CompTIA Week 1 Practice Questions

If you are concerned about security and don't want your laptop screen easily viewed by others, what type of display should you select? a. TN b. IPS c. OLED d. Plasma

A is correct. TN displays commonly have a 100 degree viewing angle, smaller than the 160 degrees or more of the others.

Which optical drive technology uses a 405 nm wavelength laser? a. Blu-ray b. CD c. DVD

A is correct. The Blu-ray laser is 405 nm (violet).

If you connect an external monitor to your laptop, you must configure it with identical display settings to the internal screen. True or false?

That's false. Using Control Panel or the manufacturer's software to configure display settings for each monitor separately.

If you have a DVI monitor and a VGA graphics port, you can't install your monitor. True or false?

That's false. You can install your monitor by attaching a DVI to VGA adapter onto the monitor's data cable.

The only way to test if your speakers are working is to play an audio file.

That's false. You can test each speaker individually using the Control Panel Sound applet.

Which port is important for sending email? a. 21 b. 23 c. 25 d. 53

C is correct. SMTP uses port 25, though the protocols that retrieve email use different ports.

What kind of network connection could you use to connect to your workplace LAN through your existing home Internet connection? a. Dial-up b. PPPoE c. VLAN d. VPN

D is correct. Dialup and PPPoE are separate network connection types, and VLANs are used inside of Ethernet LANs.

HDMI version 2.0 is the only video interface that supports 3D video. True or false?

That's false. DisplayPort also supports 3D video.

All laser printers include duplexing assemblies for double-sided printers. True or false?

That's false. Duplex assemblies are an option. They are common on laser printers, but aren't a required component.

Which items do you need to recycle to prevent soil and water contamination if they are sent to a landfill? Choose all that apply. A. Batteries B. CRTs C. Toner cartridges

A & B

You need a mobile device that allows you to make phone calls and send text messages. Which mobile device could you use? a. Smartphone b. Phablet c. Tablet d. Laptop

A and B are correct. Smartphones and phablets both have cellular phone and text messaging capabilities.

S/MIME must be supported by the mobile email client if users need to view and send encrypted email messages. True or false?

That's true. S/MIME enables users to send and receive S/MIME email messages from wireless email clients. Without S/MIME, users are unable to read encrypted email and can't send encrypted email themselves.

Order the following network scopes, from smallest to largest. a. CAN b. LAN c. MAN d. NFC e. PAN f. WAN

The correct order is NFC, PAN, LAN, CAN, MAN, WAN.

Which CPU feature simulates two logical processors on one physical processor by using registers to overlap two instruction streams? A. Multicore B. Hyper-threading C. 64-bit architecture D. Virtualization

B is correct. Hyperthreading simulates two logical processors on one physical processor by using registers to overlap two instruction streams.

Which IPv4 address might be valid on the Internet? a. 127.0.0.1 b. 150.50.101.32 c. 169.254.121.68 d. 192.168.52.52

B is correct. The others are a loopback address, an APIPA address, and a private address. None can be reached from the Internet.

What scope of network is most often controlled by a single user? a. LAN b. MAN c. PAN d. WAN

C is correct. A PAN commonly consists of a single computer and its associated devices.

You have a 5.1 surround-sound compatible sound card. You have a pair of left-right rear speakers and a front center speaker. What feature would you use to take the sound designed for 5.1 surround-sound and play it on your three speakers? a. Room correction b. Speaker fill c. Speaker phantoming d. Virtual surround

C is correct. Speaker phantoming takes sound designed for multiple speakers and plays it on fewer speakers.

What will any link-local IPv6 address begin with? Choose the best answer. a. 0000: b. 2000: c. fe80: d. ff0e:

C is correct. The others are loopback, global, or multicast addresses.

Which type of memory module is used in laptops and other small devices? A. DIMM B. RIMM C. SIMM D. SODIMM

D is correct. SODIMM is a smaller DIMM module designed for use in laptops and other small devices.

What TCP/IP layer does an Ethernet card operate on? a. Application b. Internet c. Network Interface d. Transport

C is correct. It's also called the Link layer.

Which display setting is not adjustable on LCD displays? a. Aspect ration b. Brightness c. Refresh rate d. Resolution

C is correct. LCD monitors don't suffer from flicker and therefore use a fixed frame rate measurement to redraw images.

Which of the following RAID levels incorporates disk striping? Select all answers that apply. a. RAID 0 b. RAID 1 c. RAID 5 d. RAID 10

A, C, and D are correct. Of the RAID levels listed, only RAID 1 doesn't use disk striping.

Which of the following are symptoms shown during the POST that could indicate a hard drive problem? Select all answers that apply. A. An invalid boot disk error B. The BSOD C. S.M.A.R.T. error D. Fixed disk error

A, C, and D are correct. This is a symptom that presents itself during normal use.

Which printer technology uses electrical charges and heat to print images? a. Impact b. Inkjet c. Laser d. Thermal

C is correct. Laser print technology uses focused light, electrical charges, and heat on a dry powder ink to transfer an image.

When should you align the print heads on your inkjet printer? a. After the maintenance interval indicated in your operator's manual. b. After replacing an ink cartridge. c. Prior to each print job. d. When the print head alignment warning appears on the printer's control panel.

B is correct. Aligning the print heads is a good thing to do after you replace an ink cartridge.

What cables use balanced-pair signaling? a. Coaxial b. Twisted-pair c. Both d. Neither

B is correct. Coaxial is unbalanced-pair with one signal and one ground.

If you determine an application error your users are receiving can be fixed by applying an application update from the manufacturer, you should go ahead and do that. True or false?

False, You want to make sure that you are complying with any company policies prior to applying the update.

When choosing components for a standard thick client, you should always select the best components you can afford. True or false?

That's false. The key to building a custom computer is "right-sizing." Over-building a computer has costs beyond the initial purchase price.

If your motherboard has a CPU socket, you can install any socket-type CPU. True or false?

That's false. The processor's package must match the socket and its features supported by the circuitry on the motherboard.

You can use a coupler to join two optical inputs to one output, but only if they're the same wavelength. True or false?

That's false. To avoid interference, you can only combine two signals of different wavelengths on one fiber.

Which of the following components directly installed on the motherboard is replaceable? A. A RAM slot B. A 24-pin ATX power supply connection C. A CMOS battery D. A fan connector

C CMOS battery can be replaced

In which troubleshooting step are manufacturer Web sites and technical support forums helpful? A. Identifying the problem. B. Establishing a theory of probably cause. C.Testing the theory to determine cause. D. Establishing a plan of action to resolve the problem and implement the solution. E. Verifying full system functionality. F. Documenting findings, actions, and outcomes.

C

Which class of fire extinguishers is used on electrical fires? A. Class A B. Class B C. Class C D. Class D

C

What feature can help keep unauthorized clients from connecting to the network? a. Content filtering b. DHCP server c. MAC filtering d. Port forwarding

C is correct. Since MAC addresses can be spoofed, it's not a very strong security measure in itself.

What type of test do you perform on a laser printer to determine if a print issue is occurring before or after the fusing process? a.Drum electro-static test b. Fuser control test c. Half-way test d. Toner fusion test

C is correct. The half-way test is used to determine if a print issue is occurring before or after the fusing process.

You can't ping any other hosts, even on the local subnet. What should you check next? a. Application settings b. DNS server c. IP address settings d. MTU settings

C is correct. You could also verify lower level connectivity.

Which is the most popular motherboard form factor for desktop computers? A. ATX B. Flex-ATX C. ITX D. XL-ATX

A

Which safety device is used to protect sensitive components from electrostatic discharge during transport and storage? A. Antistatic bags B. ESD straps C. ESD mats D. Self-grounding

A

Which LCD technology produces the more accurate colors? a. IPS b. TN c. VA

A is correct. Advantages of IPS include the best viewing angles of all LCD technologies and the ability to produce the most accurate colors.

You need to build a computer that will be used primarily for video editing. Which of the following components would be your top priority to dedicate money and system resources to? Select all answers that apply. a. High-end video card b. HDMI output c. Large fast hard drive d. Maximum RAM e. Multicore processor.

A and C are correct. The components you should focus on for a video editing computer include specialized video card, large fast hard drive, and dual monitors.

What type of expansion slots can you use to install an internal video card? Select all answers that apply. A. AGP B. mSATA D. PCIe D. USB dongle

A and C are correct. Video cards are manufactured for AGP and PCIe slots.

Which of the following video interfaces are analog only? Select all answers that apply. A. DVI-A B. DVI-D C. DVI-I D. VGA

A and D are correct. DVI-A and VGA are the two analog-only video interfaces. DVI-I can carry both digital and analog signals.

In both Android and Apple devices, which hardware is used to determine which way the phone is being held so they can adjust the screen orientation between portrait and landscape? a. Accelerometers b. Built-in calibration c. Geotracking d.GPS positioning e. Gyroscopes

A and E are correct. Both Android and Apple devices use accelerometers and gyroscopes to determine which way the phone is being held so they can adjust the screen orientation between portrait and landscape.

What issues might you try to fix by adjusting your router's QoS settings? Choose all that apply. a. A critical server keeps experiencing high network latency b.Large file downloads are frequently corrupted c. Network connections frequently drop d. Some Internet websites are frequently slow e.Voice over IP calls are choppy during busy network times

A and E are correct. QoS features are used to prioritize some traffic over others to decrease latency for time-sensitive data.

Which tools will you use to replace a power supply unit? Select all answers that apply. A. Electrostatic gloves B. Crimping pliers C. Multimeter D. Power supply tester E. Screwdriver

A and E are correct. You need electro-static gloves and a screwdriver (typically Phillips) to replace a PSU.

You need to build a computer that will be used primarily as a file and print server. Which of the following components would be your top priority to dedicate money and system resources to? Select all answers that apply. a. Fast, high-throughput NIC b. High-end cooling c. High-end video card d. Maximum RAM e. Multicore processor f. RAID array for data redundancy

A and F are correct. The components you should focus on for a file server include a fast, high-throughput NIC and a RAID array for data redundancy.

You work about 50% of the time at client sites and the other 50% of the time at your company's offices. Which configuration would be most beneficial? a. Laptop with docking station b. Laptop with cable lock c. Smartphone with headset d.Tablet with credit card reader e. Tablet with wireless keyboard

A is correct. A laptop with docking station would allow you to work more comfortably in an office environment with full size input and output devices, and wired network connection, then quickly disconnect to travel with just the laptop.

How many data channels are there in a BRI ISDN connection? a. 2 b. 3 c. 23 d. 30

A is correct. BRI has 2 data channels and 1 control channel. PRI has 23 or 30 channels.

Which display connection type uses three cables to carry the video signal? A. Component B. Composite C. Coaxial D. DisplayPort E. DVI

A is correct. Component video uses three cables (red, blue, and green) to carry the video signal and two cables (red and white) to carry the audio signal.

Which display projector technology has less pixilation, allowing for smoother motion graphics? a. DLP b.LCD

A is correct. DLP has less pixilation, allowing for smoother motion graphics.

Which touch screen technology requires you touch the surface with an electrically conductive object? a. Capacitive b. Resistive c. Surface acoustic wave

A is correct. In the capacitive system, it registers a decrease in electrical charge at the screen coordinates where it was touched.

What protocol is used to find the MAC address of a given IP address? a. ARP b. DHCP c. APIPA d. DNS

A is correct. It stands for Address Resolution protocol.

Which printer sharing method doesn't require a network or host computer connection? a. Bluetooth b. Ethernet c. USB

A is correct. Short-range wireless, such as Bluetooth or IR, require that the printer be powered on, but don't require a physical connection to a network or host computer.

Which physical interface is being replaced on Apple computers by Thunderbolt? A. FireWire B. HDMI C. Serial AT Attachment (SATA) D. USB

A is correct. The Thunderbolt physical interface replaced FireWire on Apple computers.

Which print technology is appropriate for printing on carbon-type multipart forms? a. Impact b. Inkjet c. Laser d. Thermal

A is correct. The print heads on an impact printer apply pressure to the form, causing it to transfer carbon from each layer to the layer below it.

On which printer technology do you need to replace the print heads due to physical wear? a. Impact b. Inkjet c. Laser d. Thermal

A is correct. The print heads on impact printers wear out after time.

Which router configuration actions would you take to heighten security? Select all answers that apply. a. Change the default user name and password b. Close unnecessary ports and services c. Configure QoS d. Disable remote administration e. Enable UPnP

A, B, and D are correct. You might want to enable UPnP or configure QoS for compatibility or performance reasons, but not for network security.

What kind of communications would be suitable for UDP? Select all answers that apply. a. DNS requests b. File transfers c. Online games d. Streaming video e. Website connections

A, C, and D are correct. DNS requests, online games, and streaming video tend to be time-sensitive and individual packets are disposable. File transfers and websites need TCP's in-order transmission and error correction.

Which expansion standard is no longer included in new computers? A. AGP B. ISA C. PCI D. PCIe

B

Which display issues does running a screen saver help prevent? Select all answers that apply. a. Artifacts b. Burn-in c. Dead pixels d. Distorted geometry e. Flickering f. Incorrect color patterns

B and C are correct. Screen savers help prevent burn-in and dead pixels.

A user calls to report their computer is "acting funny" and reboots when they are working. They notice the problem most often when they attempt to save their work. Which BIOS/UEFI diagnostic tests should you run to look for errors? Select all answers that apply. A. Battery test B. Hard disk test C. Memory test D. Start up test

B and C are correct. The hard disk and the memory tests look for problems that might occur during data processing or save functions.

Which network tools are found in Windows but not typically in Unix-like operating systems? Select all answers that apply. a. ifconfig b. ipconfig c. nbtstat d. ping e. traceroute

B and C are correct. ifconfig is not found in Windows, and traceroute is called tracert in Windows.

A coworker tells you a connection is unreliable and intermittent. Before even looking at it, what causes can you rule out? Select all answers that apply. a. Attenuation due to cable length b. Crossover cable used by mistake c. Crosstalk between wire pairs d. External interference e. Set to half-duplex

B and E are correct. A crossover cable wouldn't connect at all and a half-duplex cable would be slow or fail to connect. The others could all be intermittent.

You make and sell crafts at local art festivals. Which mobile device accessory would be appropriate? a. Cable lock b. Credit card reader c. Docking station d. Headset e. Power pack f. Wireless keyboard

B is correct. A credit card reader would allow you to process debit and credit card.

Which RAM feature uses an algorithm to detect single-bit and multi-bit memory errors? A. Buffering B. ECC C. Multiple channels D. Parity

B is correct. ECC modules use an algorithm to encode information in a block of bits it uses to detect both single-bit and multi-bit errors, and to correct single-bit errors.

You want to increase security on your WAP. Which change should you make? a. Disable WPA b. Disable WPS c. Enable SSID d. Enable TKIP

B is correct. For a secure network you want to use WPA/WPA2 encryption with AES rather than TKIP, and disabling SSID can make your network less conspicuous.

If you are working in a room with high ambient light, which display setting would you adjust to be able to see the screen better? a. Aspect ratio b. Brightness c. Refresh rate d. Resolution

B is correct. Increasing the brightness of a computer display, increases visibility of screen images in high ambient light situations. However, it does drain battery power on laptop computers more quickly.

Enabling WPS makes your wireless network ________. Choose the best answer. a. Less convenient to connect to, but more secure b. More convenient to connect to, but less secure c. Less convenient and less secure d. More convenient and more secure

B is correct. It might deter casual freeloaders, but determined hackers can break WPS encryption in a few hours using automated tools.

What troubleshooting step can resolve many issues, such as slow performance, a "stuck" application, or a non-functioning feature? a. Complete a hard reset b.Complete a soft reset c. Uninstall or reinstall apps d. Verify the feature is enabled e. Verify that both the wireless service is enabled and that you are connected

B is correct. Many issues, such as slow performance, a "stuck" application, or a non-functioning feature, can be resolved by powering the device down and then restarting. This closes all running applications and clears the cache.

Your network has a dozen computers, all sharing a single public IP address. One of them is an FTP server. What kind of rule will you need to configure to allow FTP users to connect from the internet? a. Port Address Translation b. Port Forwarding c. Port Triggering d. Universal Plug and Play

B is correct. PAT is why you need port forwarding, while port triggering and UPnP are designed for internal clients making outward connections.

Which storage method stores data sequentially? a. Compact Flash b. Magnetic tape c. Secure Digital Card d. USB flash memory

B is correct. Tape drives write information onto the magnetic tape in a sequential manner, advancing the tape forward to write additional information.

Which window would show you bindings for "Local Area Connection 2"? a. Ethernet Properties b. Local Area Connection 2 Properties c. Local Area Connection 2 Status d. Network Connections

B is correct. You could open the Local Area Connection 2 Properties window from the Status or Connections windows, too.

How does the 5GHz band differ from the 2.4GHz band? Select all answers that apply. a. Fewer non-overlapping channels b. Less interference from non Wi-Fi sources c. Longer range d. More interference from non-Wi-Fi sources e. More non-overlapping channels f. Shorter range

B, E, and F are correct. The 5GHz band allows more channels with less overlap and outside interference, but it's more easily attenuated so the range is shorter.

Your LAN has a high collision rate. What devices could segment the network and reduce collisions? Select all answers that apply. a. Hub b. Repeater c. Router d. Switch

C and D are correct. Hubs and repeaters are unintelligent devices and don't separate collision domains. While a router and switch both would reduce collisions, a router would also separate the network into multiple logical subnets.

Which of the following device cables allow for the maximum length between a single device and the host port? Select all answers that apply. A. eSATA B. FireWire C. Lightning D. USB

C and D are correct. Maximum cable lengths: eSATA 2 meters, FireWire 4.5 meters, Lightning (uses a USB 2.0 cable) 5 meters, USB 2.0 5 meters.

On your laptop, you can see a couple of hotspots, but not the one you want to connect to. What can you try to fix it? Select all answers that apply. a.Double-check the encryption standard being used. b. Make sure the adapter is turned on. c. Move the laptop closer to the WAP. d. Set the network to connect without SSID broadcast.

C and D are correct. You know the adapter is on since you can see other networks, but the WAP you want is either too far away or isn't broadcasting its SSID.

Which of the following Windows editions can receive incoming Remote Desktop connections? Select all answers that apply. a. Windows 7 Home Basic b. Windows 7 Home Premium c. Windows 7 d. Professional d. Windows 8.1 e. Windows Vista Business

C and E are correct. Any Windows edition can connect to a remote system, but only Business, Professional, Enterprise, and Ultimate editions can receive incoming Remote Desktop connections.

You have calculated the combined wattage needed by all the components in your system is 500 watts. What wattage PSU should you look for? A. 500 watts B. 750 watts C. 1,000 watts D. The largest one you can afford.

C is correct. A good rule of thumb for determining the wattage needed it to determine the combined wattage needed by all the components in your system (500 watts), then double that number to allow for component expansion and peak power spikes (1,000 watts).

What might cause display artifacts? a. Fixed image displayed on screen too long b. No voltage to image pixels c. Overheated graphics card d. Power problem

C is correct. A potential cause of artifacts is a overheated graphics card. Other potential causes include loose data connections and corrupt video card driver.

Why is it necessary that each pair of electrical signals on a twisted-pair cable corresponds to one physical wire pair? a. Because each pair has a slightly different length. b. Because otherwise it would be difficult to terminate the cable. c. Because otherwise it won't reduce crosstalk. d. Because the shielding won't be grounded properly otherwise.

C is correct. An electrical signal split between two twisted pairs won't protect against crosstalk.

Which short-range wireless interface is used with smartphone technology for point-of-sale payments? Bluetooth Infrared (IR) Near field communication (NFC) Radio Frequency (RF)

C is correct. Apple Pay, Google Wallet, Samsung Pay, and similar smartphone-based point-of-sale payment systems use NFC.

Which device connector is proprietary and uses an authentication chip to prevent unauthorized manufacturing? A. eSATA B. FireWire C. Lightning D. PS/2 E. USB

C is correct. Apple uses an authentication chip in their proprietary Lightning connector to prevent unauthorized manufacturing.

When you inspect your device's rechargeable battery, you notice there is a slight bulge in the case. What should you do? A. Continue to use the device until you receive a replacement battery. B. Remove the battery and then puncture the case to relieve the gas build-up before disposing of the battery. C. Carefully remove the battery, avoiding doing any damage to the case, and then recycle it properly. D. Carefully remove the battery and throw it in the trash.

C is correct. Bulging batteries can leak and damage the device or even explode and cause a fire. As such, they should be treated with care and disposed of properly.

How do you provide 225 watts of power to a PCIe expansion card? A. No additional power is needed. The PCIe slot provides all 225 watts. B. You combine the PCIe slot power with a PCIe 6-pin power connector. C. You combine the PCIe slot power with a PCIe 8-pin power connector. D. You combine the PCIe slot power with both the PCIe 6-pin and 8-pin power connectors.

C is correct. By default, a PCIe expansion slot draws 75 watts of power from the motherboard. The 8-pin PCIe connector provides an additional 150 watts for a total of 225 watts of power.

A user has complained that whenever she presses the space key on her keyboard, she gets a bunch of spaces not just one. Which keyboard setting do you adjust for her? a. Cursor blink rate b. Repeat rate c. Repeat delay

C is correct. By moving the repeat delay slider towards Long, you increase the amount of time she can hold down the space key without triggering the keyboard repeat feature.

What Internet connection technology uses the same wires as your analog phone line, but a separate communications channel? a. Cable b. Dialup c. DSL d. ISDN

C is correct. DSL uses a high frequency signal that doesn't interfere with normal voice communications.

You can connect to the Internet, but not to local network shares. What should you check first? a. DNS settings b. IP address settings c. Network location d. Windows Firewall

C is correct. If the network location is set to Public, Network discovery will be turned off by default.

Which of the following is a benefit of solid state drives over magnetic hard drives? A. Larger capacities available B. Less expensive per byte C. Faster boot and access speeds D. No maximum read/write limit

C is correct. In a magnetic hard drive, the actuator must move the read/write heads over the surface of the platters to retrieve data, making the process slower than SSD technology.

You know there's a fault somewhere on that 100m cable, but it looks fine from the outside. What tool would be the quickest way to guess how exactly where the flaw is? a. Loopback plug b. Multimeter c. Time-domain reflectometer d. Toner Probe

C is correct. It can guess by measuring signal reflections through the cable.

Which printer technology includes a maintenance kit that you should use after a certain number of pages have been printed? a. Impact b. Inkjet c. Laser d. Thermal

C is correct. It is recommended that you install the parts from a laser printer maintenance kit after your printer has reached a set number of pages printed.

Your CEO travels with his laptop that contains highly confidential and sensitive data. If it is lost, it is imperative that the data be protected and the laptop found and returned. Which BIOS/UEFI security feature best meets her needs? A. BIOS/UEFI passwords B. Hard drive encryption C. Lojack D. Secure boot E. Trusted platform module (TPM)

C is correct. Lojack is a data protection and theft recovery solution from Absolute Software Corporation that protects your device's data and can locate your lost or stolen device.

Which of the following could cause both ink streaks on your printed output and a faded print output? a. Build up of toner on the fuser rollers. b. Dirty laser toner cartridge head. c. Low toner. d.Printing in high-speed mode.

C is correct. Low toner can cause both ink streaks and a faded output.

What connector type is square-bodied with a single fiber? FC MT-RJ SC ST

C is correct. MT-RJ looks like a registered jack so is also squared off, but it has two fibers.

Which physical interface is used on sound cards to connect synthesizers and other electronic instruments? A. ⅛ inch (3.5 mm) colored ports B. FireWire C. MIDI D. S/PDIF

C is correct. Musical Instrument Digital Interface (MIDI) is used to connect synthesizers or other electronic instruments.

Your crowded building hosts a number of nearby Wi-Fi hotspots. The nearest neighbor is on an adjacent channel to your own. Is that a problem? a. Yes b. No c. Only if it's in the 2.4GHz band d. Only if it's in the 5GHz band

C is correct. On 2.4GHz networks you should use channels 1, 6, 11, or 14.

You need to make sure an adapter is configured to use the network's QoS settings. Which advanced Ethernet property should you check? a. Duplexing b. MTU c. Priority d. WoL

C is correct. QoS settings might be listed under a Priority property, depending on the driver.

Which service should you stop and restart if you are having difficulty clearing a print job stuck in a print queue? A. Printer Extensions and Notifications B. Printer Queue C. Print Spooler D. Remote Access Connection Manager

C is correct. You should stop and restart the Print Spooler service if you are having difficulty removing a stuck print job from a print queue.

Which of the following ports installed on the motherboard can be used to connect a display device to the computer? (Select all that apply.) A. PS/2 B. USB C. HDMI D. VGA E. DVI F. FireWire

C, D, E

Why might you change a computer's boot sequence? Select all answers that apply. A. Configure virtualization for your operating system. B. Disable a hard disk drive. C. Fix an operating system problem using a system recovery disk. D. Launch an operating system installation from an installation disk or network location. E. Switch to a second operating system.

C, D, and E are correct. Boot sequence controls the order in which the computer searches its disk drives for an operating system. You can use it to change the first boot device from the hard drive to an optical or flash drive in order to launch an operating system installation or recovery program, or to switch to between operating systems on different drives.

A frozen operating system on a mobile device can be cause by which? a. Excessive processor use b. Improper ventilation c. Lack of sufficient storage d. Low battery e. Security response to failed logon attempts f. Too many apps running at one time

C, D, and F are correct. A frozen system can be caused by a lack of sufficient storage, too many apps running at one time, or low battery.

Which of the following could be the cause of an optical drive not being recognized by the system? a. Dust or dirt on the laser. b. The buffer underrun feature is disabled. c. The burning software is corrupt. d. The drive's firmware needs to be updated.

D is correct. Operating system updates can cause problems with hardware. Manufacturers will issue firmware and driver updates to fix these problems.

Which power connector type is used to provide power to modern hard disk drives? A. 4-pin 12V ATX connector B. 4-pin peripheral Molex connector C. 6-pin PCIe connector D. 15-pin SATA connector

D is correct. The 15-pin SATA connector is used to provide power to modern hard disk drives.

Which display connection standard has the ability to also carry Ethernet network data? DisplayPort DVI-D dual-link DVI-I dual-link HDMI VGA

D is correct. The HDMI standard has options for a dedicated data channel for Ethernet networking.

Which connector type is used to connect both component and composite cables? A. BNC B. HD15 C. Mini-DIN D. RCA

D is correct. The RCA connector is used with both composite and component cables.

Which switch is used with the FORMAT command to create the label DATA to show up in Windows Explorer? A. /FS B. /N C. /Q D. /V

D is correct. The correct syntax to create the label DATA is FORMAT /V:DATA.

Which printer technology is commonly used in point-of-purchase printers? a. Impact b. Inkjet c. Laser d. Thermal

D is correct. Thermal printers are commonly used for sales receipts at point-of-purchase terminals.

In general, what does the RG number of a coaxial cable correspond to? a. Its frequency b. Its impedance c. Its maximum length d. None of the above

D is correct. Each standard encompasses a number of properties, but there's no linear relationship like with twisted-pair standards.

Which of the following set-top box display interface connections offers you the best picture quality? a. Composite video b. Component c. Digital audio via optical and coaxialdigital d. HDMI e. S-Video

D is correct. HDMI offers the best picture quality at 1080p.

What would be reasonable termination methods for a patch cable between a PC and a switch? Select all answers that apply. a. Crossover b. RJ-11 c. RJ-25 d. T568A e. T568B

D and E are correct. Only T568A and T568B should be used for Ethernet, and only straight-through cables should connect a PC and switch.

Which input devices are typically used for computer gaming? Select all answers that apply. a. Barcode reader b. Biometric device c. Digitizer d. Game pad e. Joy stick f. MIDI device

D and E are correct. The game pad and joy stick are typically used for gaming applications.

What Wi-Fi standard can operate in either the 2.4GHz or 5GHz band? Choose the best response. a. 802.11a b. 802.11b c. 802.11g d. 802.11n e. 802.11ac

D is correct. 802.11 a/ac are only 5GHz, while 802.11b/g are only 2.4GHz.

While the optical cables in the closet are outwardly identical, some have green connectors, and some have blue. Which one of the following is likely true? a. Blue is angled and green is straight b. Blue is MMF and green is SMF c. Blue is SMF and green is MMF d. Blue is straight and green is angled

D is correct. Both are probably SMF, but green signifies an angled connector.

Which DDR version has a curved contact edge designed to help prevent damage to the module during installation? A. DDR B. DDR2 C. DDR3 D. DDR4

D is correct. DDR4 has 288 pins, is slightly thicker than previous DDR modules, and has a curved contact edge to help prevent damage during installation.

You purchased a direct connection network printer. You attached the network cable to your router and turned on the printer. You have been able to print successfully to the printer for several months, but all of a sudden you receive an error that the printer is offline. Which of the following could be the cause? a. A print job is stuck in the queue. b. Ink or toner cartridge is empty. c. Paper jam in the printer. d. Printer doesn't have a static IP address.

D is correct. When a printer uses automatic IP addressing, it is not guaranteed the same address at renewal. If it received a new IP address, that could be causing your inability to connect.

What cable standard is acceptable for an older cable television link, but shouldn't be used on a cable modem? a. RG-6 b. RG-8 c. RG-11 d. RG-59

D is correct. You should use RG-6 or RG-11 for digital cable or cable modems. RG-8 is an obsolete Ethernet standard, and not useful for modern purposes.

Your company's custom server software application needs a TCP port to listen on. What port range should it be configured to use? a. Ephemeral b. Private c. System d. User

D, User, is correct, but it should make sure not to choose a commonly used one.

Which of the following motherboard components is used to take data from input/output devices and pass it on to the CPU? A. Northbridge chip B. SATA connector C. Data bus D. Southbridge chip

D.

You might hear distortion in the sound when you play an audio file at the wrong sample rate and bit depth. True or false?

That's True. You can adjust the sample rate and bit depth setting if you hear sound distortion during playback.

A "cable modem" is a modem in the sense that it connects to the Internet, but isn't a modem in the technical sense. True or false?

That's false. A cable modem works very differently from a dial-up modem, but still modulates and demodulates complex signals.

Generic print drivers give you all the functionality of the device they are installed for. True or false?

That's false. A generic print driver will give you the basic functionality for your device. Full functionality is available by installing software from the printer manufacturer.

A good rule of thumb for selecting the wattage for your power supply is to determine the combined wattage needed by all the components in your system and add them all together. True or false?

That's false. A good rule of thumb for determining the wattage needed it to determine the combined wattage needed by all the components in your system, then double that number to allow for component expansion and peak power spikes.

If your system is reporting memory errors, it is caused by an undersized PSU or a PSU that is failing. True or false?

That's false. All symptoms that could be caused by an undersized or failing PSU are not exclusive to power supply issues. There could be other problems causing the memory errors.

In general, cable television uses a threaded F connector, while cable Internet uses a BNC connector. True or false?

That's false. Both of these usually use F connectors, while BNC is used for specialty A/V and obsolete Ethernet connections.

WPA-Enterprise uses stronger encryption algorithms than WPA-Personal. True or false?

That's false. Both use the same encryption methods, just Personal distributes the keys to anyone with a shared password, while Enterprise uses a separate authentication server with individual login credentials.

If your CPU is overheating, it will fail to boot. True of False?

That's false. If your CPU is overheating, you might have intermittent shut down problems as well.

If you have an touchscreen that has inaccurate response to your touch, it is broken and you must replace it. True or false?

That's false. Inaccurate response in a touchscreen can also be caused by a dirty screen or by miscalibration.

PCI and PCIe expansion cards are hot-swappable. True or false?

That's false. Internal expansion cards are not hot-swappable.

When installing a SATA drive as the second drive in a PC, you must set the jumper to the slave position. True or false?

That's false. Jumpers to specify drive order are used on IDE drives.

MIMO devices use multiple antennas transmitting on different channels to boost bandwidth. True or false?

That's false. MIMO uses multiple transmitters and receivers, but all on the same channel.

If you have a blank monitor screen, it is most likely due to monitor failure. True or false?

That's false. Many blank display issues are caused by power failure, loose data cables, or an incompatible or corrupt graphics driver.

In network terms, all wireless access points are also routers. True or false?

That's false. Many wireless access points come with integrated routers, but only because they're multifunction devices.

Mini-PCIe cards that are contained in an externally accessible compartment are hot-swappable. True or false?

That's false. Mini-PCIe cards are not hot-swappable regardless of where they are located in the laptop.

Multimode fiber is better suited for long distances than single-mode. True or false?

That's false. Multimode fiber is cheaper, but doesn't work over such long distances.

With Cloud printing, you send your print job to a special email address assigned to your printer. True or false?

That's false. On older printers with remote printing capabilities, you sent the print job to a special email address that was routed to your printer. Today's technologies use proprietary services to route your print job over the Internet to your printer.

Modern KVMs and KVMPs present POST keyboard errors if a booting computer is not selected on the KVM. True or false?

That's false. Only mechanical rotary and push-button switches cause POST keyboard errors if the booting computer is not currently selected on the KVM.

If you have a RAID implementation with data parity, you don't need data backups. True or false?

That's false. RAID can guard against drive failure, but not other problems that could corrupt or delete your data.

RAM is considered non-volatile memory because the data it holds is maintained when power is removed from the computer or device. True of False

That's false. RAM is volatile memory. ROM is non-volatile memory.

Smart TV come preloaded with content choices and additional content cannot be added. True or false?

That's false. Smart TVs come preloaded with access to popular content, but you can add additional content at any time through the device's app store.

If speakers need a power source, it must be from a wall outlet. True or false?

That's false. Speakers can get their power from a wall outlet or from a USB port.

The power management features in your BIOS/UEFI allow you to configure what the computer does during Standby and Hibernate modes. True or false?

That's false. The BIOS/UEFI power management settings control what happens when the computer goes into, or awakens from, a misconfigured Standby or Hibernate mode.

Dual stack operation lets you use IPv6 as long as both hosts support it, even if routers between do not. True or false?

That's false. Unless every step along the way supports IPv6, you'll need to use translation or tunneling.

Internal and external SATA interfaces are identical. True or false?

That's false. While internal and external data speeds and transfer rates are identical for SATA and eSATA, the cabling and connectors are different.

You can use an ATX 20-pin motherboard power connector on a 24-pin motherboard power socket by just leaving the end 4-pins empty. True or false?

That's false. You can use a 20+4-pin motherboard power connector on an older-style 20-pin motherboard power socket by not connecting the extra pins, however, you can't use a 20-pin power connector on a 24-pin socket.

If you are having an issue with the responsiveness of a touch screen, you should attempt to clean the screen using a soft cloth and alcohol-based cleaner. True or false?

That's false. You clean a touch screen with a water-dampened, soft, lint-free cloth.

A build-up of toner on the fuser rollers can cause the toner to not fuse properly to the paper. True or false?

That's true. A build-up of toner on the fuser rollers can interfere with the fusing process.

A Layer 2 switch is essentially a bridge with more than two ports. True or false?

That's true. A switch can be considered just the most common type of bridge.

If you are installing an IDE optical drive, you must configure the drive jumpers. True or false?

That's true. An IDE optical drive is set as a slave drive on the IDE controller using the jumper on the drive.

If you install a Blu-ray drive, it will be able to read CDs, DVDs, and Blu-ray optical discs. True or false?

That's true. As each new technology was introduced, drive manufacturers maintained backwards compatibility with optical discs users already owned.

You have a user who has a touchpad on their laptop. They complain that when they double-tap on the touchpad, it moves the cursor but doesn't select or open an item like it should. You can fix this by slowing down the double-click speed. True or false?

That's true. By slowing down the double-click speed, you increase the amount of time given to the user between their taps for the computer to still register it as a double-click instead of two individual clicks.

Equipment on your side of the demarc may or may not be your responsibility. True or false?

That's true. CPE like a cable modem might be owned and managed by the ISP, even if it's kept on the customer side of the demarc.

While you can make a radio conversation full-duplex, Wi-Fi is always half-duplex. True or false?

That's true. Cellular telephone networks give full duplex operation by sending and receiving on different frequencies.

All blue USB ports are version 3.0, but not all USB 3.0 are blue. True or false?

That's true. Color is not required as a port designation, so a USB 3.0 port does not need to be blue. However, if you have a blue port, it is USB 3.0.

Even if your router uses DHCP, it might be able to make sure a given client always receives the same IP address. True or false?

That's true. DHCP itself won't guarantee a different client gets the same address, but some routers allow DHCP reservations that identify clients by their MAC addresses.

ExpressCards are hot-swappable. True or false?

That's true. ExpressCards are hot-swappable. You don't need to power down the computer prior to installing them in the ExpressCard slot on your laptop.

Most small LANs today incorporate both peer-to-peer and client-server elements. True or false?

That's true. For example it might have a dedicated file server or printer, but limited central management.

Defense in depth is a good idea for any network, but not all layers are equally important on every network. True or false?

That's true. For example, a small network might not really be separated into internal and perimeter networks.

You can't access BIOS/UEFI using a wireless keyboard. True or false?

That's true. If you need access to a keyboard to access BIOS/UEFI, you must use a wired keyboard.

You can corrupt the data on your flash drive or memory card if you remove it from your computer or device incorrectly. True or false?

That's true. If you remove the device while it is saving data, you can corrupt the data.

For a local server, you might not need the full domain name to perform a DNS lookup. True or false?

That's true. If you're querying a local DNS server you might just be able to use the host name rather than the FQDN.

The process of rebuilding a RAID drive from parity data can cause a RAID drive to fail. True or false?

That's true. Many times RAID drives are identical and were purchased at the same time. If one drive fails, the I/O intensive rebuild process could put enough wear and tear on another drive to cause it to fail.

If after you install a new SATA hard drive, you receive a "hard drive not found" error, one reason for the error could be due to no boot disk being available. True or false?

That's true. One reason you receive a "hard drive not found error" is there is no bootable disk available.

Even if you use other web browsers, you might only need to configure proxy settings for Internet Explorer. True or false?

That's true. Other browsers tend to use IE's "system settings" for proxies by default.

If you want multiple people to be able to print your document without worrying about the formatting changing, you should use a virtual printer. True or false?

That's true. The Print to PDF and Print to Image virtual printers, both preserve document formatting and allow other users to print a document with its original formatting.

If your power supply unit has failed, the computer will fail to boot. True or false?

That's true. While all failure to boot errors cannot be attributed to a PSU failure, the computer won't boot if your PSU fails.

If the colors on your monitor appear faded, muted, too dark, or too light, you can adjust the color depth using Windows Control Panel Display applet. True or false?

That's true. You can use the Calibrate Color wizard in the Control Panel Display applet to adjust color depth.

Order the following cellular data technologies from slowest to fastest, in general terms. a. 3G b. 4G LTE c. EDGE d. HSPA+

The correct order is EDGE, 3G, HSPA+, then 4G LTE.

Order the following wireless encryption standards from strongest to weakest. a. WEP b. WPA-AES c. WPA-TKIP d. WPA2-AES e. WPA2-TKIP

The correct order is WPA2-AES, WPA-AES, WPA2-TKIP, WPA-TKIP, then WEP. Remember that if it's all you can use, even WEP is better than no security.