizer must be calibrated. (Woo! I thought about the first time I touched an original DS. This was the first thing I had to do in setup.) A digitizer transfers all of the touch function from the device to the LCD. When installed, the digitizer requires calibration so it can determine, when the screen is touched, where to signal the operating system the location of the touch on its grid.:Digitizers do not require internet connection.Digitizers do not require maintenance cleaning.Digitizers do not require an update.

You are installing an updated driver for a hardware device on your system. A dialog box displays indicating that Microsoft has digitally signed the driver you are installing. What benefits does driver signing provide? (Choose two) The driver being installed is the most recent driver available. The driver will not interfere with other devices on the system. The driver has been tested by Microsoft. The driver file has not been altered. The driver being installed is compatible with 32- and 64-bit versions of Windows.

The driver has been tested by Microsoft. - The driver file has not been altered. A Microsoft digital signature is your assurance that a particular file has met a certain level of testing, and that the file has not been altered or overwritten by another program's installation process. Unfortunately, this testing cannot completely eliminate the possibility of drivers interfering with each other, nor can it ensure that the most recent driver has been installed. Later drivers can be installed, and both the earlier and more recent drivers may carry digital signatures from Microsoft. Typically, separate drivers are provided for 32- and 64-bit versions of Windows. (Also re-asked in quiz 5).

A user states that their old notebook loses connectivity to the Internet several times a day at work and at home. The issue started after the wireless card was replaced. Which of the following items is most likely causing the issue? The drivers for the NIC need to be updated The keyboard is faulty and turns the wireless NIC on and off The MOBO drivers are not current The wireless on/off switch is not in the on position

The drivers for the NIC need to be updated It's possible that the drivers for the NIC aren't working properly, so updating them might help.:The motherboard drivers probably won't have any effect on Internet connectivity.If the wireless switch was set to off, then there wouldn't be any Internet connectivity at all.A faulty keyboard would most likely not cause this problem.

The hard disk drive magnetic surface is divided in concentric circles called tracks, and each track is divided into segments called sectors. What is the name given to the set of tracks that have the same spatial position on all discs present in the hard disk drive? Side Face Cylinder Head None of the above.

The hard disk drive magnetic surface is divided in concentric circles called tracks, and each track is divided into segments called sectors. What is the name given to the set of tracks that have the same spatial position on all discs present in the hard disk drive? - Cylinder (Hardwaresecrets.com)

Analog audio is usually represented by voltage relative to time. Therefore, we can state that the higher the analog signal amplitude, the higher: The volume of the sound. The sampling rate. The signal-to-noise ratio. The frequency. None of the Above.

The higher the analog signal amplitude, the higher: - The volume of the sound.

You are troubleshooting a laptop that was just recently diagnosed with trouble holding power. When you turn the laptop on to troubleshoot, you notice that even while connected to the AC power adapter, the laptop will still use battery power. What could be causing something like this to happen? (Choose two.) The battery is incompatible with the laptop The internal power circuitry on the MOBO is faulty The LCD's power inverter is malfunctioning The power adapter that plugs into the wall is malfunctioning You have selected a power scheme in your OS that disables charging

The internal power circuitry on the MOBO is faulty The power adapter that plugs into the wall is malfunctioning The internal power circuity and the power adapter are the two pieces to this mystery that need to be checked out. Either one could be at fault, or worse... both!:If the LCD's power inverter was malfunctionng, we would have a working laptop, we just wouldn't see anything on the laptop's screen.There is no power scheme in your OS that will disable battery charging.The battery being incompatible with system is unlikely. Laptops always come with a battery when purchased. Batteries are also very proprietary to the unit they are meant for.

A client is having problems with the back cover to their cell phone. It always comes off, and is difficult to seat properly when putting it on the phone. Which of the following is MOST likely the problem? A bent charging port is preventing it from seating MicroSD card is not inslalled properly The battery is preventing it from seating The phone has a replacement non-OEM cover

The phone has a replacement non-OEM cover A non-OEM replacement cover is the likely cause.Incorrect Answers:MicroSD cards are generally ports that are on a side of a device, and would not interfere with the cover.The battery are all interior on a device, so they would not cause issues with the seating of the back coverCharging ports are internal ports that would not interfere with the back cover.

A user is complaining that nothing happens when he tries to print to a shared printer, even though the printer is powered on. What is most likely the cause of the problem? - The ISP service is currently unavailable - The print server does not have network connectivity - The printer is low on toner - The user's print drivers are corrupted

The print server does not have NW connectivity. The answer to about 90% (a rough, completely made-up estimate) of network printer problems is "the printer has no network connection." Do yourself a favor and check that first.:You're not sharing a printer over the Internet, so your ISP has nothing to do with it.It's probably not a corrupted driver issue. Network issues are far more common than driver issues.If the printer was simply low on toner, it would at least try to print or give an error message.

Alex has just purchased a new 802.11n Wi-Fi router for his home. He powers it up and configures it. He then proceeds to connect his current 802.11g devices, as well as his brand new laptop. Even though the laptop has a built-in 802.11n antenna, he is still not noticing any speed increase. Which of the following is the most likely cause? - The laptop is not close enough to the router - The laptop needs a dedicated access point - The router is broadcasting a mixed mode - The router should be configured to "G-Only"

The router is broadcasting a mixed mode By default, many Wi-Fi routers broadcast their signal in mixed mode. By broadcasting in mixed mode, the access point portion of your Wi-Fi router will allow any devices that use 802.11b, 802.11g, or 802.11n to connect to the network. The big catch is that by doing this, your network throughput will drop down to the speed of the slowest device. Ouch!:While the distance between the laptop and the wireless router is definitely a factor, there is nothing in the scenario that states the new laptop's position in relation to the router. We are forced to assume that since he hasn't noticed any speed increases, Alex has already tried positioning himself in many different places.If the router is set to "G-Only," then Alex will only get 54 Mbps. The router should definitely not be set to that mode of operation.The laptop does need a dedicated access point. Luckily, Alex bought one. It says that in the first line of this particular scenario. ...?

Where is stored the location of the first cluster of a file? Directory FAT VFAT Inside the file itself None of the above.

The storage location of the first cluster of a file? Directory

A user reports that their PC boots up to a screen that reads "OS not found." Which of the following would be the most likely cause of this problem? - Not enough memory is available - The sys has a BSOD - The user has a USB key attached - There are conflicting operating systems

The user has a USB key attached If the user had plugged a USB stick into the computer, it's possible that the PC is trying to boot to that device instead of the hard drive.Incorrect Answers:There are most likely not conflicting operating systems installed.A lack of memory would not result in an OS not found error.A BSOD probably would not cause a boot error.

Which of the following is the very first layer in transferring heat away from the CPU? Case fan Heatsink Liquid cooling Thermal paste

Thermal paste Thermal paste facilitates heat transfer between the CPU and the heatsink. Without thermal paste, a CPU has difficulty transferring heat across the microscopic gaps in the surface of the CPU and heatsink.Incorrect Answers:A case fan cools the entire system, not just the CPU.Liquid cooling systems require thermal paste, too.CPUs can still overheat with a CPU and no thermal paste.

Arya wants to open an Internet café and is looking to purchase computers so that customers can browse the Internet. What type of computer would you recommend she buy?

Thin clients are great for browsing the Internet, word processing, and not much else. But they're cheap and great for public spaces.

Which of the following processor features is used to dynamically reduce power consumption based on current operating conditions? Multi-core Caching Throttling Overclocking Hyper-threading

Throttling Throttling modifies the operating characteristics of a processor based on current conditions.

I believe my laptop display has failed. What is the FIRST step to isolate the problem on a running laptop? Hook up an external monitor. Restart the machine and watch for the display panel. Toggle the Display Fn key several times to see if the screen comes on. All of these.

Toggle the Display Fn key several times to see if the screen comes on. The laptop's display output can be toggled between using the built in display only, an external monitor only, or to use both. If the output is set to external only the built in screen will appear to be dead. Toggling the switch a few times will cycle through all output modes and isolate the problem.

A client complains that they are unable to connect to a company network. The technician is dispatched to review the problem. The user is plugged into the wall jack, however, there is no connection. The technician troubleshoots the connection between the wall jack and the switch. All cables are plugged into the switch in the network room, however, none of the cables are labeled. Which of the following tools would the technician MOST likely use to find this cable? - Loopback plug - Multimeter - Tone generator - Wifi analyzer

Tone generator A cable plugged into a tone generator sends a tone through the cable that can be detected through a receiver called a probe. :A mulitimeter measures voltage and amperature.A loopback plug tests a port, but will not identify cables to a jack.A WiFi analyzer shows the WiFi channels in your area.

An older network needs to labeled to show where each network connection terminates in a patch panel. Which of the following tools would be BEST for the technician to identify the connections? - Cable tester - Punchdown tool - RJ-45 loopbak plug - Tone generator and probe

Tone generator and probe When a cable is plugged into a tone generator, it sends a tone through the cable that can be detected through a receiver called a probe. The probe can be pointed at each cable on the switch. When the probe touches the cable that is plugged into the tone generator, the tone can be heard through the probe.:An RJ-45 loopback plug is used to test the connection, not to find a cable.A punchdown tool is used to insert wire into a patch panel.A cable tester can only test a cable for electrical connection.

What would a technician use to trace a cable back to its port in a patch panel? Cable tester Loopback plug Multimeter Toner probe

Toner probe A toner probe and tone generator can trace a cable to its port.:A cable tester analyzes a cable's characteristics.A multimeter measures voltage, resistance, and current.A loopback plug tests a NIC's physical connectivity.

Which of the following is the best tool to verify the cable is plugged into the correct port on the patch panel? - Cable certifier - Cable tester - Punch down - Toner probe

Toner probe A toner probe is used with a tone generator to determine which cable is plugged into which port.:A cable certifier is used to certify that a cable run meets the specifications that it is supposed to. (Hunh. So that's actually a thing.) A punch down tool is used to attach cables into a patch panel.A cable tester tests cables for continuity and resistance, making sure that there aren't any broken wires.

A laser printer is producing completely blank sheets. Which of the following processes should the technician check first? - Cleaning - Fusing - Paper handling - Transfer

Transfer The transfer roller is responsible for giving the paper a positive electrical charge, which attracts the negatively charged toner. If that's not working, then the toner doesn't go anywhere. :A non-working fuser just creates smudges.If the paper handling goes awry, then you get paper jams.A malfunctioning cleaning step just makes splotchy or streaked printouts.

Which security measure can be used to generate and store cryptographic keys? Chassis intrusion detection DriveLock BIOS/UEFI password Trusted Platform Module (TPM)

Trusted Platform Module (TPM) A Trusted Platform Module (TPM) is a special chip on the motherboard that generates and stores cryptographic keys. The TPM can be used by applications (such as Bitlocker on Windows systems) to generate and save keys that are used for encryption.

What technology was designed to replace the BIOS and is a firmware solution for controlling the startup process and loading the computer operating system into memory? UEFI BIOS 2 CMOS EEPROM

UEFI UEFI was designed to replace the BIOS and is a firmware solution for controlling the startup process and loading the computer operating system into memory.

What type of connection is necessary to connect a touchscreen LCD monitor apart from DVI and power? - Ethernet - Parallel - SCSI - USB

USB Just like a mouse or keyboard, a touchscreen monitor requires a USB connection in order to accept input.Incorrect Answers:SCSI was a hard drive connector.Ethernet is for networks, silly.Parallel connections are primarily used for hooking up printers after travelling ten years into the past.

A user's laptop has died but the hard drive is still functioning. Which of the following is the best way for the user to still access and edit all of his data? - Burn their data to DVD's - Copy their data to a USB flash drive - USB HDD enclosure - Use a SCSI to USB adapter

USB HDD enclosure Using a USB enclosure, the user can get all of his data safely onto another computer.:You might be able to burn the data to DVD, but not until you get it off the drive using a USB enclosure.The laptop probably doesn't have a SCSI drive.Again, you can't copy the data on to anything until you get that data off the drive using a USB enclosure.

A user needs to install a legacy software on a netbook. Which of the following is MOST likely needed in order to install the software? - Bluetooth adapter - Lightning port - NFC chip - USB optical drive

USB Optical Drive Netbooks are designed to perform most of the functions of a laptop, but are smaller and more light weight. In order to achieve this, optical drives are not installed. Legacy software installs from a CD or DVD drive. :Lightning ports are used to connect peripherals on Apple devices.A Bluetooth adapter is not designed for installation of software.Near field communication is a protocol for data transfer; it is not designed for software installation.

A technician, trying to upgrade the RAM in a laptop, opens the bottom of the case to discover that there is only one RAM slot when there are supposed to be two. Where might the other slot be? - Above the PC card slot - Inside the display bezel - Second HDD bay - Under the keyboard

Under the keyboard. (I thought this would have been where ALL RAM slots on a laptop are.) Laptops sometimes hide the second RAM slot under the keyboard.Incorrect Answers:The other locations usually do not hide a RAM slot

You decided to upgrade your PC with a faster processor. To do this, you ordered a new motherboard over the Internet that supports the processor you want to use. When it arrives, you discover that the motherboard uses the Mini-ATX form factor. Your current case is an ATX mid-tower with a standard ATX motherboard inside. What should you do? - Drill new holes in the Mini-ATX motherboard to match the mounting hole pattern in the ATX case. - Drill new holes in the ATX case to match the mounting hole pattern in the Mini-ATX motherboard. - Return the motherboard and replace it with an ATX form factor motherboard. - Use the Mini-ATX motherboard in the ATX case.

Use the Mini-ATX motherboard in the ATX case. (Knew it! It is still entirely possible for it to fit.) ATX mid-tower cases support all ATX form factors, including Mini-ATX. The main difference between ATX and Mini-ATX is the number of bus and possibly memory slots on the motherboard. The mounting holes for both are located in the same place, making them interchangeable in most cases.

A customer calls you and states that her laptop screen is very dim. In order to avoid going to the client's site, which of the following is the first action you should recommend to the customer to perform? - Go to the Power Options in the Control Panel - Increase the resolution - Reboot the laptop - Use the function keys

Use the function keys Using the function keys enables you to change the brightness on your LCD screen.As this suggestion is easily the quickest and most simple fix among the bunch, you should try it first.:Increasing your resolution will change how many pixels are on the screen. Usually you just want to stick with your native resolution on a laptop, though. Regardless, this won't help a dim screen issue.Rebooting always sounds like a good idea, doesn't it? Well, it can never hurt, but since it takes a bit of time, that might be what I try second, not first.Going to the power options in the Control Panel enables you to change settings for screen savers, standby, sleep, and other ACPI settings.

A technician is installing a new wired router and needs to disable all the ports currently not in use. The documentation for the router mentions the Web interface for the router is available by default at 192.168.1.1. In which of the following ways would the technician go about doing this? - Manually set the IP address to 10.168.1.1 - Place labels on top of all the ports that are not to be used - Use the internet browser to access the router configuration at 192.168.1.1 - Use Windows explorer and search for a file called 192.168.1.1

Use the internet browser to access the router configuration at 192.168.1.1 You can use your Web browser to access a router's Web interface by typing the router's IP address into your address bar.:This isn't a problem that sticky labels will solve.There's no need to set your IP manually.There's no file called 192.168.1.1. That's an IP address!

Which of the following display connections has 15-pins? - Component RGB - DVI - HDMI - VGA

VGA. Component RGB connectors have 3 plugs and are used in home theater connectivity.DVI connectors have 29 pins.HDMI connectors have either 19 or 29 pins, though they're not really visible from the outside of the connector.

A network consisting of numerous geographically dispersed networks that cover a large physical distance is referred to as a: - LAN - MAN - WAN - WLAN

WAN A WAN, or wide area network, is a type of network that covers a large area, spanning more than one city.:WLAN stands for wireless local area network. These do not cover a large physical distance.A LAN is a small, local network.A MAN is a metropolitan area network, or a network covering an entire city. These are larger than LANs, but smaller than WANs.

Of the available choices, which is the least secure form of encryption? AES TKIP WAP WEP

WEP WEP encryption is easily crackable, and is not at all recommended for a network unless there are no other options.:WAP stands for wireless access point, which is the device that sends out a wirelss signal.AES is the encryption algorithm used by WPA2.TKIP is the encryption algoritm used in WPA.

What is the least secure type of wireless encryption? - AES - TKIP - WEP - WPA

WEP WEP, or wireless equivalent privacy, can be cracked in a matter of minutes using current techniques. Don't use it unless your wireless devices don't support anything else. WPA, which uses the TKIP protocol, is more secure than WEP, but it has been replaced by WPA2, which uses AES encyption.

The hard disk drive capacity is defined by its formatting pattern. We call the hard disk drive formatting pattern as: FAT VFAT Cluster Geometry None of the above.

We call the hard disk drive formatting pattern as: - Geometry

Which of the following technology converts light into digital information? Digitizer Inverter Microphone Webcam

Webcam Light produces what we can see, so it only makes sense. The webcam converts light into digital information.Incorrect Answers:Microphones convert waves to digital information. Digitizers convert analog information to digital information.An inverter converts electrical current.

What happens if we install a UDMA/133 hard disk drive using a 40-wire flat-cable? The computer doesn't turn on. The hard disk drive isn't recognized by the computer BIOS. This installation isn't possible. The hard disk drive will work with a transfer rate lower than the maximum rate it supports. None of the above.

What happens if we install a UDMA/133 hard disk drive using a 40-wire flat-cable? - The hard disk drive will work with a transfer rate lower than the maximum rate it supports. UDMA = Ultra DMA (Direct Memory Access) Fastest way to transfer data through the ATA controller The 40-pin ribbon cable is trademark of IDE HDD's.

What is the main difference between Line Out and Speaker Out outputs? Speaker Out output is amplified and Line Out output isn't. Line Out output is amplified and Speaker Out output isn't. Line Out output exists only on 4-channel sound cards, while Speaker Out output exists only on sound cards embedded on the motherboard. Line Out output is digital, while Speaker Out output is analog. None of the Above.

What is the main difference between Line Out and Speaker Out outputs? - Speaker Out output is amplified and Line Out output isn't.

When do you need to upgrade the system BIOS? Whenever installing a new hard disk drive. Whenever you add a new peripheral device, such as a keyboard, mouse, or printer. Whenever a BIOS update provides functionality that is not currently supported but that is required by the operating system or hardware. Whenever the BIOS settings need to be modified.

Whenever a BIOS update provides functionality that is not currently supported but that is required by the operating system or hardware. In general, you need to upgrade the system BIOS whenever the current BIOS does not support a function required by the operating system or by the hardware. Use the CMOS program to change system configuration settings used by the BIOS.

A Windows 7 desktop PC has blue screened several times, indicating a possible RAM problem. Which of the following tools can be used to test this problem? - MSCONFIG - Windows Memory Diagnostic - Windows System File Checker - Windows System Restore

Windows Memory Diagnostic The Windows Memory Diagnostic tool diagnoses memory problems. Incorrect Answers:System Restore just restores Windows to a previously-set snapshot.The System File Checker makes sure that all of Windows' system files are in proper working order.MSCONFIG is the tool that enables you to set startup programs.

On a laptop, which function key might keep a user from accessing the Internet? - Bluetooth - Screen lock - Volume - Wireless

Wireless If the user accidentally presses the wireless function key, it will turn his wireless NIC off, preventing him from getting Internet connectivity.Incorrect Answers:The screen lock key doesn't exist.The volume function keys control how loud the speakers or headphones are.The Bluetooth function key toggles Bluetooth on and off.

You want to use a wireless printer at home. The printer will be used by two computers in two different rooms. Which interfaces could be used to do this? IEEE 1394 USB Infrared (IrDA) Wireless Ethernet IEEE 1284

Wireless Ethernet You could use an 801.11 wireless Ethernet connection for the printer. 802.11 wireless Ethernet has a greater range than infrared, and will go through walls. The other interfaces are wired interfaces. IEEE 1394 is Firewire. IEEE 1284 is parallel.

Which of the following situations is most likely to require a system BIOS update? You are upgrading a network card. You are upgrading a sound card. You are upgrading a processor. You are upgrading a modem.

You are upgrading a processor. A BIOS update might be required while upgrading a processor or other core hardware. Expansion devices such as modems, sound cards, and network cards should not require a system BIOS update because they interface with the computer through standard bus expansion slots. When installing these devices, you will need to install the correct driver for the device.

You are trying to connecting your laptop to your new 52" LED TV using an HDMI connector. When you connect everything, you immediately noticed that you get video on the screen, but there is no sound. What is the MOST likely cause of this? The HDMI cable you installed doesn't meet specification The speakers in your TV aren't compatible. You need to install a thrid-party application You need to install HDMI audio on your laptop

You need to install HDMI audio on your laptop Go to the Sound applet in the Control Panel and ensure your sound card is using the HDMI to output sound. You probably just need to select or enable it.:Speakers are speakers. They don't care if it's a digital signal or an analog signal. As long as you have the right connectors, you'll be good to go.You don't need a third party application to take advantage of HDMI.All HDMI cables can send video and audio over the same cable.

_________ audio has eight speakers: two on the front, two in the middle, two in the rear, one on the center and one subwoofer. 5.1 6.1 7.1 8.1 None of the Above.

_________ audio has eight speakers: two on the front, two in the middle, two in the rear, one on the center and one subwoofer. 7.1 (Currently the fanciest thing out there.)

The purpose of applying thermal paste between the CPU and heatsink is to: - act as a fire retardant should the CPU overheat - aid in the transfer of energy from the CPU to the heatsink - keep the heatsink firmly in place on the CPU - make the heatsink easier to remove when replacing the CPU

aid in the transfer of energy from the CPU to the heatsink The purpose of applying thermal paste between the CPU and the heatsink is to aid in the transfer of energy (heat) from the CPU to the heatsink itself.:If anything, thermal paste makes the heatsink more difficult to remove depending on the thermal paste you get. There's a reason it's called thermal PASTE.There are no fire preventing characteristics in thermal paste.Keeping the heatsink firmly in place on the CPU is the job of the heatsink's brackets and mounting clips.

Which of the following are sensitive to electrostatic discharge (ESD) damage? a. memory b. CPU c. hard drive d. PC add-on cards e. CD ROM drive f. motherboard - a, b, and f - c and d - d and f - none of the above - all of the above

all of the above

Parity is: - a system for balancing the voltage coming out of the power supply - a byte stored in the FAT to indicated remaining slots - the last setting for controlling hard drive configuration of IDE drives in the CMOS - an extra bit stored with data in RAM that is used to check for errors when the data is read back - the optimal transmission speed of data over a CAT 5 cable

an extra bit stored with data in RAM that is used to check for errors when the data is read back. (Parity can be either odd or even)

What is BIOS an acronym for? - basic input output system - boot initial operating startup - basic input output startup - bootstrap initial operating system

basic input output system

A user wants to extend his computer's storage capacity with external devices. Which of the following storage standards would allow the user to utilize storage externally? (Select TWO). - EIDE - eSATA - IEEE 1394 - PATA - SATA

eSATA IEEE 1394

Which of the following types of cables are MOST likely to be used to connect to an external hard drive (2)? - CAT6e - eSATA - HDMI - Molex - SPDIF - USB 3.0

eSATA USB 3.0 eSATA and USB 3.0 both allow for external connections to a PC that can connect to an external hard drive. HIncorrect Answers:A molex is a connection used to power devices INTERNALLY. SPDIF is an audio connection.HDMI is an audio/video connection.CAT6e is a network connection.

What are the four key functions of a computer system? - input, processing, output, and storage - keyboard, display, memory, and disk drive - word processing, spreadsheets, database, and contact management - read, write, calculate, and display - bits, bytes, words, and OSI

input, processing, output, and storage (The others are either parts, or applications.)

Which of the following connection types can be blocked by a person walking between the two devices that are communicating? A. Cellular ​B. IR ​C. WiFi ​D. Bluetooth

​B. IR (Line-of-sight) (Official CompTIA A+ site)

A company upgraded their cabling from CAT5 to CAT6. A technician is tasked with replacing all the patch cords to match the new cabling. The technician has to make patch cords to the proper lengths. The technician is supplied with the CAT6 cable and a crimper but needs to order the proper cable ends. Which of the following should be ordered? ​A. ST ​B. RJ-45 ​C. SC ​D. RJ-11

​B. RJ-45 (Official CompTIA A+ site)

A laptop is setup at a podium for a presentation but is set to extended desktop. The presenter would like it to show exactly what the laptop screen is showing. Which of the following would be the QUICKEST way to accomplish this? A. Look for the setting in control panel ​B. Toggle the dual display function key ​C. Change the screen orientation D. Reboot the laptop

​B. Toggle the dual display function key (Official CompTIA A+ site)

A technician is building a new PC and notices that it has 8 DIMM sockets labeled 0 through 7. Four are white and four are blue. Which of the following should the technician do FIRST? A. Install the memory in the four white slots ​B. Install the memory in the four blue slots ​C. Consult the motherboard documentation D. Install the memory in slots 0 through 3 E. Fill all slots with memory

​C. Consult the motherboard documentation (This one is popular. It's somewhere on another list) (Official CompTIA A+ site)

A technician has noticed that a client has an unsecured wireless network. Which of the following is the BEST security encryption type to protect the wireless network from intrusion? A. WEP2 ​B. WEP ​C. WPA2 D. WPS

​C. WPA2 (Doi) (Official CompTIA A+ site)