all the sets in 1
Which of the following is a requirement for supporting the Aero user interface?
DirectX 9 or higher
What type of LED monitor provides the most accurate color for video editing workstations?
IPS
A computer is showing the "No boot device found" message even though a technician has verified that the hard drive is set as Device 1 in the BIOS boot order. Which of the following causes is MOST likely at play?
answer = Both PATA devices are incorrectly set to the master jumper setting.
Which of the following topologies would cause the network to be segmented if any one machine went offline?
answer = Bus
a round air duct that helps direct air to the processor
answer = CAG
Which of the following cable types has the MAXIMUM transfer rate of 1 Gbps?
answer = CAT5e
Which type of cable can operate at up to 10 gigabits per second (Gbps)?
answer = CAT6................ why? beause CAT6 cable can operate at up to 10 Gbps in 55-meter segments. It is often referred to as Gigabit Ethernet. CAT6 UTP standards support up to 1000 Mbps at 100-meter segments. CAT6a supports up to 10 Gbps and 250 MHz at 100-meter segments. CAT 7 known as F type cabling supports the same speed and length but up to 600 MHz.
Which of the following standards would be used on a wireless router to support speeds up to 150 Mbps?
answer = 802.11n
Which of the following wireless networking standards can operate at two different frequencies simultaneously?
answer = 802.11n
Which of the following wireless standards is backwards compatible with 802.11g?
answer = 802.11n
In older laptop screens, the backlight is powered by which of the following?
answer = A CCFL lamp
What type of backlighting is also called fluorescent backlighting, and was first used in laptop monitors?
answer = CCFL
Which of the following is the MOST likely light source for a laptop screen? (Select TWO).
answer = CCFL AND LED
What two different file systems can be used on a Compact Disc (CD)?
answer = CDFS and UDF
What cell phone technology is the most popular in the United States?
answer = CDMA
Which new technology protects a CPU from heat damage by slowing the clock rate on the CPU?
answer = CPU throttle technology .......... why? because CPU throttle technology protects a CPU from heat damage by slowing the clock rate on the CPU. CPU throttling is a feature that protects a CPU from heat damage. When a CPU is not cooled properly and the temperature of the CPU becomes high, the CPU throttle technology slows the clock rate on the CPU to prevent further overheating and damage. When the clock rate of a CPU is reduced, it requires very little power to operate, and thus the heat generation is also reduced. The CPU throttling technology also causes the system to operate at a lower speed. For example, if the actual speed of the CPU is 1 GHz, after throttling down the clock rate, the CPU might show only 500 MHz.
A technician is told that a networked computer will PING the loopback address, but cannot connect to the Internet, nor connect to any file shares. The same computer, when plugged into the network at a different location, works fine. Which of the following tools should the technician use to help determine the cause of the problem?
answer = Cable tester
You are responsible for performing all routine maintenance on your company's dot-matrix printers. Which of the following is NOT considered as part of routine maintenance for these printers?
answer = Calibrate the printer.............. why? because Calibrating the printer is NOT part of routine maintenance for dot-matrix printers. Dot-matrix printers do not require any type of calibration. Ink-jet and laser printers require calibration to ensure that the print alignment and colors are configured correctly.
You are responsible for performing all routing maintenance on your company's thermal printers. Which of the following is NOT part of routine maintenance for these printers?
answer = Calibrate the printer............................. why? because Calibrating the printer is NOT part of routine maintenance for thermal printers. Ink-jet and laser printers require calibration to ensure that the print alignment and colors are configured correctly. Routine maintenance of thermal printers includes replacing the paper, cleaning the heating element, and removing debris.
What is the minimum category of UTP cable used with 10BaseT?
answer = Category 3 why? because
The primary hard drive in your Windows computer has failed. You purchase a new hard drive and install it in your computer. What should you do first?
answer = Change the hard drive configuration settings in the computer's BIOS. why ? because You should first change the hard drive configuration settings in the computer's BIOS. This configuration includes the hard drive type, size, and geometry. If your hard drive is not configured appropriately in the system BIOS, the computer will not recognize the hard drive. In most cases, the hard drive settings are automatically configured using CMOS autodetection. The autodetection feature takes the work out of configuring a hard drive.
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).
answer = Change the input mode on the monitor and Toggle the display using the keyboard shortcut
Ann, a small business client, requests a secure SOHO wireless network setup. Ann wants to minimize interference as much as possible from the surrounding businesses yet needs the flexibility for her guests to access the network when authorized. Which of the following would be a feasible solution for Ann?
answer = Channel change
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?
answer = Check if the WiFi antenna is connected properly to the wireless card
Which of the following should a technician do NEXT, if the laptop's internal speakers do not work, after replacing the motherboard due to a video issue?
answer = Check the speaker's connection to the motherboard
RG-59 is a designation for which of the following cable types?
answer = Coaxial
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?
answer = Computer manual
A new secure SOHO is being setup using a wireless network. The users do not want any surrounding neighbors to be able to use this new network. Which of the following would MOST likely need to be configured? (Select TWO).
answer = Configure wireless encryption and Disable SSID broadcast
Ann, a home user, would like to connect her laptop display to her home HD television. Which of the following is the BEST solution?
answer = Connecting the laptop's VGA output to the television's VGA input
Which of the following items describes the function of an inverter module used in a laptop?
answer = Converts DC to AC for the backlight
Which of the following is the BEST tool for a technician to use to make sure the network cable is securely fastened in the RJ-45 connector?
answer = Crimper
A company is receiving a large number of laptop theft reports in the corporate buildings. Which of the following is the MOST cost-efficient way to discourage theft of laptops?
answer = A cable lock
You suspect that an uninterruptible power supply (UPS) is malfunctioning. You need to test the output from the UPS using a multimeter. Which multimeter setting should you use?
answer = AC Voltage................... why? because An uninterruptible power supply (UPS) provides AC power even when it is supplying power from its internal battery. This is true because components that you normally plug into a UPS, such as a monitor, are powered by AC current. However, it is easy to mistakenly associate a UPS with DC current because it contains a battery, which supplies DC current. This is not the case, because circuitry in the UPS takes DC power from the battery and converts it into AC current that monitors and computer systems can use.
Which of the following should be the FIRST items to be removed when replacing the system board on a laptop? (Select TWO).
answer = AC power adapter and Battery
If a device does not receive an IP address from a DHCP server, the device may resort to what kind of IP address?
answer = APIPA
Which of the following features of Windows allows a device to have a default IP address if a DHCP server is not available?
answer = APIPA
A technician needs to extend the wireless signal in a building. Which of the following should the technician use?
answer = Access Point
If the computer you are using is a laptop that moves from one network to another, what tab can be used to configure a secondary configuration, such as a static IP if a DHCP server cannot be reached?
answer = Alternate Configuration
A user reports a loud clicking noise coming from their PC, but the PC operates normally. Which of the following actions should the technician perform FIRST when responding to this issue?
answer = Attempt to backup data from the hard drive
Which of the following 802.11 wireless standards provides the LOWEST maximum theoretical throughput?
answer = B
Windows errors that are caused by problems with devices, device drivers, or a corrupted Windows installation
answer = BSOD
A technician is troubleshooting a laptop LCD monitor with an extremely dim screen. Which of the following is the cause?
answer = Backlight failure
A user's laptop screen is extremely dim. A technician attempts to alter the brightness using function keys and the BIOS, but the screen never changes in brightness. Which of the following is MOST likely the cause?
answer = Backlight failure
A technician is installing a webcam in a nursery for a user to monitor their baby. The user wants to ensure that the webcam is not broadcasting externally. Which of the following would the technician implement on the SOHO router to prevent the broadcast?
answer = Block the outbound port
A customer has a Windows 7 computer with a high-definition DVD (HD DVD) drive. He is asking about DVD compatibility. Which type of disk will he be UNABLE to use in his computer?
answer = Blu-Ray disks. why? because HD DVD drives cannot play Blu-Ray disks. Only Blu-Ray drives can play Blu-Ray disks. Blu-Ray drives can play CD-ROM and DVD disks.
A technician is given a task of terminating a bundle of CAT5 cables that have not been labeled. Which of the following tools will be the BEST to perform this job task?
answer = Crimper, cable tester, toner probe
A laptop is not charging the battery and occasionally shuts off even when the power cord is plugged in. This is a symptom of a bad:
answer = DC Jack
Which of the following should a technician check FIRST on the laptop if the system's battery is not being charged?
answer = DC-in jack
Aaron has just been hired as your new tech support. You are explaining different RAM types to him. Which random access memory (RAM) technology would you tell him fetches 4 bits of data per clock cycle and uses 1.8 V to operate?
answer = DDR2 SDRAM ........................... why? because DDR2 SDRAM uses differential pairs of signal wires to allow faster signaling without noise and interference problems to achieve higher throughput. DDR2 SDRAM uses 1.8 V to operate and fetches 4 bits of data per clock cycle, instead of 2 bits as with DDR SDRAM.
Which CPU cooling method should you implement when convective methods will not work?
answer = Peltier cooling
The first PCS technology used a form of time division multiplexing called ____.
answer = Time Division Multiple Access (TDMA)
A technician must trace a network cable from a user's desk to the punch down block in the wiring closet. Which of the following tools would be the BEST choice?
answer = Toner probe
Which of the following is the BEST tool to verify the cable is plugged into the correct port on the patch panel?
answer = Toner probe
When replacing the CPU in a laptop, which of the following locations should have thermal grease applied?
answer = Top of the CPU
A KVM switch allows you to use one monitor, mouse, and keyboard for multiple computers.
answer = True
A clicking noise coming from a system could indicate that a hard drive is failing.
answer = True
ASCII is one of the supported code charts in Unicode
answer = True
Amplitude shift keying is susceptible to sudden noise impulses such as the static charges created by a lightning storm.
answer = True
By convention, the minimum and maximum values of analog data and signals are presented as voltages.
answer = True
Every installed device requires a device driver to control the device
answer = True
Every installed device requires a device driver to control the device.
answer = True
Examples of real-time applications usually include streaming voice, video, and music.
answer = True
Fiber-optic cable cannot generate nor be disrupted by electromagnetic interference.
answer = True
If you need to recover data off a system that won't boot, install the drive in a working system.
answer = True
It is not possible to connect two local area networks so that they can share peripherals as well as software.
answer = True
Most switches are transparent, which means they learn by themselves.
answer = True
On occasion, a company will create a protocol that, while not an official standard, becomes so popular that other companies start using it.
answer = True
One of the most explosive areas of growth in recent years has been cellular phone networks.
answer = True
One of the primary shortcomings of analog data and analog signals is how difficult it is to separate noise from the original waveform.
answer = True
Switches can be used in combination with routers to further isolate traffic segments in a local area network.
answer = True
Telnet is used to allow a remote user to log in to another computer system.
answer = True
The OSI model tells us what kind of wire or what kind of connector to use to connect the pieces of a network.
answer = True
The SATA drive technology utilizes a serial data path.
answer = True
The ability to separate noise from a digital waveform is one of the great strengths of digital systems.
answer = True
The faster the spindle rotates on a traditional magnetic drive, the better performance it will have.
answer = True
The read/write head on a magnetic hard drive is at both the top and bottom of each disk.
answer = True
The session layer of the OSI model is responsible for establishing synchronization points.
answer = True
The term "Base", such as in 100BaseT, is an abbreviation for baseband signals using a Manchester encoding.
answer = True
True or False: A KVM switch allows you to use one monitor, mouse, and keyboard for multiple computers.
answer = True
True or False: A clicking noise coming from a system could indicate that a hard drive is failing.
answer = True
True or False: Every installed device requires a device driver to control the device.
answer = True
True or False: If you need to recover data off a system that won't boot, install the drive in a working system.
answer = True
True or False: The current release of SMB is CIFS, also called SMB2.
answer = True
True or False: The read/write head on a magnetic hard drive is at both the top and bottom of each disk.
answer = True
What are the two common classes of LCD monitors?
answer = Twisted Nematic (TN) and In-Plane Switching (IPS)
a type of volume that writes data to all physical disk members evenly for the purpose of improving performance
answer = UDF
Which of the following protects your computer from brownouts or sags?
answer = UPS
a device that provides battery power when the main power source goes out
answer = UPS
Ann, a user, calls requesting help selecting a printer connection technology. She wants to connect multiple devices to her laptop docking station using an external hub. Which of the following connection technologies would BEST meet Ann's need for multiple devices?
answer = USB
Alice needs to connect many external devices to her PC. Which of the following expansion cards would enable her to connect the largest number of devices?
answer = USB expansion card why? because A USB expansion card would allow her to connect the largest number of devices. A USB port supports up to 127 devices.
Which characteristic distinguishes IEEE 1394 from USB 2.0?
answer = USB supports more devices on a single bus. why?because The Universal Serial Bus (USB) 2.0 standard supports up to 127 devices on a single bus, whereas the Institute of Electrical and Electronics Engineers (IEEE) 1394 standard supports up to 63 devices on a single bus. The USB 2.0 standard allows data transfer rates of up to 480 megabits per second (Mbps) and the IEEE 1394 standard allows data transfer rates of 400 Mbps. A newer version of this standard, known as IEEE 1394b, allows data transfer rates of 800 Mbps. For comparison, a standard RS-232C serial interface, such as would be used by a dial-up modem, supports a maximum data transfer rates of only 115 kilobits per second (Kbps).
____ systems transmit data over a wide range of frequencies rather than limiting transmissions to a narrow, fixed band of frequencies.
answer = Ultra-wideband
You have begun the process of replacing the CPU in your computer. You must ensure that the motherboard recognizes the new CPU. What should you do first?
answer = Update the firmware............................... why?because You should update the motherboard's firmware to ensure that the motherboard recognizes the new CPU.
You want to enable Hyper-Threading (HT) technology in your computer that has an older processor. When you check the BIOS settings, you observe that the HT option appears dimmed. What should you do to enable the HT option in the BIOS?
answer = Upgrade the processor..................... why? because In this scenario, the HT option is dimmed because the processor installed in this computer does not support HT technology.
Joe, a user, wants to secure his home wireless network and allow only certain devices access to the network. Which of the following measures would be the MOST effective means of limiting access?
answer = Use MAC filtering
Which of the following is the MOST secure method, short of physical destruction, that would be used to ensure that data on a hard drive cannot be recovered?
answer = Use an overwrite program
A customer states their laptop screen is very dim. In order to avoid going to the client site, which of the following is the FIRST action the customer should perform?
answer = Use function keys
The transmission time from when a signal first leaves a satellite and then arrives at a ground station is called ____.
answer = propagation delay
How are IP addresses available to the Internet classified?
answer = public
What two colored RCA connectors in a component video cable are used for audio?
answer = red and white
the number of times a monitor screen is built or refreshed in one second
answer = refresh rate
Which of the following is NOT a solution to an overheating problem?
answer = remove the covers from empty expansion slots
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:
answer = replacing the drum.
You are a desktop engineer for Verigon Corporation. Gloria Taylor requires a PCI network interface card and a PCI sound card installed in her computer. Her computer has three PCI slots, two of which contain the video card and the modem, respectively. Which card should you use to attach both the PCI network interface card and sound card to the computer?
answer = riser card
a component that fits on the bottom of a laptop that can improve charge times and increase time between charges
answer = sheet battery
Which of the following will provide the FASTEST boot times for a laptop user?
answer = solid state drive
Which statement regarding hard drives is incorrect?
answer = solid state drives are less expensive than magnetic hard drives
uses two hard drives to hold a single Windows volume
answer = spanning
a hardware component that facilitates a hardware RAID implementation
answer = storage card
sometimes called JBOD
answer = striped volume
used with a graphics tablet and works like a pencil
answer = stylus
How is the network portion and the host portion of an IP address identified?
answer = subnet mask
SCSI is a ____ interface and not just an interface technique for hard disk drives.
answer = systems
What two protocols are used for remote access to a server, using unencrypted and encrypted transmissions respectively?
answer = telnet and SSH
You administer computers on a Microsoft Windows 2003 TCP/IP network. On the network, you want to use a domain name-to-Internet Protocol (IP) address name resolution system that provides a central database on a server to resolve domain names to IP addresses.Which options should you implement on your network?
answer = the Domain Name System (DNS) ................... why because Of the choices presented, you should use Domain Name System (DNS) for domain name-to-IP address resolution on the network that you administer. DNS provides a centralized database of domain name-to-IP address resolutions on a server or servers that other computers on a network can use for name resolution. On a TCP/IP network that uses DNS, only the database files on the DNS servers must be updated to reflect changes that are made to domain name-to-IP address resolutions.
All of the following steps are necessary to install a TV tuner adapter card in a computer, EXCEPT:
answer = Plug the TV tuner adapter card into a USB port..................... why? because To install a TV tuner adapter card in a computer, you should NOT plug the TV tuner card into a USB port. While there are TV tuners available that plug into a USB port, the USB TV tuner are not adapter cards. Instead, they are external devices that plug into a USB port. A TV tuner card can decode NTSC/PAL signals from an external source.
Which of the following supports IP telephony devices without requiring external power?
answer = PoE
A small business has a Terminal Services server that off-site employee's access. The server is at an address of 192.168.20.10 and the local router is at 192.168.20.1. Which of the following would be the correct entries to enter into the router's port forwarding to ensure that Terminal Services traffic is getting routed efficiently?
answer = Port 3389, Address 192.168.20.10
An administrator has taken steps to secure a SOHO wired network, but as a result the users report that they can no longer access the Internet but can still see other computers on the network. Which of the following would have caused this issue?
answer = Port 80 has been disabled
A computer starts to boot then quickly shuts down. Which of the following should the technician use to troubleshoot this issue?
answer = Power supply tester
Which of the following BEST describes the purpose of an inverter in a laptop?
answer = Provide power to the backlight of the screen
Which of the following is the BEST tool for a technician to use to make sure the network wires are securely fastened in a wall jack?
answer = Punch down
Which of the following tools would be used to connect CAT5e cabling to a patch panel?
answer = Punch down
What type of RAID is a combination of mirroring and striping?
answer = RAID 10
Which type of RAID volume is used for fault tolerance and only requires two drives?
answer = RAID1
After installing a single new RIMM memory module the system fails to start properly or recognize the new memory. Which of the following is MOST likely the problem?
answer = RIMM modules must be installed in pairs.
Which of the following connectors is used to connect a DSL modem to a wall outlet?
answer = RJ-11
Which of the following connector types is used on a CAT5 cable?
answer = RJ-45
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?
answer = Replace the failed drive and verify the RAID is healthy.
After you start your computer, you hear an unusual, high-pitched noise. The source of the noise is the fan mounted inside the power supply. After a few minutes, the noise goes away. Which action should you take?
answer = Replace the power supply.
After you start your computer, you hear an unusual, high-pitched noise. The source of the noise is the fan mounted inside the power supply. After a few minutes, the noise goes away. Which action should you take?
answer = Replace the power supply.................... why? because
What part of a printer pushes forward a sheet of paper from the paper tray?
pickup roller
What is the distance between adjacent dots on a screen known as?
pixel pitch
A technician needs to make several patch cables. Which of the following tools would the technician use to attach the RJ-45 ends to the cables?
answer = Crimpers
A DAT72 tape is also known by what term?
answer = DDS-5
A user on a wireless network has the IP address 169.254.155.2 but cannot connect to the Internet. Which of the following should the user check on the wireless router?
answer = DHCP
Which of the following should a technician configure on a small office home office (SOHO) wireless router so IP addresses are automatically assigned to devices on the wireless network?
answer = DHCP
A computer technician is installing a new wireless router for a small office. The office already has an internal device that assigns addresses to users. Which of the following functions needs to be disabled on the router to prevent conflicts?
answer = DHCP server functionality
A satellite system that has unique properties is the ____ satellite, which is used by governments for spying and by scientific agencies for observing celestial bodies.
answer = Highly-elliptical-Earth-orbit (HEO)
A DSL modem MOST commonly uses which of the following media?
answer = Household telephone lines
Which of the following devices transmits data to all ports regardless of final destination?
answer = Hub
Which of the following provides the LEAST network security?
answer = Hub
Which technology allows a single processor to handle two independent sets of instructions at the same time?
answer = Hyperthreading (HT) technology..... why?
You are replacing an old PCI video card in your computer with a new PCI Express video card. You remove the old video card. You insert the new video card into an available slot and reattach all the cables. However, no display is shown when the computer boots. What should you do?
answer = Reseat the video adapter............... why? because More than likely, you did not seat the video adapter properly when you first installed it. You should first attempt to reseat the video card and reboot the computer.
Last year, your department replaced all of the desktop computers with laptops. Recently, your company adopted a new minimum standards policy that requires a memory upgrade for the majority of the new laptops. Which type(s) of memory could be installed in the new laptops? (Choose all that apply.)
answer = So-DIMM and answer = Micro-DIMM
A user states they have rebooted the printer and it is displaying "PC load letter". Which of the following is the MOST likely cause?
answer = The printer is out of paper.
A technician is trying to install an ExpressCard device for a user. The user's laptop is confirmed to have one spare slot for ExpressCard devices, however, the card is simply too large to fit into the labeled port. Which of the following is MOST likely the issue?
answer = The slot is for ExpressCard/34 devices
In modem interfacing terminology, the modem is referred to as the ____.
answer = data communicating equipment (DCE)
a tool in Windows 8/7/Vista that tests memory
answer = Memory Diagnostics
Which improvements does IPv6 provide over the current IP addressing scheme? (Choose two.)
answer =The IP header options allow more efficient forwarding and less rigid length limits. and answer Some header fields have been dropped or made optional.
Which improvements does IPv6 provide over the current IP addressing scheme? (Choose two.)
answer =The IP header options allow more efficient forwarding and less rigid length limits............... why? because IPv6 (version 6) or IPng (next generation) offers the following improvements over IPv4: IP address size will increase from 32 bits to 128 bits. Some of the header fields have been dropped. Version 6 has less rigid length limits and the ability to introduce new options. Packets will indicate particular traffic type. Support will be provided for data integrity and confidentiality. The IPv6 header is 40 fixed bytes and has eight fields of information. answer = Some header fields have been dropped or made optional. why? because IPv6 (version 6) or IPng (next generation) offers the following improvements over IPv4: IP address size will increase from 32 bits to 128 bits. Some of the header fields have been dropped. Version 6 has less rigid length limits and the ability to introduce new options. Packets will indicate particular traffic type. Support will be provided for data integrity and confidentiality. The IPv6 header is 40 fixed bytes and has eight fields of information.
Joe, a home user, reports that on occasion he cannot print from his laptop to his wireless printer. The problem seems to occur only when Joe is at one end of his home. A technician checks the signal strength of the laptop in that location and finds it to be good. The technician notes that Joe's router is using the default SSID with no encryption. Which of the following could be the issue?
answer =The laptop is picking up another router with default settings.
What type of device do you need if you want to connect two network segments together such as a wireless network and a wired network?
bridge
What kind of printer works by placing toner on an electrically charged rotating drum and then depositing the toner on paper as the paper moves through the system at the same speed the drum is turning.
laser
The ability to send and receive transmissions at the same time on an Ethernet cable is referred to by what term?
answer = full duplex
An interface standard can consist of four parts, or components: the electrical component, the mechanical component, the ____ component, and the procedural component.
answer = functional
a trail left behind when you move the mouse
answer = ghost cursor
If you suspect your system is overheating, how can you determine the CPU temperature?
answer = go into UEFI/BIOS setup and find the temperature monitors for the system
A technician needs to remove the ability of standard users to shut down or restart a shared computer. Which of the following commands can be used to accomplish this task?
answer = gpedit.msc
The three basic components of analog and digital signals are: amplitude, frequency, and ____.
answer = phase
What is the distance between adjacent dots on a screen known as?
answer = pixel pitch
During the charging process of a laser printer, the drum is conditioned by a roller that places an electrical charge of what voltage onto the surface of the drum?
-600V
Match each item with a statement below. -designed to play and possibly record music, photos, movies, and video on a television or extra-large monitor screen -the act of printing to a printer on a network connection -uses a print head that moves across the paper creating one line with each pass -data sent to a printer without any formatting or processing -a type of file similar to a PDF, can be viewed, edited, printed, faxed, emailed, or posted on websites -long-handled brush made of nylon fibers that are charged with static electricity -a type of electrophotographic printer that can range from a small, personal desktop model to a large, network printer capable of handling and printing large volumes continuously -creates a printed page by using some mechanism that touches or hits the paper -a bunch of bits in rows and columns -used to align and/or clean inkjet nozzles, can solve problems when colors appear streaked or out of alignment
-Home Theater PC -remote printing -Inkjet printer -raw data -xps file -extension magnet brush -laser printer -impact printer -bitmap -calibration
Match each item with a statement below. 1)a networking technology that carries more than one type of signal 2)the average of the actual speed of a network 3)a device that helps to eliminate electromagnetic interference (EMI) 4)a device that helps to eliminate electromagnetic interference (EMI) 5)operates at 100 Mbps and uses STP or UTP cabling, rated CAT-5 or higher 6)used to connect a computer to a switch or other network device 7)uses a covering or shield around wire pairs 8)a device that keeps a table of MAC addresses to port mappings 9)a device that amplifies and retransmits signal to a wider coverage area 10)uses ordinary copper phone lines and a range of frequencies on the copper wire to provide Internet
1)broadband 2)throughput 3)ferrite clamp 4)latency 5)fast Ethernet 6)patch cable 7)STP 8) switch 9) repeater 10) DSL
If the startup BIOS can't find a device to use to load the operating system, what error message is likely to appear?
answer = Fixed disk error
Home Theater PCs often make use of what type of user interface?
10-foot user interface
What cable system utilizes a fiber-optic cable?
1000BaseFX
What version of Ethernet utilizes a fiber-optic cable and has a transmission speed of 100 Mbps?
100BaseFX
A SuperSpeed USB port is capable of attaining what maximum data transfer speed?
5 Gbps
Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?
Answer = 802.11a
What wireless methods exist for connecting to a printer? (Choose all that apply.)
Bluetooth & Wi-Fi infrastructure mode & Wi-Fi ad-hoc mode
Involving both software and hardware, what technology is meant to protect digital content and prevent piracy?
DRM
True or False: A 32-bit driver can be used in a 64-bit operating system.
False
True or False: A WLAN covers a large geographical area and is made up of many smaller networks.
False
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? (Select TWO).
answer = Check the memory integrity and Check the PSU integrity
An IBM computer is giving one long beep and one short beep when turned on. The computer does not boot up. What should you do to troubleshoot the problem?
answer = Check the motherboard.
What statement regarding satellite connections is accurate?
It requires line of sight connectivity
What are two examples of HTPC software?
Plex & Kodi
What products are considered to be set-top boxes? (Choose all that apply.)
Roku & Amazon Fire Tv & Chromecast
What DSL technology provides equal bandwidth in both directions?
SDSL
What two standards have been established for wiring twisted-pair cabling and RJ-45 connectors?
T568A & T568B
A printer that utilizes a ribbon that contains wax-based ink is known as what type of printer?
Thermal transfer
True or False: A KVM switch allows you to use one monitor, mouse, and keyboard for multiple computers.
True
True or False: A punchdown tool is used to wire twisted-pair cabling to a keystone jack.
True
True or False: Every installed device requires a device driver to control the device.
True
True or False: For heavy business use, the best practice is to purchase one machine for one purpose, instead of bundling many functions into a single machine.
True
True or False: If loose toner comes out with your printout, the fuser is not reaching the proper temperature and professional service is required.
True
True or False: Laser printers automatically calibrate themselves periodically.
True
True or False: Some advanced printers have print server programs included in the printer firmware itself.
True
What icon might you see in Device Manager that indicates a problem with a device?
Yellow Triangle
What happens when a flash memory card is installed in a slot and it is recognized by Windows?
a drive letter is assigned to the device and you can see it in Explorer
A user reports they cannot access the Internet. The technician has verified the user's browser settings. The user's PC has a static IP configuration. Which of the following is the NEXT step the technician should take?
answer = Check the DNS server addresses and verify they are current.
When installing a new device, which statement is accurate?
a mouse may not require an additional device driver installation
What is a hypervisor?
a program that manages VMs
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?
answer = Check the link lights on printer NIC
A technician is working on an issue and has identified the problem and worked out the cause. Which of the following would MOST likely be the NEXT step the technician should make?
answer = Establish a plan of action
Which is the following is a valid Automatic Private IP Addressing (APIPA) address?
answer = 169.254.2.120.............................. why? because The 169.254.2.120 address is a valid APIPA address. By default, Windows XP and Windows 7 client computers are configured to use an APIPA address if the DHCP server does down. The addresses in the APIPA range are 169.254.0.0 through 169.254.255.255. These addresses are not routable and are therefore only usable on the local subnet.
Which of the following is a private class B IP address?
answer = 172.16.0.1
What is the current maximum storage capacity limit of a magnetic tape?
answer = 185TB
How many layers of data can exist on a single side of a Blu-ray disc?
answer = 2
What TCP port is utilized by an SSH server listening for connections?
answer = 22
Joe, a customer, states that since the new firewall has been installed, he has not been able to send email. Which of the following ports on the firewall should be checked?.
answer = 25
A client has asked a technician about drive sanitation and wants to know what the difference is between overwriting a drive and formatting a drive. Which of the following would be the BEST response from the technician?
answer = "Overwriting writes 1s and 0s to a hard drive replacing the data, while formatting only clears the reference to the data and only overwrites as space is used."
A user reports that their PC does not work. Which of the following would be the BEST question for the technician to ask the user to get further information?
answer = "What exactly does not work?"
When testing a laptop power connector, how close should the voltage measured be to the accepted voltage of the laptop?
answer = +/- 5%
What is the most used rail on a power supply?
answer = +12V
A PCIe 6/8 pin connector for providing auxiliary power to PCIe cards utilizes what voltage?
answer = +12v
Which of the following is an example of a MAC address?
answer = 00-00-00-1B-02-55
Which of the following channels, when used in close proximity to one another, provide the BEST protection against crosstalk?
answer = 1 and 11
How much data can an LTO Ultrium 5 tape hold, native and compressed?
answer = 1.5TB native and 3.0TB compressed
Which IP address is used by a Class A private network?
answer = 10.0.0.0.............................. why? because The 10.0.0.0 address is a Class A IP address for private networks. Private network IP addresses cannot be used on the Internet
Which of the following connector types is only used for Coaxial?
answer = F
A printer that is able to print on both sides of the paper is known as what type of printer?
duplex
What is a basic principle that applies to both internal and external devices?
for most installations, install the device first, then the device driver
What is the unit of information called when a network adapter adds the source and destination MAC address to the segment of data before it is transmitted on the network?
frame
All dual core or higher processors and all motherboards sold today support what technology capable of enhancing the processor support for virtual machines?
hardware-assisted virtualization
What command will display a list of active and inactive network interfaces on Unix, Linux, and Mac OS X?
ifconfig -a
What are valid recommendations for for a high-end audio/video editing workstation? (Choose all that apply.)
install a motherboard capable of using memory running at 1600 MHz or better & Install a sound card
What statement regarding crossover cables is accurate?
it can be used to connect two PCs together
Which statement regarding 10-Gigabit Ethernet is accurate?
it is a good choice for backbone networks
What command manages user accounts on the local system in Windows?
net user
What term describes a dedicated device or computer that can control several printers connected to a network?
server
What tool can you use to stop and restart the Windows print spooler?
service console
Which physical topology uses a centralized device to manage traffic on the network?
star bus
What type of network device keeps a table of the MAC addresses of the devices connected to it?
switch
this is the hard drive. it is solid state and runs off of the south bridge.
the box thing is ?
How do you know if a printer needs routine maintenance?
the number of pages the printer has printed since the last maintenance
What might be the cause of a black screen right after you install a new video card?
the onboard video is not disabled in BIOS
Why are there twists in the wires that are used for network cabling?
the twists reduce crosstalk
what is the white thing ?
the white thing is the heat sink
What two types of thermal printer exist?
thermal transfer & direct thermal
Under what circumstance might you use an Ethernet loopback plug?
to test a network cable
If you are experiencing issues reaching a target destination network, and you need to to display each hop to the destination, what command should you use?
tracert
What part of a laser printer puts a positive charge on the paper in order to pull the toner from the drum onto the paper?
transfer roller
Before replacing an image drum, what should you do first?
unplug it and allow the printer to cool down
What is the first thing you should do to get toner dust off your clothes?
use a can of compressed air to blow off the toner
the black thing is the fan
what is the black thing?
the square thing is the processor
what is the square thing
this is the Display port
what is this
this is the Firewire port
what is this
this is the H . D. M. I.(High -Definition multimedia Interface)
what is this
this is the PS /2 port purple is key board and green is mouse
what is this
this is the S-video port
what is this
this is the S/PDIF (Sony/philips Digital Interface)sound port
what is this
this is the Thunderbolt port
what is this
this is the audio port
what is this
this is the external Sata
what is this
this is the is the v.g. a. (video graphics array)
what is this
this is the modem port
what is this
this is the network port
what is this
this is the parallel port
what is this
this is the serial port
what is this
this is theUSB (Universal serial Bus ) port
what is this
this red cable is the sata data cable
what is this
this is the case fan
what is this?
this is the digital video interface port
what is this?
this is the power suply
what is this?
this is the sata drive
what is this?
In the T568B wiring scheme, what two color pairs are used for transmit and receive on a 100BaseT network?
white/orange, orange & white/green, green
What statement regarding the cleaning of a laser printer is accurate?
wipe the rollers on a laser printer with a dry cloth
What should you never do when working on a laser printer?
work alone
What type of backlighting is also called fluorescent backlighting, and was first used in laptop monitors?
CCFL
If you're looking to install Gigabit Ethernet, what cabling system would you use?
Cat-6
Which type of video port provides a digital-only signal?
DVI-D
True or False: DDR memory is faster than GDDR memory since it is used by the CPU.
False
True or False: Phone cords are a type of twisted-pair cable and use an RJ-45 connector.
False
True or False: Switches are slowly being replaced by hubs, which are newer technology.
False
True or False: The developing, transferring, fusing, and cleaning steps of the laser printing process use the printer components that undergo the most wear.
False
True or False: The official standard for USB interfaces is called IEEE 1394.
False
Which statement regarding the Firewire standard is accurate?
FireWire devices are hot-swappable
What statement regarding the construction of a gaming computer is accurate?
Gaming computers benefit from powerful multicore processors.
What type of printer is slower than a laser printer, and also tends to smudge on inexpensive paper?
Inkjet
What type of backlighting receives DC power directly from a motherboard and doesn't use an inverter?
LED
What network type covers a large campus or city?
MAN
A laser printer can produce better-quality printouts than a dot matrix printer, even when printing at the same dpi, because it can vary the size of the dots it prints, creating a sharp, clear image using a technology known by what name?
REt
What two different types of coaxial cable have been used for cable TV?
RG-6 & RG-59
What does a 1000BaseT NIC use to connect to a network cable?
RJ-45 port
What should you install in a server room that will save space by allowing you to control multiple servers with a single mouse, keyboard, and monitor?
a KVM switch
Which statement regarding the USB standard and USB devices is accurate?
a USB cable has four wires, two for power and two for communication
Match each item 1)assigns an IP address to a computer when it first attempts to initiate a connection to the network 2)a command that can be used to display the TCP/IP configuration 3)a technique designed to conserve the number of public IP addresses needed by a network 4)commonly used by Linux to pass sign-in information to a remote computer and control that computer over a network 5)a protocol used by various client applications when the application needs to query a database 6)designed to make it easier for users to connect their computers to a wireless network when a hard-to-remember SSID and security key are used 7)identifies a computer and the network to which it belongs, such as www.cengage.com 8)protects data by encrypting it from the time it leaves a remote computer until it reaches a server on a corporate network, using a technique called tunneling. 9)A group of computers on a peer-to-peer network that are sharing resources 10)Used by a computer or other device to determine if an IP address of another computer is on its network or another network
answer = 1)DHCP server 2)ipconfig 3)Network Address Translation (NAT) 4)Secure Shell (SSH) 5)Lightweight Directory Access Protocol (LDAP) 6)Wi-Fi Protected Setup (WPS) 7)Fully Qualified Domain Name (FQDN) 8)virtual private network 9)workgroup 10)subnet mask
Which of the following is an example of a Class A IP address?
answer = 10.4.0.1
What is the maximum segment distance for data transmission using 10BaseT, 100BaseT, and 1000BaseT?
answer = 100 meters (328 feet) .................................. why? because 10BaseT, 100BaseT, and 1000BaseT Ethernet use unshielded twisted-pair cable (UTP) as their transmission medium. The maximum transmission distance of UTP cable is 100 meters, or 328 feet. This distance can be increased using repeaters.
A standard Internet mail account receives incoming messages on which of the following ports?
answer = 110
What are the dimensions of an Advanced Technology Extended (ATX) motherboard?
answer = 12 inches wide and 9.6 inches deep................................. why? because The correct dimensions for an ATX motherboard are 12 inches wide and 9.6 inches deep. An ATX motherboard has the processor and memory located at a right angle to the expansion slots so that more expansion slots can be installed easily. An ATX motherboard supports up to seven expansion slots in a combination of Industry Standard Architecture (ISA) and Peripheral Component Interconnect (PCI) slots.
Which of the following is the number of bits that comprises an IPv6 address?
answer = 128
In order to enable the Windows 7 Aero user interface, how much video memory must be available to the video controller?
answer = 128MB
When unable to get an IP address from a server, which of the following represents an APIPA address that a PC might receive?
answer = 169.254.1.111
Which of the following is the subnet mask for a Class C IP address?
answer = 255.255.255.0
You are assessing several computers to decide on a purchase for your company. Which CPU to front-side bus ratio would provide better performance?
answer = 2:1 ............... why? because The 2:1 CPU to front-side bus (FSB) ratio would provide better performance than the other ratios. The smaller the ratio, the more efficiently the processor will operate. When the ratio is high, the processor often has to wait for data to be sent out over the FSB before getting new data to process.
Which rotation speed is not a typical spindle rotation speed for magnetic hard drives?
answer = 3100
If a technician is trying to remote into a computer through a firewall, which of the following ports, by default, MUST be forwarded?
answer = 3389
The Remote Desktop and Remote Assistance applications utilize what port for remote access?
answer = 3389
The frequency range of the average human voice usually goes no lower than 300 Hz and no higher than approximately ____ Hz.
answer = 3400
What wireless networking radio frequency yields faster speeds but offers shorter range?
answer = 5 GHz
A SuperSpeed USB port is capable of attaining what maximum data transfer speed?
answer = 5 Gbps
You need to install several USB devices on a server. You have been asked to attach USB hubs to the computer. Only one USB port is available. How many hubs can you daisy chain using the single port?
answer = 5......................... why? because According to the USB specifications, you can daisy chain up to five hubs. Daisy chaining means that the hubs are attached to each other in a line. While the specification does allow chaining of up to five hubs, you may experience problems configuring more than two hubs in a line.
Which of the following is a public IP address?
answer = 62.10.1.1
Which of the following IP addresses can be pinged from the Internet?
answer = 68.14.24.3
You can connect up to ____ different SCSI devices to one SCSI adapter.
answer = 7
With regards to RAM memory, which speed denotes the fastest memory?
answer = 7 ns
A SATA data cable has how many pins?
answer = 7 pins
Basic Internet web traffic generally travels on which of the following ports?
answer = 80 and 443
VGA mode includes what two resolutions for troubleshooting monitors?
answer = 800x600 and 640x480
Which of the following wireless protocols is limited to operating in the 5 GHz range ONLY?
answer = 802.11a
Which of the following 802.11 standards has the MAXIMUM throughput of 11 Mbps?
answer = 802.11b
What two wireless technologies share the same radio frequency range?
answer = 802.11b and Bluetooth
A technician is tasked with purchasing a wireless router that is backwards compatible with any other wireless device. Which of the following standards should the technician choose?
answer = 802.11n
If you were explaining various RAM types to a new user, which type of computer memory module uses 168 pins?
answer = DIMM why? because Dual inline memory modules (DIMMs) have 168 pins. Some DIMM designs have 72 or 144 pins. These are known as Small Outline DIMMs; normally used in portable computers, they are often referred to as SODIMMs. DIMM modules are eight bytes wide and transfer eight bytes (64 bits) of data at a time. With DIMMs made of older SDRAM (synchronous DRAM) memory chips, the data is transferred once per clock cycle. However, with DDR SDRAM and DDR2 SDRAM, the data is transferred two times per clock cycle: once on the leading edge of the clock signal and again on the falling edge. This allows large amounts of data to be transferred per clock cycle. For example, in a Pentium 4 system with a front-side bus operating at 400 MHz, up to 6,400 MB of data is transferred to and from the DDR2-DIMMs per second. DDR SDRAM comes in 184-pin DIMMs. The total speed is affected by the clock and bus speed supported by the module. For example, DDR 1600 uses a clock speed of 100 MHz with a bus speed of 200 resulting in a total transfer rate of 1600 Mbps. RAM communicates with a register that stores buffered data before it is sent to the CPU. Buffering is mainly used in servers where the electrical demands and loads are higher. For the A+ exam, you must understand buffered versus unbuffered data. Buffered data is stored in the RAM register, while unbuffered data is not. Buffered RAM is also referred to as registered RAM.
Joe, a user, cannot browse on the intranet to a particular web server by using the servername given to him by the administrator. Joe asks a coworker for the IP address of the same server, and is then able to access the webpage using the IP address. Which of the following is the MOST likely cause of the issue?
answer = DNS is not configured correctly.
Involving both software and hardware, what technology is meant to protect digital content and prevent piracy?
answer = DRM
Which DVD specification is natively capable of storing the most data?
answer = DVD+R DL....................... why? because The DVD+R DL specification is capable of storing the most data. It can hold up to 8.5 gigabytes (GBs) of data because it writes to multiple layers on the disc. DVD-RW DL is a double-layer DVD drive that is rewritable, meaning that it can be written to multiple times.
What two optical disc drive standards support writing discs with a total capacity of 8.5GB?
answer = DVD-R DL and DVD+R DL
What two optical disc drive standards allow for rewritable discs?
answer = DVD-RAM and BD-RE
Which type of video port provides a digital-only signal?
answer = DVI-D
When using an HDMI to DVI adapter, what two DVI port types will the adapter work with?
answer = DVI-D and DVI-I
A customer calls and states the new plasma display they just received has yellow spots all over the screen. Which of the following is the MOST likely cause of this issue?
answer = Dead pixels
A user reports that a computer reboots several times a day unexpectedly. Configuration management shows that the machine recently had a second hard drive and a DVD-ROM burner installed. Which of the following BEST describes the troubleshooting steps?
answer = Determine the available wattage offered by the power supply and ensure it meets the power needed for all of the system components.
A laser printer is producing completely blank sheets. Which of the following processes should the technician check FIRST?
answer = Development
A user states that when they power on their computer, they receive a "Non-bootable drive" error. The user works with external storage devices to transport data to their computer. The user stated that the computer worked fine the day before. Which of the following should be checked FIRST to resolve this issue?
answer = Device boot order
Which of the following is a requirement for supporting the Aero user interface?
answer = DirectX 9 or higher
A user is trying to setup a small office home office (SOHO) wireless network and does not want any neighbors to be able to discover the network. Which of the following parameters would MOST likely be configured?
answer = Disable SSID broadcast
A user will be installing a switch in a public location and will allow the six users in the office to connect to it with CAT6 Ethernet. Which of the following actions would BEST ensure that there is no unauthorized access to the switch?
answer = Disable unused ports
Which of the following laptop accessories would MOST likely be used to support multiple displays when the laptop hardware does not have multiple video outputs?
answer = Docking station
Which of the following characteristics is generally found on a docking station that port replicators do not offer?
answer = Docks have independent hardware that replicators lack
A bank is upgrading some clerical users' PCs. Which of the following would be the MOST appropriate method for erasing the data on the old PCs?
answer = Drive degauss
A user reports that his Windows computer often issues errors about running out of virtual memory. You want to increase the amount of available virtual memory. What should you do?
answer = Edit the size of the paging file in the operating system.................................. why? because
Which of the following should a technician do LAST after cleaning up a virus infection?
answer = Educate the end user
A user installed a new SOHO router and new wireless NICs to increase their transmission speed from 802.11b to 802.11g with the manufacturer's default settings. The user lives in an apartment building and is still experiencing slowness to the Internet after the installations. Which of the following is the MOST secure option that a technician could implement to resolve this issue?
answer = Enable MAC filtering
Which of the following steps would allow display output from a laptop to an external display? (Select TWO).
answer = Enabling second monitor in the Windows Display Settings and Press the appropriate Function Key combination
A technician is taking apart a laptop in order to replace an internal part. During this process, which of the following represents a best practice?
answer = Label the screws according to where they came from
A user has installed a new wireless router and is unable to connect their game console to the manufacturer's service. Which of the following should the technician look for FIRST?
answer = Ensure the correct ports are open.
Which of the following cables uses both the T568A and T568B standards?
answer = Ethernet
____ was the first commercially available local area network system and remains, without a doubt, the most popular local area network system today.
answer = Ethernet
A printer is suddenly not printing using Windows XP. Which of the following is the BEST procedure to get the printing restarted?
answer = Examine the print queue, stop and then restart the spooler service.
You are choosing from among several different laptop components. Which of the following operates at the fastest speed?
answer = ExpressCard using a PCIe bus................. why? because An ExpressCard using a PCIe bus will operate at 2.5 Gigabits per second (Gbps). ExpressCard devices come in two types: ExpressCard 34 and ExpressCard 54. These types refer to their sizes. ExpressCard34 cards are 34 mm wide, 75 mm long, and 5 mm thick. ExpressCard 54 cards are 54 mm wide, 75 mm long, and 5 mm thick. They connect using a USB or PCIe port.
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 log in. Which of the following should be checked FIRST?
answer = External antenna switch
A threaded coaxial connector used to connect to a TV tuner is MOST often referred to as which of the following?
answer = F-connector
A technician needs to format a file system to be compatible with the WIDEST range of operating systems. Which of the following file systems should be used?
answer = FAT32
A technician notices that a computer is making a loud clicking noise but continues to run. System speed is barely affected, but they cannot access certain drives. These are the symptoms of which of the following?
answer = Failing second hard drive
A 32-bit driver can be used in a 64-bit operating system.
answer = False
A Molex connector supplies +3.3V, +5V, and -12V voltages.
answer = False
A hub is designed to perform much faster than a switch.
answer = False
Because USB provides a digital interface, it is necessary to convert the digital signals of the microcomputer to analog signals for transfer over a connection.
answer = False
DDR memory is faster than GDDR memory since it is used by the CPU.
answer = False
Hard drives that can be used for hot-swapping cost significantly less than regular hard drives.
answer = False
If you see smoke or smell burning, you should immediately open the case to try to identify the component that is causing it.
answer = False
One of the latest interface standards is the RS-232 interface.
answer = False
One of the major problems with Unicode is that it cannot represent symbols other than those found in the English language.
answer = False
SNMP is used to allow users to send and receive electronic mail.
answer = False
Telephones, AM radio, FM radio, broadcast television, and cable television are the most common examples of analog data-to-digital signal conversion.
answer = False
The 2.5" size hard drive is typically used in devices such as MP3 players.
answer = False
The official standard for USB interfaces is called IEEE 1394.
answer = False
To move a hard drive to another computer for the purposes of accessing the data, you always need to first physically install it in a drive bay.
answer = False
True or False: A 32-bit driver can be used in a 64-bit operating system.
answer = False
True or False: A Molex connector supplies +3.3V, +5V, and -12V voltages.
answer = False
True or False: A problem with virtual networks is that data transmitting through them cannot be encrypted and therefore is not secure.
answer = False
True or False: DDR memory is faster than GDDR memory since it is used by the CPU.
answer = False
True or False: Hard drives that can be used for hot-swapping cost significantly less than regular hard drives.
answer = False
True or False: The 2.5" size hard drive is typically used in devices such as MP3 players.
answer = False
True or False: The Telnet protocol encrypts transmitted data, which therefore cannot be read by others on the network.
answer = False
True or False: The User Datagram Protocol (UDP) guarantees delivery of data to its destination.
answer = False
True or False: The official standard for USB interfaces is called IEEE 1394.
answer = False
True or False: To move a hard drive to another computer for the purposes of accessing the data, you always need to first physically install it in a drive bay.
answer = False
True or False: When using static IP addressing, software automatically configures the network connection on each device.
answer = False
Which of the following cable types is LEAST affected in areas of high EMI?
answer = Fiber
Which of the following cable types would be the BEST option to transmit video 2000 feet (609.6 meters) without the use of a repeater?
answer = Fiber
Which of the following is the BEST type of cable to prevent EMI?
answer = Fiber
Which of the following are characteristics of transferring data using fiber as the medium? (Select TWO).
answer = Fiber can transmit data the farthest distance without requiring a repeater and Fiber is the least susceptible to EMI
Which statement regarding the Firewire standard is accurate?
answer = FireWire devices are hot-swappable
Which of the following network devices uses NAT to convert private IP addresses into public IP addresses?
answer = Firewall
A user states that the display is not very bright on their laptop. Which of the following is the MOST likely location to adjust the brightness?
answer = Fn key
Which of the following precautions should be followed when replacing RAM in a laptop computer? (Select TWO).
answer = Follow ESD procedures and Remove all power
Unicast addresses include what types of addresses? (Choose all that apply).
answer = Global address & link-local address
Which of the following connection types would MOST commonly be found on a laptop to display out to an external monitor? (Select TWO).
answer = HDMI and VGA
transmits both digital video and audio, most common type is the Type A 19-pin
answer = HDMI connector
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?
answer = Hard drive failure
A customer states that another technician just removed some viruses and now they are not able to connect to websites such as Windows Update, but are able to connect to others. Which of the following is the MOST likely cause of the issue?
answer = Host file has been manipulated
Which serial communication standards provide hot-swap capability? (Choose two.)
answer = IEEE 1394................ why? because Universal Serial Bus (USB) and Institute of Electrical and Electronics Engineers (IEEE) 1394 are serial bus standards that allow hot swapping of devices. The term hot swapping, which is also known as hot plugging, refers to the ability to add or remove a device from the bus while the computer is turned on and operational. Older bus standards do not support this feature. Indeed, removing or adding a device while the computer is running can damage the device or the computer. For example, the ATX motherboard has two adjacent PS/2 ports for the keyboard and mouse connectors. If these connectors are reversed, the computer will usually beep and show an error message during the POST routine. If you unplug and reinsert the connectors while the computer is still turned on, you can cause a power surge through a connector and damage the motherboard. A typical response to an error message associated with such a connector reversal would be to press F1, but because the keyboard is connected to the mouse port, pressing this function key will have no effect. and answer = USB................ why because Universal Serial Bus (USB) and Institute of Electrical and Electronics Engineers (IEEE) 1394 are serial bus standards that allow hot swapping of devices. The term hot swapping, which is also known as hot plugging, refers to the ability to add or remove a device from the bus while the computer is turned on and operational. Older bus standards do not support this feature. Indeed, removing or adding a device while the computer is running can damage the device or the computer. For example, the ATX motherboard has two adjacent PS/2 ports for the keyboard and mouse connectors. If these connectors are reversed, the computer will usually beep and show an error message during the POST routine. If you unplug and reinsert the connectors while the computer is still turned on, you can cause a power surge through a connector and damage the motherboard. A typical response to an error message associated with such a connector reversal would be to press F1, but because the keyboard is connected to the mouse port, pressing this function key will have no effect.
What two protocols are used to deliver mail messages?
answer = IMAP4 and POP3
What is the name of the 32-bit or 128-bit number that is used to identify a device on a network?
answer = IP Adress
A technician has a client's laptop that is randomly shutting down. Which of the following is the FIRST step of the troubleshooting theory that the technician will perform to resolve the laptop's issue?
answer = Identify the problem
A technician is tasked with setting up a web server for a small business. Where would the technician place the server so that it is accessible from the Internet while keeping the customer's network separated from it?
answer = In the DMZ
Beth's computer keeps locking up, and she is not sure why. She was told by the intern at her company's help desk that she should reboot her computer often. However she has noticed that the computer freezes when she opens more than two programs at a time. Before she upgrades the RAM, what else can she do to help alleviate this problem?
answer = Increase the size of the paging file......................... why? because Beth could increase the size of the paging file to help alleviate the problem. When systems lock up or there are extended delays between clicks and responses, Windows is demonstrating that it is running out of memory. Seldom are users taught what to do to maintain their computer, so you should help them avoid this situation by keeping track of their page file usage. This keeps them from running out of resources and making their computer run smoothly.
A technician is tracing a cable from a desk back to a patch panel in the wiring closet. The cables are not labeled. Which of the following tools would BEST trace the cable?
answer = Induction toners
A laptop running a Windows operating system has a key that is supposed to launch Internet Explorer, but is not functioning. Which of the following will resolve this?
answer = Installing Hotkey drivers from a manufacturer's website
A technician notices a computer is overheating after 30 minutes of use. Which of the following is the MOST likely cause?
answer = Internal dust buildup
What is the purpose of configuring printer availability on the Advanced tab of a printer's Properties dialog box?
answer = It configures the days and times that a printer is available.
A technician is reconfiguring an email account for off-line mode. Which of the following will describe the expected time of account synchronization with the email server?
answer = It will depend on the time when the account was last synchronized.
Which procedure will help prevent a computer from overheating during use?
answer = Keep the computer cover closed and secured.................. why? because
Which of the following connector types is associated with a fiber connection?
answer = LC
Which of the following laptop display types relies on a backlight for the display presentation?
answer = LCD
Which of the following is LEAST likely to be considered a consumer replaceable part in a laptop?
answer = LCD screen
What type of backlighting receives DC power directly from a motherboard and doesn't use an inverter?
answer = LED
What Intel socket recommends the use of a liquid cooling system?
answer = LGA2011
Which of the following network types BEST represents a network centered around one individual?
answer = PAN
Which RAID level duplicates a partition on another physical disk, providing two identical copies of the data?
answer = Level 1 why? because RAID Level 1, also known as disk mirroring, duplicates the original disk and this duplicate is placed on a separate disk, creating a "mirror." Disk mirroring requires two disks of equal size. It is simple to implement and offers fast recovery if a single disk fails. However, because disk mirroring requires the duplication of the initial partition, only 50% of the total available disk space is used. RAID Level 1 is less efficient when performing disk writes.
Which built-in component of a processor prevents the processor from having to wait for code and data from the main memory?
answer = Level 1 (L1) cache............... why? because The Level 1 (L1) cache is always built into the processor and prevents the processor from waiting for code and data from the main memory. The modern PC processors use two levels of memory caches, named L1 and Level 2 (L2). L1 is a high-speed cache that runs at the same speed as the core. The L1 cache is very fast memory that holds some of the current working set of code and data built into the processor. Since system RAM is slower than CPU, the cache memory reduces system bottleneck. The L1 cache improves the performance of CPU by determining the data required by the processor and constantly retrieving that data from the main memory and fetching the data to the CPU so that the CPU does not have to wait.
____ transmission means that to receive and transmit a signal, each antenna must be in sight of the next antenna.
answer = Line-of-sight
A technician has a computer locked in a cabinet in the office that shares a printer and some files. The computer must remain on. Which of the following Control Panel options would be used to control the users that are able to shut the computer down?
answer = Local security policy
A new application is installed which adds three new services to a customer's PC. The customer asks for help, because the new application will not start. A technician investigates and finds that one of the services has failed to start. They attempt to manually start the service but it fails. Where should the technician look NEXT for more information? (Select TWO).
answer = Log files for the new application and Event Viewer
A technician notices that the PC is not receiving an IP address. Which of the following tools would the technician use to troubleshoot the computer's NIC?
answer = Loopback plugs
Which of the following should a technician configure to limit access to a small office home office (SOHO) wireless network by the computer's NIC hardware identification?
answer = MAC filtering
A user has too many applications starting when they log into windows. From the command line, which of the following tools is the FASTEST option to prevent these applications from running on startup?
answer = MSCONFIG
A technician needs to use Remote Desktop Connection in order to get access to a remote Windows workstation. However, the Programs menu has been hidden and they only have access to the Run command utility or a command-line prompt. Which of the following is the utility that the technician should use to access Remote Desktop Connection?
answer = MSTSC
A customer brings you a computer that he wants to upgrade to SATA drives. Currently, all the drives in the system are EIDE drives. What should you do first?
answer = Make sure that the motherboard will support SATA drives. why? because Most motherboards come with 2-6 internal SATA ports and occasionally an eSATA port. However, older motherboards may not have a SATA port, so your first step would be to check whether SATA ports are available on the motherboard.
Which of the following network topologies would MOST likely be used to provide redundancy at each network device to support data transmissions?
answer = Mesh
Which of the following devices converts digital signals to analog ones?
answer = Modem
____ is the process of sending data over a signal by varying either its amplitude, frequency, or phase.
answer = Modulation
a chip that contains grids of rows and columns with two transistors at each intersection that hold a zero or one bit
answer = NAND flash memory
Which of the following network devices would a client use to store data?
answer = NAS
Which of the following refers to a process of modifying an IP address to allow the device to become hidden and only accessible on a private network?
answer = NAT
Which of the following is true for a 10/100 NIC running at full-duplex?
answer = NIC will simultaneously transmit data in both directions at a time.
Which component on an Advanced Technology Extended (ATX) motherboard supports communication between the central processing unit (CPU) and random access memory (RAM)?
answer = Northbridge chip................. why? becauseThe Northbridge chip (also referred to as the north bridge) supports communication between the RAM and the CPU. It also supports the Peripheral Component Interconnect (PCI) bus, the Level2 cache, and the Accelerated Graphics Port (AGP) port. It provides communication to higher speed devices than the south bridge chip. The Southbridge chip (also referred to as the south bridge) supports slower devices, such as expansion slots, Integrated Drive Electronics (IDE) drives, Parallel ATA drives, and USB ports. It handles all input/output (I/O) functions. The ATA interface is used to connect storage devices to the motherboard, such as CD-ROM drives and hard disks. Firmware is a software program that stores a set of programming instructions in read-only memory to control the desired device functionality.
Which of the following laptop displays would provide physical flexibility and transparency?
answer = OLED
uses a thin LED layer or film between two grids of electrodes
answer = OLED
A technician has upgraded an internal WiFi 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?
answer = One of the antenna wires is unplugged
The International Organization for Standardization (ISO) created the ____ reference model in an attempt to standardize the design of communication systems and the interoperability between their components.
answer = Open Systems Interconnection (OSI)
Which type of address does a hardware vendor assign?
answer = Physical device address ..................... why? because The physical device, or hardware, address is also referred to as the Media Access Control (MAC) address. A MAC address is a unique number that is assigned to a network interface card (NIC) when the card is manufactured. No two computers on a network can have the same MAC address.
An IR printer stops working for half of an office while the other half is able to print. Which of the following should be checked FIRST?
answer = Physical obstructions
Which of the following display types may be practical for a laptop format, but has limited uses due to heat considerations?
answer = Plasma
You want to upgrade the memory on a laptop. You unplug the AC adapter and remove the battery. What should you do next?
answer = Put on an anti-static wrist strap. why? because You should put on an anti-static wrist strap after unplugging the AC adapter and removing the battery from the laptop. You should take this precaution while servicing or upgrading a computer system to prevent damage of sensitive computer components. Computer memory is extremely sensitive to static electricity. Therefore, you should always ground yourself before handling and installing the memory. You can wear an anti-static wrist strap to ground yourself. If you do not have an anti-static wrist strap, you can ground yourself by installing memory on an uncarpeted surface and by touching an unpainted metal part of your laptop.
A computer uses an LCD monitor. You need to deploy the highest resolution available for a high-end application. Which of the list LCD technology will provide this?
answer = QXGA why? because Of the options listed, QXGA provides the highest resolution. QXGA stands for Quad Extended Graphics Array. This LCD technology provides a maximum resolution of 2048 x 1536.
A technician is tasked with upgrading a network card on a Windows 7 Professional PC. The technician installs the network card, loads Windows XP drivers that came with the network card, and reboots the PC. Upon rebooting, the computer blue screens and the technician cannot get the computer to boot up properly. Which of the following should the technician perform to resolve this issue without any data loss? (Select TWO).
answer = Remove network drivers and Boot up in safe mode
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?
answer = Replace the battery
A user is running a RAID 0 array and has problems with one of the drives. Which of the following actions will the technician take NEXT?
answer = Replace the drive; all the data is lost and cannot be recovered.
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 this problem?
answer = Replace the failed drives and verify the RAID rebuilds completely.
You are troubleshooting a problem with a Windows XP Professional computer. When you boot up the computer, you hear the hard disks start, the computer beeps once, and everything appears normal except the display. The display is blank. You confirm that the monitor's power switch is on and the monitor is plugged in. What should you do next to troubleshoot this problem?
answer = Replace the monitor.
A technician has installed a maintenance kit on a laser printer and replaced all consumables. Which of the following should the technician do NEXT?
answer = Reset the page count.
After updating the device drivers for a video adapter, a user reports they are only able to view a portion of the screen and the text is very large. Which of the following is MOST likely the cause?
answer = Resolution set too low
A technician is called onsite to solve a network connection error. Upon arrival, the technician observes a message on the screen stating there is no boot drive found. Which of the following steps should the technician take NEXT?
answer = Restart the system to verify the proper boot sequence.
A technician needs to replace an internal component on a laptop. Which of the following would be an important step to perform BEFORE replacing the component?
answer = Review manufacturer's documentation for disassembly procedures
A technician is asked to upgrade RAM in a laptop from 4GB to 8GB. Which of the following should the technician do FIRST?
answer = Review the vendor laptop documentation
Which of the following network devices would be MOST likely to perform Network Address Translation (NAT)?
answer = Router
Which of the following uses policies to direct network traffic?
answer = Router
What SATA standard provides a transfer rate of 3 Gb/sec?
answer = SATA3
The SATA/600 standard is also known by what other name?
answer = SATAIII
What two SD standards utilize the FAT file system?
answer = SD & SDHC
When installing additional RAM for a laptop, which of the following would MOST likely be used?
answer = SODIMM
Which of the following memory form factors is MOST commonly found in laptops?
answer = SODIMM
Which of the following memory types is used exclusively in laptops?
answer = SODIMM
Which of the following can ONLY be installed when a laptop is turned off and disconnected from all power sources?
answer = SODIMM chip
What functions as the name of a wireless network?
answer = SSID
Which connectors are used with fiber-optic cabling? (Choose two.)
answer = ST and answer = SC
Which of the following Internet connection types would typically have the GREATEST latency?
answer = Satellite
a component made of metal that is designed to draw heat away from a processor into the fins
answer = heat sink
____ transmission systems are similar to terrestrial microwave systems except that the signal travels from a ground station on Earth to a satellite and back to another ground station on Earth.
answer = Satellite microwave
Which of the following tools and test equipment is routinely magnetized and should be used with caution around magnetic media?
answer = Screwdrivers
Originally developed by IBM, what protocol is used by Windows to share files and printers on a network?
answer = Server Message Block (SMB)
A consultant is looking to consolidate six company servers onto one physical system. Which of the following requirements is MOST important on the new setup to ensure stable functionality of the virtual environment?
answer = Server hardware resources
A user has installed a second hard drive into a computer and receives a message stating 'Invalid Boot Volume.' Which of the following should a technician recommend to solve this problem?
answer = Set the jumpers on both hard drives to C/S.
You are a desktop engineer for DreamSuites Corporation. Irene Jones has joined DreamSuites Corporation as an HR Executive in the London office. You configure a new computer for Irene Jones. The computer will not power up, and you have asked to troubleshoot the problem. Which action is NOT required to troubleshoot the problem?
answer = Set the power output of the wall outlet to 230 volts.
____ twisted pair wire is used in environments that have a noticeable amount of electromagnetic interference.
answer = Shielded
When comparing DSL broadband to cable broadband, which of the following is an advantage of DSL broadband?
answer = Signal is not shared back to the switch
Which of the following allows for the FARTHEST transmission distance for data?
answer = Single-mode fiber
In reference to express card types (e.g. Express Card 34 and Express Card 54), which of the following BEST describes what the numbers indicate?
answer = Size of the expansion slot
When computers are connected on a network in a manner where the data flows to a central point and then back out describes which of the following networks?
answer = Star
Which of the following settings, when enabled, is MOST likely to result in an IP address conflict on a local network?
answer = Static IP address
Which of the following properties of TCP/IP is used to differentiate the network and the host portions of an IP address?
answer = Subnet mask
Susan called the help desk to ask which type of BIOS password she should configure to restrict access to the BIOS setup program. Which password type would you explain?
answer = Supervisor password.............. why? because You should configure the Supervisor password to restrict access to the basic input output system (BIOS) setup program. Modern computers use two passwords, namely the User password and the Supervisor password, to restrict access to a computer and to protect the CMOS settings within the BIOS. The Supervisor password restricts access to BIOS settings to ensure that unauthorized users are not able to change the BIOS settings. The User password can be used to restrict access to a computer. The computer prompts for the User password each time a user attempts to boot a computer. The computer prompts for the Supervisor password each time a user attempts to enter the BIOS setup program.
Which of the following would BEST segment a LAN while providing additional network ports?
answer = Switch
What protocol makes a connection, checks whether the data is received, and resends it if it is not?
answer = TCP
A customer requires that both of the default FTP ports be allowed on the firewall. Which of the following should the technician enable to allow this communication? (Select TWO).
answer = TCP/20 and TCP/21
Management has decided that all corporate servers should be upgraded to processors that include two cores. Which technology must be supported by the operating system and applications to provide the entire functionality of the dual-core processor?
answer = TLP........................ why? because The operating system and application must support thread-level parallelism (TLP) to provide the entire functionality of a dual-core processor. Dual-core processors are single physical processors that contain two processor cores, instead of one.
Cheryl is an avid gamer. She needs to purchase a new laptop for personal use, but she is a bit confused about which type of display to order. She needs a display that is the best suited for gaming, but she does not want to spend more than necessary. Which display type or feature should you recommend?
answer = TN (TTL type)...................... why? because A Twisted Nematic (TN) LCD displays provide the fastest refresh rate of the options listed. It is popular in 3D gaming. TN is the most affordable LCD technology. The TN display panel is the most popular LCD and has a low manufacturing cost. TN monitors also offer high brightness and draw less power than competing technologies. Although they have fast refresh rates, they have limited viewing angles and issues with color reproduction. Because a gaming laptop will only be viewed from one angle, this is not a consideration.
A PC is running slower than usual. Which of the following tools would BEST diagnose the possible bottleneck?
answer = Task Manager
An entry level network analyst calls and is not sure which Windows OS features to use to check for users who are currently logged on. Which of the following features would BEST assist this analyst?
answer = Task Manager
From which of the following tools can a technician locate the PID of an application?
answer = Task Manager
Which of the following is the purpose for the tool shown in the exhibit?
answer = Terminating UTP cable
What is a typical sign that a capacitor is bad or has failed?
answer = The capacitors have a crusty corrosion at the base of the capacitor & The capacitors are discolored.
What is a typical sign that a capacitor is bad or has failed?
answer = The capacitors have a crusty corrosion at the base of the capacitor and The capacitors are discolored.
An end user reports that they are unable to access any websites or network resources by the fully qualified domain name (FQDN); however, the technician is able to access these resources by IP address. Which of the following is the MOST likely cause for this problem?
answer = The customer's DNS server is unavailable.
Which of the following describes the expected properties of an asynchronous digital subscriber line service?
answer = The data download speed is faster than the data upload speed.
What occurs during the cleaning phase of laser printing?
answer = The discharge lamp neutralizes the imaging drum............................. why? because The discharge lamp neutralizes the photoreceptor in the cleaning stage of the laser printing process. The following are the seven stages of the laser printing process: 1. Processing - The computer sends the printed document to the printer spooler. The printer spooler contacts the printer. The printer processes the image. 2. Charging - The charge corona (also referred to as the primary corona) applies a uniform charge (typically negative) to the imaging drum. This creates a "blank slate" to which the laser will write. 3. Exposing - The modulated laser beam writes an electrostatic image on the rotating drum. Any areas on the imaging drum that the laser beam touches lose most of their electrostatic charge. This differential in electrostatic charge between the areas of the drum that have been written to and the remainder of the drum allows the image to attract toner in the next phase. 4. Developing - Toner is transferred from the toner cartridge to the imaging drum. The toner cartridge has a metallic roller called a developing cylinder that takes on a charge equal to the imaging drum. The tonersticks to the developing cylinder, and as it rotates toward the paper a "toner fog" is created as the toner is both attracted to and repelled from the imaging drum. The toner is repelled from areas that were not touched by the laser because they have the same electrostatic charge as the toner and it is attracted to the areas on the drum that were touched by the laser because of the difference in the electrostatic charges. This creates an image that is ready to be transferred to a piece of paper. 5. Transferring - The transfer corona charges the paper so that the toner on the imaging drum is attracted to the paper as the drum rotates and the paper and drum come into very close proximity. A corona discharges the electrostatic charge on the paper immediately after the toner transfers from the imaging drum to the paper, preventing the paper from sticking to the drum. Transfer rollers move the paper through the transferring process. 6. Fusing - The final step permanently bonds the toner to the paper. A fusing roller, heated by a quartz lamp, melts the toner to the paper and the paper exits the printer. 7. Cleaning - A rubber cleaning blade removes any toner left on the imaging drum and deposits it into a waste bin, and a discharge lamp neutralizes the charge on the drum.
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?
answer = The drivers for the NIC need to be updated.
An NTFS folder named Research is backed up on a regular basis. You restore the folder onto another hard drive but notice that the file permissions were not restored. What is the MOST likely reason this happened?
answer = The files were restored on a FAT partition. why? because It is most likely that the files have been restored on a FAT partition. While NTFS partitions allow files to be configured with individual permissions, FAT partitions do not. While you can restore NTFS files on a FAT partition, the NTFS file permissions will be lost.
A user reports that the desktop PC shuts down 10 minutes after turning it on in the morning. When the technician moves the PC, it sounds like there are loose parts sliding around in the case. Which of the following is the MOST likely explanation for the PC shutting down?
answer = The heat sink retaining clip has broken loose
A keyboard has been replaced on a laptop. Which of the following is the MOST likely cause that the keyboard does not work?
answer = The keyboard data cable was not connected properly
A technician is troubleshooting a PC that is not completing POST and merely provides an audible beep code. Which of the following should be the FIRST item checked?
answer = The memory configuration
A customer states that their laptop has stability issues after a recent memory upgrade. Which of the following is the MOST likely cause?
answer = The memory is not properly seated.
Which of the following should a technician check FIRST before upgrading the RAM in a laptop?
answer = The motherboard specifications
A user reports that all print jobs sent to a certain printer that require legal sized paper are not printing. However, standard size paper jobs are printing correctly. A technician checks the paper tray and verifies that it is loaded with legal size paper. Which of the following is the MOST likely cause of the problem?
answer = The paper size for the tray is incorrect in the printer setup.
A technician recently installed a new video card in a PC. The PC already has integrated video on the motherboard. When the technician turns on the PC, there is no video. Which of the following is MOST likely the cause?
answer = The power connector for the video card is unplugged.
A customer purchases a new 802.11n router for their home. They connect it to their current 801.11g devices, as well as their new laptop. Even though the laptop has a built-in 802.11n antenna, they are not noticing any speed increase. Which of the following is the MOST likely cause?
answer = The router is broadcasting in Mixed Mode.
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?
answer = The scanner lock switch on the device is locked
A technician is trying to install an ExpressCard device for a user. The user's laptop is confirmed to have one spare slot for ExpressCard devices, however, the card is simply too large to fit into the labeled port. Which of the following is MOST likely the issue?
answer = The slot is for ExpressCard/34 devices
A user recently purchased an 802.11g-capable laptop, but reports their network connection speed is much slower than expected. The technician notes that while the users wireless signal strength is excellent, they are connected at just 11Mbps. Which of the following BEST describes the cause of the problem?
answer = The user is connected to an 802.11b wireless access point.
A user's CRT display is not displaying colors correctly. Turning the display to the right or left sometimes temporarily corrects the problem. Which of the following should the technician check?
answer = The video cable
If you were explaining to your company's IT personnel about the difference between their old hard drive technology and newer solid state drives, which statement would be FALSE?
answer = They use a read/write assembly...................................... why? because Solid state drives or SSD do NOT use a read/write assembly. A solid state drive does not have any moving parts. They are not as fragile as magnetic hard drives because they do not have any moving parts and are resistant to shock. When in operation, solid state drives are silent. Solid state drives are faster, more reliable, and require less power than magnetic drives.
You are wiring a small office for a client. The client has purchased several 568A and 568B wall jacks and enough 568A wiring cables to attach all devices correctly. You want to configure the network for ease of administration.
answer = Use only the 568A wall jacks. ................. why? because You should use only 568A wall jacks. Both the 568A and 568B wiring specifications will work for a network configuration. However, you must use the same specification throughout your network. Because the client has purchased enough 568A wiring cables to attach all devices correctly, you should choose to use the 568A wiring scheme.
Which of the following typically cannot be upgraded in a laptop?
answer = Video card
When you start your computer, a CMOS checksum error is caused. After investigating, you discover that the CMOS battery is causing the problem. You want to measure the voltage of the CMOS battery before replacing it with a new one. Which device should you use?
answer = Volt Ohm Meter ................. why? because The Volt Ohm Meter (VOM) is used for most electrical measurements and for testing continuity. This meter can check voltage, AC or DC, ohms, AC circuits, DC circuits, batteries, milliamps, diodes, or capacitors. If the CMOS battery is failing, you would most likely replace it with a CR2032 battery. There are two types of VOMs: analog and digital. The analog VOM has a physical meter with a needle that moves from left to right, a rotary switch, and a set of wire probes. The switch setting enables you to select the mode in which the device should operate. The measurement of certain signals and levels is not accurate because of the physical meter. The digital VOM has a digital display, movable parts, wire probes, and a rotary switch to select the operational mode.
Three locations in the same company are connected with routers to a private T-1 point-to-point line. The sites have their own dedicated private subnets but can route to each other. Which of the following networks is described in this scenario?
answer = WAN
Which of the following encryption methods is considered easily broken and should be avoided when configuring wireless security?
answer = WEP
Which of the following encryption types is the LEAST secure?
answer = WEP
Which of the following wireless encryption types is vulnerable to weak IVS attack
answer = WEP
assures that data written onto a tape will not be deleted or overwritten
answer = WORM drive / cartridge
Which of the following is the strongest wireless encryption method?
answer = WPA2 AES
Which of the following is MOST likely found inside a laptop display assembly? (Select TWO).
answer = Webcam and Wireless antennas
Which built-in laptop device below would be of the most use when conducting a meeting with a person in another location?
answer = Webcam................................ why? becauseA webcam would be of the most use when conducting a meeting with a person in another location. Most laptops come fully equipped with built-in webcams. A webcam is a small video camera installed in the laptop lid. People use webcams for telecommunication purposes, chatting online with colleagues and loved ones, or training users on devices in another location. Drivers are preinstalled with no extra configuration needed to set them up. A Webcam allows you to communicate with another person over a network connection, including conducting a meeting. Many webcams include a built-in microphone to carry audio signal.
indicates that the system is waiting for a response from a program or device
answer = Windows pinwheel
Which of the following is MOST likely to have a physical switch on a laptop that allows it to be turned off without going into the BIOS?
answer = Wireless
What icon might you see in Device Manager that indicates a problem with a device?
answer = Yellow Triangle
You have a bootable DVD that includes virus-scanning software. However, when you insert the DVD into a computer's DVD drive and reboot the computer, the computer still boots normally. What is the problem?
answer = You need to change the BIOS boot order............... why? becauseYou need to change the BIOS boot order. The computer will not boot using the bootable CD because the hard drive has a higher boot priority than the DVD drive. This can also be a problem if you try to boot using a floppy disk. BIOS boot order issues were more common when floppy drives were listed as the first boot device. If a nonbootable floppy was left in the floppy drive at boot time, the computer would display a Non-system disk or disk error at startup. Once the floppy disk was removed from the drive, the computer would boot. Today a CD-ROM or DVD drive is often listed as the first boot device. This issue can also result from missing or corrupt boot files. If you suspect that this error is due to boot files being missing or corrupt, you should enable boot logging from the Windows Advanced Menu and replace the missing or corrupt boot files using the Windows installation media.
____ systems are good at sending low-speed signals over short to medium distances.
answer = ZigBee
What should you install in a server room that will save space by allowing you to control multiple servers with a single mouse, keyboard, and monitor?
answer = a KVM switch
Which statement regarding the USB standard and USB devices is accurate?
answer = a USB cable has four wires, two for power and two for communication
What happens when a flash memory card is installed in a slot and it is recognized by Windows?
answer = a drive letter is assigned to the device and you can see it in Explorer
When installing a new device, which statement is accurate?
answer = a mouse may not require an additional device driver installation
The idea behind ____ is that the peripheral can simply be plugged in and turned on, and that the computer should dynamically recognize the device and establish the interface.
answer = hot plugging
What are the two highest heat producing components in a system?
answer = processor and video card
used to cast a transparent image onto a large screen
answer = projector
What does an inkjet printer use to push ink onto paper?
answer = a piezoelectric crystal..................................... why? because Inkjet printers use either of two methods to push ink onto the print medium, typically paper. One method is to precisely vibrate a piezoelectric crystal, which then pumps ink through a nozzle. The other method is to apply a voltage to a resistor, which heats ink to the boiling point. When the ink boils, the vaporization pressure pushes the ink through fixed-position nozzles and onto paper. The first method is referred to as mechanical vibration, and the second method is referred to as thermal shock. A given inkjet printer will only use one of these ink deposition techniques.
Which biometric authentication device scans the pattern of blood vessels in the back of the eye?
answer = a retinal scanner........................ why? because A retinal scanner uses a laser to scan the blood vessels in the back of the eye to authenticate a person's identity. All biometric devices are considered input devices.
A missing standoff could create what potential problem?
answer = a short on the motherboard
One long and two short beeps when using an Award BIOS is an indication of what issue?
answer = a video problem
What does a single beep or no beep imply during the startup of a computer?
answer = all POST tests passed
CPU coolers are typically made using what two different types of materials?
answer = aluminum & copper
What is an auto-switching AC adapter?
answer = an adapter that can use 110V or 220V AC power
Unfortunately, noise itself occurs as a(n) ____ waveform, and this makes it challenging, if not extremely difficult, to separate noise from an analog waveform that represents data.
answer = analog
What is the transmission distance supported by single-mode fiber optic cable?
answer = appr. 20 miles why? because
What term refers to horizontally torn images on a screen, which occur when the video feed from the video controller gets out of sync with the refresh rate of the monitor?
answer = artifacts
a feature in startup BIOS that detects a new drive and selects the correct drive configuration
answer = autodetection
You are showing a new IT technician how to install portable computer components. You want to demonstrate which devices can be removed and re-installed without using screws or disassembling the computer. Which device satisfies this requirement?
answer = battery..................... why? because The battery can be removed and re-installed without using screws or disassembling the portable computer in any way. You can "pop out" the old battery and "pop in" the new battery by using a slider button on the bottom (or underside) of the computer.
If you are adding a hard drive to a system that already has a drive with Windows installed on it, what should you do?
answer = boot Windows and use Disk Management to prepare the new drive
What command line utility can be used to repair the BCD on a Windows installation?
answer = bootrec
When a static image stays on a monitor for many hours leaving a permanent impression of that image on the monitor, what term is used to describe the condition?
answer = burn-in
A(n) ____ is simply a high-speed connection to which multiple devices can attach.
answer = bus
The ____ topology consists of a simple cable, or bus, to which all devices attach.
answer = bus/tree
If a user on a laptop complains that they are unable to sign into Windows even though they are certain they are entering the correct password, what should you have them do?
answer = check the NumLock indicator on the laptop
What component of a motherboard is not considered to be a field replaceable unit?
answer = chipset
What two terms are used to describe the User Datagram Protocol (UDP)?
answer = connectionless protocol and best effort protocol
Depending on the manufacturer of the BIOS, what two different POST beep code sequences indicate a memory error?
answer = continuous short beeps and continuous three short beeps and then a pause
the relative difference between light and dark areas on a video screen
answer = contrast ratio
The merging together of two or more businesses or technologies is termed
answer = convergence
Your computer only boots with a bootable DVD. It is not able to boot without a bootable DVD. What could be the possible reasons for this problem? (Choose two.)
answer = corrupt operating system..................... why? because and answer = bad hard disk............... why? because
What device handles access to another network for a client computer if it does not have a better option?
answer = default gateway
Which TCP/IP configuration information must a computer on a network have before it can communicate with the Internet? (Choose three.)
answer = default gateway........................ why? because The default gateway is the address of the default router. and answer = TCP/IP address why? because Every host on a TCP/IP network will need to be configured with a subnet mask. Use the default subnet mask if you are not dividing your network into subnets. You will need to create custom subnet addresses if your networks are to be divided into subnets. and answer = subnet mask why? because The subnet mask is used to block out a portion of the IP address. The purpose of the blocking is to distinguish the network ID from the host ID. It is also used to identify whether the IP address of the destination host is on a local network or on a remote network. Subnet mask addresses are 32-bit numbers.
If a computer is performing slowly due to file fragmentation, what Windows tool can be utilized to rearrange fragments?
answer = defragmentation tool
The ____ component of an interface describes how the particular circuits are used to perform an operation.
answer = procedural
You want to ensure that a computer has a 64-bit architecture and is able to fully utilize 64-bit computing. Which component is NOT important for this purpose?
answer = device drivers.............. why? because The computer's memory is not important. A benefit of using 64-bit processors is that the maximum amount of RAM that can be used increased from four gigabytes to one terabyte (1,000 gigabytes). For a computer to provide a full 64-bit architecture, the computer must have a 64-bit processor installed. In addition, a 64-bit operating system and 64-bit device drivers must be used to ensure that the 64-bit processor is fully utilized. When the 64 designation is used in a processor name, it means that the processor provides a 64-bit register. 64-bit processors allow computers to use memory over 4 gigabytes (GB). To fully utilize a 64-bit architecture, all components need to support it. Otherwise, those components that do not support the 64-bit architecture will operate in 32-bit mode.
The ____ digital encoding scheme is similar to the Manchester scheme in that there is always a transition in the middle of the interval.
answer = differential Manchester
another term for graphics tablet, which is used to hand draw
answer = digitizer
The wireless antenna is typically located inside the laptop's:
answer = display bezel
When Kevin was hired, he inherited a box of different types of RAM. Which RAM would you ask him to set aside if you needed to increase the number of data wires available from 64 to 128?
answer = dual channel............ why? because The dual-channel memory architecture increases the number of data wires available from 64 to 128.
A user reports that his Windows computer often issues errors about running out of virtual memory. You want to increase the amount of available virtual memory. What should you do?
answer = dual channel.............................. why? because The dual-channel memory architecture increases the number of data wires available from 64 to 128.
a power supply with a second +12v rail
answer = dual rail
Which processor technology contains two processor cores in a single processor package and provides all of the advantages of a multi-processor computer?
answer = dual-core technology.............................. why? because Dual-core technology contains two processor cores in a single processor package and provides almost of all the advantages of a multi-processor computer. The dual-core technology was introduced by both AMD and Intel in 2005. Dual-core processors are 32-bit processors that can run in 64-bit mode.
A user's computer is experiencing overheating problems. What is the most likely cause of this problem?
answer = dust.............. why? because Dust is the most likely cause of computer overheating. For this reason, you should often clean your computer, both inside and out, to ensure that dust accumulation does not occur. All users should be educated on computer cleaning methods to ensure that dust buildup does not occur.
used to display information about hardware and diagnose problems
answer = dxdiag.exe
What type of IP address is configured by a server when a device first initiates a connection to the network?
answer = dynamic
Which of the following is an example of an IPv6 address?
answer = e80::200:f8ff:fe21:67cf
A problem with virtual networks is that data transmitting through them cannot be encrypted and therefore is not secure.
answer = false
The Telnet protocol encrypts transmitted data, which therefore cannot be read by others on the network.
answer = false
The User Datagram Protocol (UDP) guarantees delivery of data to its destination.
answer = false
When using static IP addressing, software automatically configures the network connection on each device.
answer = false
a computer's ability to respond to a hardware failure
answer = fault tolerance
Which network medium is the least susceptible to EMI or signal capture?
answer = fiber-optic. why? because Fiber-optic cable carries its signals in the form of modulated pulses of light. Because fiber-optic cables use light pulses rather than electric signals, it is virtually impossible to intercept the signal on a fiber-optic cable without interrupting it and thus being detected.
the overall structure an OS uses to name, store, and organize files on a drive
answer = file system
What type of device can be used to block unwanted traffic initiated from the Internet and can also restrict Internet access from an internal network?
answer = firewall
What functions might be provided by a SOHO router besides the normal duty of routing packets between networks? (Choose all that apply).
answer = firewall & wireless access point
A Windows XP system stops booting with the error message 'NTLDR is missing'. Which of the following is the BEST resolution for this problem
answer = fixboot
What is a basic principle that applies to both internal and external devices?
answer = for most installations, install the device first, then the device driver
a file system used by DVD and Blu-ray Discs
answer = guess a cause canvas refuses to give right answer.
Some systems, for various reasons, allow only one side or the other to transmit at one time. This type of connection is an example of a ____ connection.
answer = half-duplex
Where is the MBR stored?
answer = hard disk............................... why? because The Master Boot Record (MBR) is contained in a partition's master boot sector, which is the first sector of a computer's hard disk or a system floppy disk. MBRs contain two primary components: executable code and a partition table. Executable code in the MBR is responsible for locating the appropriate operating system from the partition table and loading it into RAM to make the operating system active. Partition tables identify each partition that resides on a specific disk.
Where will the wireless antenna most likely be positioned in a laptop computer with an integrated wireless adapter?
answer = in the display.................. why? because The wireless antenna is most likely placed in the display of a laptop computer with an integrated wireless adapter. Placing the wireless antenna in the display allows it to transmit from the highest location within the laptop. The wireless antenna cables will run from the integrated wireless adapter to the display. The wireless adapter is usually located somewhere under the keyboard.
an outdated wireless technology used to connect personal devices, has been replaced by Bluetooth
answer = infrared (IR)
An outline of an image can be viewed on a laptop screen, but it is very dim and the screen appears almost black. This can be caused by a failing. (Select TWO).
answer = inverter and LCD
What command can be used to display IP addresses assigned to all network connections on a system?
answer = ipconfig
Which of the following statements is true regarding RG6 coaxial cable?
answer = is thicker than RG59 coaxial cable.......................... why? because
What statement best describes a RAID 5?
answer = it requires 3 or more drives and uses parity checking
Three long beeps during the POST sequence on an Intel BIOS are an indication of what type of issue?
answer = keyboard controller problem
The SODIMM memory form factor is generally used in which of the following?
answer = laptops
the technology most commonly used by battery packs
answer = lithium ion
A(n) ____ connection is a nonphysical connection between sender and receiver that allows an exchange of commands and responses.
answer = logical
The hard drive firmware, UEFI/BIOS, and the OS address the sectors on a hard drive utilizing what technology?
answer = logical block addressing
The ____ sublayer is primarily responsible for logical addressing and providing error control and flow control information.
answer = logical link control (LLC)
What process writes sector markings to a hard drive?
answer = low-level formatting
Which statement regarding the selection of a hard drive is accurate?
answer = magnetic drives have larger capacity for the money than solid state drives
The ____ component of an interface deals with items such as the connector or plug description.
answer = mechanical
What is the main difference in the physical composition of UTP and STP cable?
answer = mesh shielding why? because Shielded twisted-pair (STP) cables are identical to UTP except for the shielding that encloses the twisted pairs. This metallic shield protects the STP cable from interference caused by fluorescent light fixtures, motors, and other electromagnetic interference (EMI) sources. STP cables can be used in any implementation where UTP cables are used, but they are generally only used when shielding from EMI is required because it is more expensive than using UTP cables.
a storage configuration in which data is duplicated on one drive to another drive
answer = mirrored volume
You are using the ipconfig tool to troubleshoot a problem with a wireless host. The results are as follows: Adapter address: 00-10-4B-DE-F5-D8 IP address: 192.168.1.40 Subnet mask: 255.255.255.0 Default gateway: 0.0.0.0 You can access services on the local network from the host, but you cannot access the Internet. What is the most likely cause of the problem?
answer = missing default gateway...................... why? because A default gateway must be specified for a host for it to connect to hosts outside the local network. This address is the address of the router interface on the local segment that forwards data to other networks. On small networks, the default gateway is the address of the router that connects the local network to the Internet.
Which cable uses a light-emitting diode (LED)?
answer = multi-mode fiber optic cable. why? because A multi-mode fiber optic cable uses an LED to emit the light from the current that passes through the LED. An LED uses two semiconductors: p-type semiconductors and n-type semiconductors. When both the semiconductors are kept in direct contact, they form a region called P-N junction. The current is passed from the ptype semiconductor to the n-type semiconductor and light emits from the current. The LED is used in fiber optics for faster data transmission that occurs in remote controls and LCD backlighting.
The ____ layer is the OSI layer that handles routing.
answer = network
A cooler with heat pipes, which contain a small amount of liquid that becomes a vapor when heated, allowing heat to be drawn away from the CPU without the use of a fan is known by what two terms?
answer = passive CPU cooler and fanless CPU cooler
A direct connection between a terminal and a mainframe computer is a ____ connection.
answer = point-to-point
You are the desktop administrator for your company and maintain all the computers in your organization. To properly upgrade one of the computers, you must upgrade the motherboard. While upgrading this computer, you should choose the appropriate form factor that is suitable for the motherboard of the existing computer. Which two specifications should you consider while selecting the appropriate form factor? (Choose two.)
answer = power supply why? because orm factor largely defines the physical size and the power supply supported on a motherboard. Each type of form factor will have a standard physical size for the motherboard. There may be deviations from the standard size of a motherboard for motherboards made by certain manufacturers, but the physical size of the motherboard is largely defined in the form factor specifications. The power supply supported by a particular form factor may not be supported by another form factor of the motherboard. For example, there is a difference in the power supply used for PIII and PIV motherboards. The power supply connectors that connect to the motherboard are different in size, shape, and power ratings.
What should you do if the system continually reboots and you can't read the error message produced on a blue screen?
answer = press F8 as Windows starts up
Which component is always located on the CPU and accelerates the processing of instructions?
answer = the L1 cache................ why? because The central processing unit (CPU) uses cache memory to accelerate the processing of instructions and data. CPUs have contained cache memory as part of the chip architecture since the introduction of the 486; this cache memory is known as Level 1 (L1) cache, or internal cache. The amount of L1 cache is fixed because it is located on the processor itself. The L1 cache operates at the same speed as the processor. Some processors have two L1 caches; one cache stores instructions, and the other cache stores data.
A user contacts you stating that his laptop is making a weird buzzing noise. When you examine the laptop, you notice that the buzzing noise is coming from the bottom of the display assembly. Which device should you probably replace?
answer = the inverter board..... why? because You should probably replace the inverter board in the display assembly. The buzzing noise can be a sign that the inverter board is failing. When the inverter board fails, the image on the screen will be dim or dark, even when you adjust the brightness settings. One good test for video display problems with a laptop is to connect the laptop to an external monitor. If the external display is good, then the internal video card is not the problem. The problem is most likely caused by the inverter or the backlight.
What might be the cause of a black screen right after you install a new video card
answer = the onboard video is not disabled in BIOS
What might be the cause of a black screen right after you install a new video card?
answer = the onboard video is not disabled in BIOS
What is an indication that an inadequate power supply is the source of an intermittent problem?
answer = the power supply whines when you first turn on the system
If you see an error message that reads "Processor thermal trip error", what is the likely problem?
answer = the processor has overheated
When might an LCD monitor experience distorted geometry?
answer = the screen is not set to native resolution
Beverly has contacted you and stating that her computer will not boot and keeps beeping. Which components must pass a computer's power-on self-test (POST) before an operating system will load? (Choose three.)
answer = the video card why? because A computer will not load an operating system if it encounters fatal errors during the POST. A central processing unit (CPU), memory, or video card failure during the POST routine will generate a fatal error and halt the startup process. and answer = the memory why? because A computer will not load an operating system if it encounters fatal errors during the POST. A central processing unit (CPU), memory, or video card failure during the POST routine will generate a fatal error and halt the startup process. and answer = the central processing unit (CPU) why because The POST of a computer is designed to test the essential components of the system during power on. During the built-in diagnostics performed by the BIOS, the CPU, memory and video card must function properly. After the POST executes, the boot loader phase occurs. The BIOS contains setting for the memory (RAM), hard drive, optical drive, and CPU.
When replacing laptop components, which device always involves the detaching and re-attaching of antenna connectors?
answer = the wireless card ........................ why? because Replacing the wireless card, you need to detach and re-attach the antenna connectors. This is usually replaced using an access slot on the bottom or side of the laptop.
What is a typical symptom of a CMOS battery failure?
answer = time and date settings lost
Why might you want to use a RAID 0 disk configuration?
answer = to improve overall disk performance
Why might you disable quick booting features in BIOS when you are troubleshooting a problem?
answer = to see a full POST report
Which term is used to identify the concentric circles on a hard disk platter?
answer = track
The current release of SMB is CIFS, also called SMB2.
answer = true
Packets are delivered to a single node on a network when using what type of IPv6 address?
answer = unicast address
Which benefit does the Hyperthreading (HT) technology in a processor provide?
answer = uses virtual processors to perform multitasking.................. why? because The Hyperthreading (HT) technology in a processor provides the benefit of using a virtual processor to perform multitasking. A processor with HT enabled uses a single processor to create another virtual processor to simultaneously perform multiple tasks. A computer with HT enabled will virtually have two processors running. One processor is physically present in the computer, and another processor is a virtual processor. The HT capability of a processor allows the processor to perform multiple tasks without causing any delay by keeping multiple processes waiting in queue.
A user complains that his monitor is not working. You must diagnose the problem to return the monitor to normal operation. What are the four primary sources of display problems? (Choose four.)
answer = video cable................... why? because and answer = monitor why? because and answer = video driver why? because and answer = video adapter card
Which of the following would a technician MOST likely upgrade on a laptop?
answer = video card
The solution for securing private data traveling over a public network, such as the Internet, is the use of what type of network?
answer = virtual private network (vpn)
What technology is used to assure that the logical block addressing on a solid state drive does not always address the same physical blocks, in order to distribute write operations?
answer = wear leveling
Which type of keyboard does NOT change the Num Lock status LED when you toggle the key?
answer = wireless keyboard.................. why? because A wireless keyboard does not change the Num Lock status LED when you toggle the Num Lock key. The LED status light changes on the wireless receiver. This behavior preserves the battery life. Keyboards are input devices.
If you are trying move a hard drive from a non-working computer to a working computer for the purposes of accessing the data on the drive, what must you have?
answer = you must have an Administrator password before you can access the data on the drive
If the startup BIOS can't find a device to use to load the operating system, what error message is likely to appear?
answer = Fixed disk error
Which of the following ports MUST be open to connect to a PC using RDP?
answer =3389
Which unshielded twisted pair (UTP) cable supports data transfer up to 100 Mbps?
answer =CAT5
What is an example of a solid state drive?
answer =USB flash drive........................ why? because A USB flash drive is an example of a solid state drive. Solid state drives do not have the moving parts that are used in magnetic or optical drives, and are therefore safer to use in harsh working conditions.
The most common example of ____ data is the human voice.
answer =analog
a location where Windows keeps a copy of driver software
answer =driver store
Every time a Windows Vista computer boots, you receive an error message stating that the cover was previously removed. You want to prevent this alert from being displayed. In which location should you disable this alert?
answer =in the BIOS.............. why? because To prevent an alert regarding the cover being removed from displaying, you should disable the chassis intrusion detection, no matter which operating system you are running. Chassis intrusion detection is always configured in the system BIOS. Chassis intrusion detection is a method of physical intrusion detection. It provides an alert the next time that the computer is booted that tells the user that the chassis has been opened. Often hackers will physically open a computer to insert hardware that is used to capture confidential or sensitive information. Chassis intrusion detection is not configured in the System Configuration utility, in Event Viewer, or in Device Manager.
A client, Warren, reports CMOS mismatch errors at startup. Further conversation with Warren reveals that he had forgotten the startup password he assigned in CMOS, and he had to clear all CMOS settings for his computer to complete a successful startup. Although he can now start his computer, he continues to observe CMOS errors each time he starts the computer. He replaced the CMOS battery, but the problem continues.
answer =the system board jumper settings
A user reports that they 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?
answer Clear the print queue
What hard drive technology is used to predict when a drive is likely to fail?
answer S.M.A.R.T.
What command can be used to flush the local DNS cache on a Windows computer?
answer ipconfig /flushdns
What two terms describe the type of network cable that is used for connecting a computer to a switch or other network device?
patch cable & straight-through cable
In order to terminate multiple network cables that converge in one location such as an electrical closet or server room, what should you use?
patch panel