IT Essentials v7.0 – A+ 220-1001 Certification Practice Exam Answers

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IT Essentials (Version 7.00) – IT Essentials A+ 220-1001 Certification Practice Exam

1. What characteristic best describes a stylus?

  • an input device for playing games and flight simulation applications
  • an input device that digitizes an image by placing the document on a flat glass surface and scanning from underneath
  • a pen-like tool that allows input by touching the surface of the screen
  • a device that allows the use of one set of keyboard, mouse, and monitor to control multiple computers

2. A network administrator would like to use one keyboard, mouse, and display to monitor and control multiple servers in the server room. Which device should the administrator purchase to accomplish this?

  • VR headset
  • KVM switch
  • joystick
  • digitizer

Explanation: A keyboard, video, mouse (KVM) switch is a hardware device that can be used to control more than one computer from a single set of devices, often called a console, consisting of a keyboard, video monitor, and mouse.

3. A small company is setting up a new remote satellite office. Employees in the remote office need to access network resources from the main office of the company. An IT manager is deciding whether to deploy thin or thick clients at the remote office. What is the key technical factor to be considered?

  • network sharing requirements
  • internet connection bandwidth between the main and remote office
  • RAID level required
  • requirements for the display screens between thin and thick clients

Explanation: Thick clients are standard computers that have their own operating system, applications, and local storage. They are stand-alone systems and all of the processing is performed locally on the computer. On the other hand, thin clients are typically low-end network computers that rely on remote servers to perform all data processing. Thin clients in a remote office will require a reliable, high-bandwidth, internet connection to a server. Typically thin clients do not have any internal storage and have limited local resources.

4. A customer asks for a solution to a printer problem that is beyond the knowledge level of the technician. What should the technician do?

  • Try to fix the problem anyway.
  • Gather as much informatio​n as possible and escalate the problem.
  • Tell the customer to call the printer manufacturer to fix the problem.
  • Ask the customer to call again when another technician can provide a solution to the problem.

Explanation: Trying to fix a problem that is beyond the knowledge level of the technician may create additional problems.

5. After consulting the manufacturer manuals, a technician applies a series of recommended solutions that resolve a problem with a workstation computer. What is the next step in the troubleshooting process that the technician should perform?

  • Verify the solution and confirm full system functionality.
  • Test the theory of probable cause.
  • Document the findings, actions, and outcomes.
  • Determine the next steps to resolve the problem.

Explanation: After the recommended solutions have been applied to resolve the problem, full system functionality should be verified and preventive measures implemented if applicable. This would be followed by documenting the solution and actions. Determining the next steps to resolve the problem and testing the theory of probable cause have already been completed in this scenario.

6. What is a characteristic of DDR SDRAM?

  • It transfers data twice per clock cycle compared to once per clock cycle for SDRAM.
  • DDR SDRAM modules have double the number of pins of SDRAM memory modules.
  • It is dynamic memory whereas SDRAM is static memory.
  • It operates at double the voltage of SDRAM memory.

7. A user has just upgraded a gaming system with 8GB of DDR3 800 MHz RAM and still finds that the system lags during gameplay. The system has a high end graphics card, liquid cooling, and a 7,200 rpm EIDE drive. What can the user do to improve system performance?

  • Change the voltage setting for the RAM.
  • Replace the EIDE drive with an SSD.
  • Replace the liquid cooling system with a high speed ball bearing fan cooling system.
  • Add two more case fans.

8. A user has connected a USB 3.0 device to a computer using a 3 ft (1m) USB 3.0 cable. However, instead of an expected data transfer rate of up to 5 Gb/s, the user notes a data transfer rate of no more than 450 Mb/s. What is the most probable reason for this lower than expected data transfer rate?

  • The device was connected to a USB 2.0 port on the computer.
  • The cable used exceeds the maximum length that allows USB 3.0 to transfer data at 5Gb/s.
  • The device was connected to a USB 1.1 port on the computer.
  • The USB 3.0 cable is faulty.

Explanation: USB 2.0 allows transmission speeds up to 480 Mb/s and USB 1.1 allows transmission rates of up to 12 Mb/s in full-speed mode. A transmission speed of 450 Mb/s would indicate that a USB 2.0 port was used on the computer because USB devices can only transfer data up to the maximum speed allowed by the specific port. The generally accepted maximum length of a USB 3.0 cable is 9.8 ft (3m) which is three times the length of the cable used in this example, so the cable length is acceptable for full USB 3.0 capability. If a USB cable is faulty then no data transfer at all is likely to occur.


9. A user is connecting a home entertainment system and wants to use one cable to carry all the digital video and audio signals from the source device to the LCD TV. What type of cable should the user use?

  • DVI-D
  • HDMI
  • VGA
  • S-Video

Explanation: A DVI-D cable will carry video digital signals only, and the S-Video and VGA cable types carry only analog video signals. An HDMI cable will carry both the audio and video digital signals.


10. A user needs to connect a cable to the PC to deliver digital video signals only. Which type of cable should be used?

  • VGA
  • HDMI
  • DVI-D
  • composite
  • Mini-HDMI

11. After questioning a user about the problems being experienced with a PC operating system, the support technician suspects that a recent service pack installation has failed. Which step of the troubleshooting process has the technician just concluded?

  • Test the theory to determine the cause of the problem.
  • Document findings, actions, and outcomes.
  • Establish a theory of probable cause.
  • Establish a plan of action to resolve the problem.

Explanation: By suspecting that an operating system service pack has failed to install successfully, the technician has established a theory of probable cause of the problem. The next step would be to test the theory to determine the cause of the problem, followed by establishing a plan of action to resolve the problem. Documentation is the final step and would occur after the solution has been verified and the system restored to full functionality.

12. A user is setting up a home wireless network. Which type of device must the user have in order to establish the wireless network and provide access to the internet for multiple home devices?

  • hub
  • switch
  • patch panel
  • wireless router

Explanation: A wireless router connects multiple wireless devices to the network. It will then aggregate the internet access requests from home devices to the internet.

13. A tourist is traveling through the countryside and needs to connect to the internet from a laptop. However, the laptop only has Wi-Fi and Ethernet connections. The tourist has a smartphone with 3G/4G connectivity. What can the tourist do to allow the laptop to connect to the internet?

  • Use the smartphone to access web pages and then pass the web pages to the laptop.
  • Enable tethering and create a hotspot.
  • Use an Ethernet cable to connect the smartphone to the laptop.
  • Use the smartphone to access the internet through a satellite connection and then share that connection with the laptop.

Explanation: Many cell phones have the ability to connect to other devices through a feature called tethering. The connection can be made using Wi-Fi, Bluetooth, or a USB cable. Once a device is connected, it is able to use the cellular connection of the phone to access the internet. When a cellular phone allows Wi-Fi devices to connect and use the mobile data network, this is called a hotspot.

14. A user wants to purchase a monitor with a viewing area that is 44 inches wide by 16 inches high. What aspect ratio is this?

  • 12:24
  • 11:4
  • 13:5
  • 22:8

15. Which design specification criterion is most important when designing a computer that will be a thin client whose applications are accessed from a remote virtual server?

  • amount of RAM
  • amount of local hard drive storage
  • number of processor cores
  • speed of network card

16. A technician is building a workstation that will be used for virtualization. Which two components would the technician use? (Choose two.)

  • dual monitors
  • high-end graphics card
  • liquid cooling
  • maximum amount of RAM
  • multicore processors

Explanation: Dual monitors are useful in a video editing station. Liquid cooling assemblies and high-end graphics cards are normally required in high performance gaming systems. A virtualization workstation would need maximum RAM and CPU cores.


17. Which three components would a technician use in building a CAD workstation? (Choose three.)

  • TV Tuner card
  • high-end sound card
  • specialized graphics card
  • SSD
  • Windows 7 Home edition
  • maximum RAM

Explanation: A TV Tuner card is normally used for an home entertainment system and a high end sound card is normally used for a gaming system. Windows 7 Home edition would not be the operating system of choice on a CAD station. A CAD station would normally require a specialized graphics card, large amounts of fast RAM, and a high performance storage device, such as SSD.


18. Which specification would be most important to consider when designing a typical business workstation?

  • high-end sound card
  • number of displays
  • types of applications
  • network connectivity speed

19. A technician suspects that a power supply is faulty. How can it be checked?

  • by checking the temperature of the power supply
  • by using a multimeter
  • by taking apart the power supply
  • by powering up the PC after disconnecting each connector in turn

Explanation: The temperature of the power supply does not indicate if it is operational. A PC technician should never open a power supply as dangerous voltages might still be present even when disconnected. Disconnecting the connectors in turn and powering the PC is not a recommended practice. In the absence of a power supply tester, a multimeter can allow to check if voltages are present.

20. What transfers heat away from the processor first?

  • cooling fins
  • thermal compound
  • CPU fan
  • case fans

21. Which sequence of steps is required to correctly install a heat sink and fan assembly onto a CPU in a desktop PC?
1. Apply a small amount of thermal compound to the CPU.
2. Align the heat sink and fan assembly retainers with the holes on the motherboard.
3. Place the fan and heat sink assembly onto the CPU socket.
4. Tighten the fan and heat sink assembly retainers to secure the assembly in place.
5. Connect the assembly power cable to the CPU fan connector on the motherboard.

1. Connect the assembly power cable to the CPU fan connector on the motherboard.
2. Align the heat sink and fan assembly retainers with the holes on the motherboard.
3. Place the fan and heat sink assembly onto the CPU socket.
4. Tighten the fan and heat sink assembly retainers to secure the assembly in place.
5. Place the correctly aligned CPU gently into the socket.

1. Place the correctly aligned CPU gently into the socket.
2. Align the heat sink and fan assembly retainers with the holes on the motherboard.
3. Place the fan and heat sink assembly onto the CPU socket.
4. Tighten the fan and heat sink assembly retainers to secure the assembly in place.
5. Connect the assembly power cable to the CPU fan connector on the motherboard.

1. Apply a small amount of thermal compound to the CPU.
2. Align the heat sink and fan assembly retainers with the holes on the motherboard.
3. Place the correctly aligned CPU gently into the socket.
4. Tighten the fan and heat sink assembly retainers to secure the assembly in place.
5. Connect the assembly power cable to the CPU fan connector on the motherboard.

Explanation: The CPU must be securely installed in its socket on the mother board before the thermal paste is applied, the heat sink and fan assembly is installed, and the fan is connected to the CPU fan power connector on the motherboard.

22. A PC has an older optical drive and two newer hard disk drives Which two connector types would have to exist on the power supply unit to power on all these devices? (Choose two.)

  • Molex
  • Berg
  • SATA
  • PS/2
  • FireWire

23. A technician is required to replace a faulty power supply in a desktop PC. The PC motherboard has a 24-pin ATX socket but the only available replacement power supply is one with a 20-pin connector. Delivery of new power supplies with 24-pin connectors is not expected until the next day, but the user requires the PC to be operational as soon as possible. What can the technician do in these circumstances?

  • The technician can install the power supply and insert the 20-pin connector into the 24-pin socket on the motherboard.
  • Power supplies with 20-pin connectors are not compatible with motherboards with 24-pin sockets, so the technician can do nothing until the new power supplies arrive.
  • The technician can use a 20-pin-to-24-pin adaptor to connect the power supply to the motherboard.
  • The technician can recover the 24-pin connector from the faulty power supply and attach it to the replacement power supply for connection to the motherboard.

24. A technician needs to install a new power supply in a PC that has one IDE optical drive, one SATA hard drive, and one PCIe graphics adapter that requires additional power. How many unique power connectors will the power supply require in order to connect to these devices?

  • 2
  • 3
  • 4
  • 5

25. Which three PC desktop functions are typically provided on the front panel and must be connected to the motherboard? (Choose three.)

  • network activity light
  • PC power button
  • drive activity light
  • USB connectors
  • CPU temperature indicator
  • audio power button

Explanation: USB connectors, PC power button, and drive activity light are the most common PC front panel functions. If available, the network activity light, CPU temperature indicator, and audio power button are not typically located on the front panel of the computer.


26. Which two hardware features would a technician monitor within the BIOS if a computer was suspected of overheating? (Choose two.)

  • CPU clock speed
  • CPU fan speed
  • motherboard voltage
  • hard drive speed
  • Trusted Platform Module

27. A user has a computer with a single hard drive and a RAID adapter installed. Which additional component is necessary to complete the RAID installation?

  • a USB connection
  • a floppy disk drive
  • one or more additional hard drives
  • a DVD drive

Explanation: RAID installations require two or more hard drives. Floppy drives and DVD drives cannot form part of a RAID array. A USB connector may be used to access external hard drives that are not part of a RAID array.


28. A computer technician has recommended a data storage system that combines data striping and parity. The user has a limited budget and is prepared to forego performance to implement this system. Which RAID system would meet these requirements?

  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 0+1

Explanation: RAID 5 best meets the required storage and cost specifications. RAID 0 provides data striping without redundancy. RAID 1 uses disk mirroring and has a high cost. RAID 0+1 combines data striping and mirroring but also has a high cost.


29. A technician opens up a PC to work on it, and finds that it is very dusty inside. What should the technician do?

  • Ignore the dust, as it does not affect the computer.
  • Use a lint-free cloth sprayed with a cleaning solution to remove excess dust.
  • Use a can of compressed air to remove excess dust.
  • Use a moistened cotton swab to remove excess dust.

30. A user replaced a PC CPU with a faster one, but now the PC displays a BSOD on bootup. What is the problem?

  • The CPU voltage is set too high.
  • The CPU multiplier has not been set.
  • The front side bus is set too low.
  • The CMOS settings have not been saved on bootup.

31. A computer locks up frequently, and no error message can be seen on screen. The problem occurs every time the user attempts to restart the computer. What is the most likely reason for this problem?

  • The index service is not running.
  • The power supply has failed.
  • A startup file has become corrupted
  • The computer is overheating.

Explanation: If the power supply has failed the PC would turn off or could display a stop error message if the failure is partial. The index service not running does not cause a PC to lockup. No startup file is likely to be corrupted as the issue appears during normal operation. An overheading CPU would cause the computer to lockup.

32. What are two possible causes of a computer running slowly? (Choose two.)

  • The hard drive has been partitioned.
  • The hard drive is full.
  • The CPU has been overclocked.
  • The RAM is not compatible with the motherboard.
  • Not enough RAM is installed in the system.

Explanation: Not having enough RAM or the computer overheating can cause a computer to run slowly. An overclocked CPU would tend to speed up the computer. If the RAM is not compatible with the motherboard, the computer would not start up. Partitioning a hard drive does not cause the computer to run more slowly.

33. Which type of network consists of several geographically dispersed networks that cover a large area?

  • LAN
  • WAN
  • PAN
  • SAN

Explanation: A Wide Area Network (WAN) is a collection of geographically dispersed networks.
A Local Area Network (LAN) is a network contained in a single floor, building, or campus.
A Personal Area Network (PAN) is a network that reaches at most 10 meters.
A Storage Area Network (SAN) is a network specifically constructed to connect storage devices to each other.


34. A network technician is checking a computer to see if the DHCP client is working correctly. The technician issues the ipconfig /all command. Which two parameters should the technician review? (Choose two.)

  • description
  • default gateway
  • host name
  • media state
  • subnet mask

35. Which protocol automates assignment of IP addresses on a network, and which port number does it use? (Choose two.)

  • DHCP
  • DNS
  • SMB
  • 53
  • 67
  • 80

Explanation: DNS uses port 53 and translates URLs to IP addresses. SMB provides shared access to files and printers and uses port 445. Port 80 is used by HTTP. HTTP is a protocol used to communicate between a web browser and a server.

36. A technician is setting up a network in a new room. What is the best device to use to connect the PCs to each other and to the rest of the LAN?

  • gateway
  • firewall
  • switch
  • router

37. Which device converts digital signals to analog signals and vice versa?

  • hub
  • switch
  • modem
  • router

38. Which networking device transmits data to all ports regardless of the destination address?

  • router
  • switch
  • hub
  • firewall

Explanation: The purpose of a hub is to extend the cabling range by regenerating and repeating signals. Switches,routers, and firewalls send data to the destination by examining the header of the packet to determine the exit ports.

39. Which device will prevent data from flooding out of every port with the exception of broadcast traffic and traffic to unknown destination addresses?

  • modem
  • hub
  • router
  • switch

40. Which two types of connector are used for fiber optic cable? (Choose two.)

  • ST
  • RJ-45
  • RJ-11
  • SC
  • RCA
  • BNC

41. What are plenum rated cables used for?

  • for cables that are used between buildings
  • for cables that are installed inside the floors and ceilings of buildings
  • for cables that are used to connect workstations to wall sockets
  • for cables that are used to connect computers back-to-back

Explanation: In case of a fire, a nonplenum rated cable could carry the fire from one part of a building to another. Plenum rated cables contain special plastic material that retards fire and produces less smoke when subjected to high temperature. These make them suitable to install in areas where air is circulating.

42. Which tool is more commonly used to check the wire mapping on a Category 5e UTP cable once it is terminated on both ends?

  • cable tester
  • tone probe
  • multimeter
  • osciloscope

Explanation: The most commonly used tool to check the wire mapping on a UTP cable is a cable tester. The multimeter is more commonly used to check voltages. A tone probe is more commonly used for cable identification. The osciloscope is more commonly used to test signals.

43. hich security mode supports robust encryption, and can be enabled with password authentication (personal) or server authentication (enterprise)?

  • WEP
  • WPA
  • WPA2
  • TKIP

44. What is the expected behavior of an ADSL service?

  • The download rate is faster than the upload rate.
  • The upload rate is faster than the download rate.
  • The download and upload rates are the same.
  • The user can select the upload and download rates based on need.

45. A customer who travels frequently wants to know which technology is the most suitable for being connected to the corporate network at all times at low cost. Which network technology would a network administrator recommend?

  • satellite
  • ISDN
  • cellular
  • microwave

Explanation: Cellular networks can provide access to data networks at any given time. ISDN and microwave networks require a fixed location. Satellite would work, but is very expensive.

46. A technician is troubleshooting a PC unable to connect to the network. What command should be issued to check the IP address of the device?

  • tracert
  • ping
  • nslookup
  • ipconfig

Explanation: The commands tracert and ping are used to test the connectivity of the PC to the network. The command nslookup initiates a query to an Internet domain name server.

47. Because of limited space on a laptop keyboard, some keys have a dual-purpose. What are these keys called?

  • control keys
  • alternate keys
  • special purpose keys
  • function keys

Explanation: Special function keys allow the user to access a second function on a dual-purpose key by pressing the Function (Fn) key at the same time the dual-purpose key is pressed.

48. On a laptop keyboard, which three functions can typically be accessed through the use of special function keys? (Choose three.)

  • volume settings
  • wireless functionality
  • display brightness
  • Windows Start menu
  • Task Manager
  • Control Panels

49. Which three components can a docking station make available to a laptop that a port replicator does not? (Choose three.)

  • PS/2 ports
  • additional hard drive
  • additional optical drive
  • USB ports
  • PCI cards
  • networking ports

Explanation: USB ports, PS/2 ports, and networking ports are found on both port replicators and docking stations. Only docking stations have the ability to connect a laptop to PCI cards, additional hard drives, and optical drives.

50. A technician attempts to increase the brightness of a laptop screen by using the function keys but the attempt fails. What could be the problem?

  • The laptop battery is bad.
  • The video display driver is corrupt.
  • The inverter has failed.
  • The LCD screen has failed.

51. Where is the integrated Wi-Fi antenna typically located in a laptop?

  • on the keyboard
  • on the system board
  • integrated into the wireless card
  • above the screen

Explanation: The integrated Wi-Fi antenna is typically located above the screen and is connected to the wireless card by an antenna wire which is located along the sides of the screen.

52. A technician wants to use Remote Desktop to configure another PC. Which firewall port on the remote PC should be open in order for Remote Desktop to work?

  • 23
  • 20 and 21
  • 80
  • 115
  • 389
  • 3389

53. What are the two widths of internal hard drives in laptops? (Choose two.)

  • 1.8 inches
  • 2.5 inches
  • 3.5 inches
  • 5.25 inches
  • 3.8 inches

Explanation: Laptop hard drives are 1.8 inches or 2.5 inches in width. Desktop hard drives are 3.5 inches in width. 5.25 inches is the width of optical drives in desktop computers. No components have a width of 3.8 inches.

54. Which laptop component is required to be replaced or upgraded by a technician rather than by a computer user?

  • inverter
  • RAM
  • hard drive
  • battery

Explanation: RAM, a hard drive, and a battery are all CRUs and can be replaced by the customer. A power inverter is a FRU and requires specialized expertise to replace and should be done by a technician.

55. Which two components of a laptop can be replaced by the user? (Choose two.)

  • speakers
  • RAM
  • keyboard
  • screen
  • battery

56. Which type of storage would be best in a tablet computer that belongs to a small child?

  • PATA
  • eSATA
  • SATA
  • SSD

57. A technician is troubleshooting a network connectivity problem. Pings to the local wireless router are successful but pings to a server on the Internet are unsuccessful. Which CLI command could assist the technician to find the location of the networking problem?

  • tracert
  • ipconfig
  • msconfig
  • ipconfig/renew

58. A technician troubleshooting a network problem has used CLI commands to determine that a computer has not been allocated a correct IP address from the DHCP server. Which command can the technician use to solve this problem?

  • ping
  • ipconfig/release
  • tracert
  • ipconfig/renew

59. What process takes place in a laser printer after the drum is conditioned for the new latent image?

  • charging
  • exposing
  • developing
  • fusing
  • transferring

60. What type of printer requires the ribbon to be changed when producing faded and light characters?

  • inkjet
  • impact
  • laser
  • thermal

Explanation: Inkjet, laser, or thermal printers do not use ribbons.

61. Which two methods are used to directly connect mobile devices such as tablets and smartphones to a data network? (Choose two.)

  • WiMax
  • cellular communications
  • Bluetooth
  • wired Ethernet
  • Wi-Fi

Explanation: Mobile devices connect wirelessly to data networks using either Wi-Fi or a telecommunication provider cellular network. Bluetooth is used to connect to peripherals or other local devices over very short distances. Ethernet is a wired network access technology and is not used by mobile devices. Mobile devices do not typically implement WiMAX technology.

62. For mobile devices, what are two advantages of using flash memory storage technology that is the equivalent of solid state drives? (Choose two.)

  • light weight components
  • power efficiency
  • ease of upgrading
  • high capacity
  • flash memory storage is field-serviceable

Explanation: The light weight and power efficiency of flash memory components are advantages of using the equivalent of a solid state drive for storage in mobile devices. Flash memory typically does not have the capacity of magnetic storage devices such as hard disk drives. To reduce weight, mobile devices typically do not contain discrete SSD units and the individual flash memory components that are used are not field-serviceable and cannot be upgraded.

63. Which two mobile device components are field replaceable? (Choose two.)

  • touch screen
  • Subscriber Identity Module card
  • internal SSD
  • battery
  • accelerometer sensors

Explanation: Mobile devices do not typically have any field serviceable components. Field replaceable components are usually limited to the battery, the SIM card, and a memory card.

64. Which setting must be turned on in order to share a printer in Windows 7?

  • Sharing
  • Share this Printer
  • Windows Firewall
  • File and Printer Sharing

65. What is an advantage of using a printer that is connected to a hardware print server compared with a computer-shared printer?

  • A computer that shares a printer always allows for faster printing of documents.
  • A hardware print server is always available to all users.
  • A computer that shares a printer always prioritizes the printing tasks.
  • A hardware print server will have more memory to store the print job than a computer will have that shares a printer.

Explanation: A PC sharing a printer is usually running multiple tasks simultaneously besides printing and is therefore slower to process and send documents to the printer. A disadvantage of hardware print servers is that they frequently contain less storage space for the print queue compared with a dedicated print server or a computer-shared printer.

66. A technician wants to allow many computers to print to the same printer, but does not want to affect the performance of the computers. What will the technician do to achieve this?

  • Use a software print server.
  • Use a computer-shared printer.
  • Use a hardware print server.
  • Install a second printer.

Explanation: A hardware print server allows many users to print to the same printer without using the resources of any computer. A computer-shared printer uses a computer to manage all of the print jobs. There is no software print server. Installing a second printer would reduce the print jobs on any one computer, but would still use computer resources.

67. A user is reporting that an inkjet printer is printing colors different from what the printer should be printing. The printer has separate cartridges for each color and the user changed the cyan cartridge recently. What is the action that could fix the problem?

  • Perform a printer head cleaning.
  • Check for loose printer cables.
  • Use a different type of paper.
  • Purchase a maintenance kit.

Explanation: A head cleaning routine is needed if the cartridges get clogged or if they are new. Typically, inkjet printers print different colors if one of the cartridges is not able to function properly.

68. Which two field replaceable units could be found in a laser printer maintenance kit? (Choose two.)

  • fuser assembly
  • pickup rollers
  • power supply
  • paper trays
  • drum
  • toner cartridge

69. What is best used to clean the heating element on a thermal printer?

  • mild solvent
  • soap foam
  • isopropyl alcohol
  • distilled water

Explanation: Cleaning the heating element regularly with isopropyl alcohol will extend the life of the printer. Using any of the other substances could damage the printer.

70. A user notices that there is intermittent wireless connectivity on a laptop that is running a wireless PCI Express Micro card using the wireless 802.11n standard. What should the user do to fix the problem?

  • Replace the PCI Express Micro card with a Mini-PCIe card.
  • Replace the PCI Express Micro card with a Mini-PCI card.
  • Move the laptop to a new location.
  • Replace the OS on the laptop.

Explanation: In this situation the intermittent loss of wireless connectivity could be due to the distance from the access point or some obstruction in the signal path. Moving to a new location would remedy the problem. Replacing the wireless PCI Express Micro card or replacing the OS will not resolve the problem.

71. A technician connects a new LCD monitor for the first time and finds the display very pixilated. What is a possible solution to this problem?

  • Set the screen to native resolution.
  • Change the monitor video connector from DVI to HDMI.
  • Power cycle the monitor.
  • Set the screen resolution to VGA.

72. Which wireless encryption method is the least secure?

  • WEP
  • WPA
  • AES
  • TKIP

73. What kind of tool or substance is better to use to remove spilled toner on a laser printer?

  • mild detergent solution
  • compressed air
  • regular vacuum cleaner
  • special vacuum cleaner

74. Which feature will assign a computer an IP address even if there is no working DHCP server in the network?

  • DNS
  • ARP
  • WINS
  • APIPA

Explanation: APIPA is Automatic Private IP Addressing. If there is no working DHCP server, the computer will use a random IP address from the 169.254.X.X class B range. ARP, WINS, and DNS serve other networking purposes.

75. A user reports that a laser printer is printing shadow images and letters. Which part should the technician replace to correct this problem?

  • network cable
  • pick up roller
  • drum
  • fuser

Explanation: The drum is a metal cylinder that holds an electrostatic charge to pick up the toner powder. If the drum is defective, then the charge on the cylinder will not hold the correct latent image to attract the toner.

76. Match the power connector to the device. (Not all options are used.)
Question

ITE 6.0 A+ Cert Practice Exam 1 Question 001

Answer

ITE 6.0 A+ Cert Practice Exam 1 Answer 001

77. Refer to the exhibit. Match the type of expansion slot to the letter shown in the graphic. (Not all options are used.)

IT Essentials (Version 7.00) - IT Essentials A+ 220-1001 Certification Practice Exam 18

IT Essentials (Version 7.00) – IT Essentials A+ 220-1001 Certification Practice Exam 18

Answer

IT Essentials (Version 7.00) – IT Essentials A+ 220-1001 Certification Practice Exam 18 Answer

78. Refer to the exhibit. Match the letter found in the exhibit with the description. (Not all options are used.)

IT Essentials (Version 7.00) - IT Essentials A+ 220-1001 Certification Practice Exam 16

IT Essentials (Version 7.00) – IT Essentials A+ 220-1001 Certification Practice Exam 16

Question & Answer:

IT Essentials (Version 7.00) – IT Essentials A+ 220-1001 Certification Practice Exam 16 Answer

79. Match the connector type to its use. (Not all options are used.)
Question

ITE 6.0 A+ Cert Practice Exam 1 Question 004

Answer

ITE 6.0 A+ Cert Practice Exam 1 Answer 004

80. Math the port number or numbers to the protocol. (Not all options are used.)
Question

ITE 6.0 A+ Cert Practice Exam 1 Question 005

Answer

ITE 6.0 A+ Cert Practice Exam 1 Answer 005

81. A technician is building a thick client workstation that would be used to run a database and wants to ensure the best protection against errors. What type of memory would be best suited for this?

  • ECC
  • RDRAM
  • DDR3
  • DDR2

82. Which two motherboard components connect to the Northbridge chipset? (Choose two.)

  • NIC
  • USB 2.0 devices
  • USB 3.0 devices
  • FireWire devices
  • RAM
  • video card

83. Which two motherboard components are directly managed by the Southbridge chipset? (Choose two.)

  • RAM
  • CPU
  • video card
  • USB 3.0 devices
  • FireWire devices

84. Which RAID level allows for extension of a dynamic volume without any redundancy?

  • 0
  • 1
  • 2
  • 3
  • 4
  • 5

Explanation: A RAID array 0 allows for striping over a variety of disks without providing for any redundancy. This allows for faster read and write functions because they are spread over multiple drives and thus adds the benefit of the simultaneous use of multiple actuator arms of the various hard drives.

85. Which adapter would a technician install in a desktop computer to enable a video signal to be recorded from a video recorder to the computer hard drive?

  • video adapter
  • TV tuner card
  • video capture card
  • network interface card

86. Which connector would be used for a laptop external hard drive?

  • DVI
  • eSATA
  • PATA
  • SATA
  • S/PDIF

87. A user wants to purchase a monitor that will be light, consume the least amount of power, and provide deep dark levels in the display. Which display type would best meet these requirements?

  • plasma
  • LCD
  • LED
  • OLED

88. Which resolution would provide the best visual quality on a plasma monitor?

  • native
  • XGA
  • VGA
  • SVGA

89. Match the port number or numbers to the protocol. (Not all options are used.)

90. A network administrator is setting up the wireless network in a small office. The administrator wants to choose a wireless protocol standard that takes advantage of 5 GHz throughput but is also compatible with a few existing devices that operate at 2.4 GHz. Which wireless standard should the administrator deploy?

  • 802.11ac
  • 802.11n
  • 802.11a
  • 802.11b
  • 802.11g

Explanation: 802.11n operates at both 2.4 GHz and 5 GHz and is backward compatible with 802.11b and 802.11g. 802.11b and 802.11g operate at 2.4 GHz only. 802.11a and 802.11ac operate at 5 GHz only.

91. A network administrator is setting up a device for two objectives. The first objective is to store frequently visited web content on the device so that the local users can access the content quickly. Another objective is to achieve a certain level of network security by hiding the internal IP addresses. Which device should the administrator set up?

  • web server
  • proxy server
  • authentication server
  • firewall

Explanation: A proxy server has the authority to act as another computer. A popular use for a proxy server is to act as storage or cache for web pages that are frequently accessed by devices on the internal network. In addition, a proxy server can effectively hide the IP addresses of internal hosts because all requests going out to the internet are sourced from the IP address of the proxy server.

92. A small company is setting up a web server to promote products on the internet. The company network administrator is searching for an online service that can provide the domain name and name resolution services. Which type of online service can provide such functions to the company?

  • DHCP service
  • DNS service
  • proxy service
  • web service

Explanation: An online DNS service can provide domain name registration and name resolution for the registered domain services. This service eliminates the need for setting up a fully functional DNS server in the small company.

93. When a wireless network in a small office is being set up, which type of IP addressing is typically used on the networked devices?

  • private
  • network
  • public
  • wireless

Explanation: In setting up the wireless network in a small office, it is a best practice to use private IP addressing because of the flexibility and easy management it offers.

94. A company is deploying a wireless network in the distribution facility in a Boston suburb. The warehouse is quite large and it requires multiple access points to be used. Because some of the company devices still operate at 2.4GHz, the network administrator decides to deploy the 802.11g standard. Which channel assignments on the multiple access points will make sure that the wireless channels are not overlapping?

  • channels 1, 5, and 9
  • channels 2, 6, and 10
  • channels 1, 6, and 11
  • channels 1, 7, and 13

Explanation: In the North America domain, 11 channels are allowed for 2.4GHz wireless networking. Among these 11 channels, the combination of channels 1, 6, and 11 are the only non-overlapping channel combination.

95. A support desk technician is asking a customer a series of questions about a problem connecting to the network. Which step of the troubleshooting process is the technician applying?

  • Establish a plan of action to resolve the problem.
  • Test the theory to determine cause.
  • Establish a theory of probable cause.
  • Identify the problem.

Explanation: Before any solutions can be proposed or tested, the problem must first be identified. This is done by gathering information from the customer by asking questions and clarifying details of the problem.

96. A new computer workstation has been installed in a small office. The user of the workstation can print a document using a network printer on the LAN, but cannot access the Internet. What is a possible cause of the problem?

  • The TCP/IP stack is not functional.
  • The DHCP server IP address is misconfigured.
  • The gateway IP address is misconfigured.
  • The workstation is configured with a static IP address.

Explanation: The fact that the workstation can print at a networked printer indicates that the TCP/IP stack is functional. However, that the workstation cannot communicate with external networks indicates that the most likely problem is the incorrect default gateway address. If the workstation is configured to obtain an IP address automatically, the DHCP server address does not to be configured.

97. What is a result when the DHCP servers are not operational in a network?

  • Workstations are assigned with the IP address 0.0.0.0.
  • Workstations are assigned with the IP address 127.0.0.1.
  • Workstations are assigned with IP addresses in the 169.254.0.0/16 network.
  • Workstations are assigned with IP addresses in the 10.0.0.0/8 network.

Explanation: When workstations are configured with obtaining IP address automatically but DHCP servers are not available to respond to the requests, a workstation can assign itself an IP addresses from the 169.254.0.0/16 network.

98. A user complains to a technician that none of the apps that use a GPS are working properly. What should the technician do first if the GPS function is suspect?

  • Calibrate the gyroscope.
  • Replace the GPS antenna.
  • Ensure the Location setting is enabled.
  • Replace the gyroscope.

Explanation: A global positioning system (GPS) is used for geographic location, navigation, and specialized search results. Both iOS and Android devices have a Location or Location services setting to control whether the GPS is turned on. The WiFi/GPS antenna may need to be replaced if the location service is turned on but GPS still does not work.

99. A teenager has asked the grandparents for a specific type of mobile technology. The grandparents do not remember the specific name of the device, but remember that the teenager wants to receive a cell phone call on it. Which technology is likely to be the one the teenager wants?

  • GPS
  • e-reader
  • smart watch
  • VR headset

Explanation: A smart watch commonly has many of the same functions of a smart phone such as receiving/placing calls, playing online games, and using applications such as a calculator or geolocator.

100. A teenager is using a remote control unit to control a TV set. Which wireless technology is most likely being used?

  • Bluetooth
  • IR
  • NFC
  • hotspot

Explanation: Infrared (IR) is a wireless connection technology. It can be used to control other IR-enabled devices remotely, such as a TV, set-top box, or audio equipment.

101. A sales representative returns to the office and connects the laptop to an external display device. The display device is powered on, but the laptop image is not showing on the display device. What are two things that should be checked? (Choose two.)

  • The screen refresh rate is set correctly.
  • The laptop is sending the video signal to the external device.
  • The video cable is firmly connected.
  • The laptop is not in sleep mode.
  • The LCD backlight is properly adjusted.

Explanation: For an external display device to display a laptop screen, the video cable should be connected firmly on both ends. In addition, the laptop needs to send the video signal to the display device.

102. Which mode would be best suited for a laptop that is displaying oversized images and icons?

  • SVGA
  • VGA
  • XGA
  • native

Explanation: Native resolution will provide the optimal resolution supported by the display on a laptop.

103. A user complains that the laptop display is flickering. Which two problems could cause this situation? (Choose two.)

  • The track pad is dirty.
  • Power to the pixels has been cutoff.
  • The inverter is damaged or malfunctioning.
  • The screen refresh rate is set incorrectly.
  • The LCD backlight is not properly adjusted.

Explanation: The problem of a flickering laptop display is most likely caused by the image not refreshing fast enough or by a malfunctioning/damaged inverter.

104. There is a shared laptop in the conference room of a company. One day an employee turns on the laptop to prepare for joining a videoconference. However, the image on the laptop display is pixilated. What should the user do first to correct the problem?

  • Adjust the screen refresh rate.
  • Set the display to native resolution.
  • Set the display to the lowest resolution.
  • Calibrate the LCD backlight.

Explanation: The native resolution would provide the best image display. In this scenario, the user should try the native resolution first and then adjust to other resolution options if needed.

105. A technician is called to work on a laser printer that prints vertical lines on every printed page. Which laser printer part should be checked first?

  • wiper blade
  • RAM
  • toner cartridge
  • pickup rollers

Explanation: A vertical line could be a sign of a faulty drum or a problem with the toner cartridge. The toner cartridge is the easiest one to test if it is faulty and can be reused later if it turns out to not be the problem.

106. A technician is called to troubleshoot a problem where a user claims that none of the print jobs from this morning have printed. The technician sees that there is only one printer installed in the device list and it is a network printer shared with other users. What should the technician check?

  • the fuser assembly
  • the IP address of the printer
  • the user rights to the printer
  • the print queue

Explanation: A networked printer might have a backed up print queue caused by the printer being offline, out of paper, or a paper jam. There might also be a document stuck in the print queue causing all of the others after it to not print. Check the printer for any issues first then check the print queue and see if sending a different document to the top of the queue or canceling the document at the top of the queue frees up the printer.

107. What are two functions of hypervisors? (Choose two.)

  • to allocate physical system resources to virtual machines
  • to manage virtual machines
  • to partition the hard drive to run virtual machines
  • to share the antivirus software across the virtual machines
  • to protect the host from malware infection from the virtual machines

Explanation: The hypervisor does not protect the hosting OS from malware. Neither does it allow sharing software across virtual machines. The hard drive of the supporting computer does not need to be partitioned to run virtual machines. The hypervisor creates and manages virtual machines on a host computer and allocates physical system resources to them.

108. A computer technician creates a virtual environment. Which security measure should the technician take for the virtual machine running Windows 10, if any?

  • Each virtual machine should have antivirus software installed.
  • A hardware firewall should be placed between each virtual machine and the internet or it will be necessary to ensure that the Windows firewall is enabled on each virtual machine.
  • The virtual machine must use the same secure passwords as the host computer uses.
  • Because each virtual machine contains an operating system that is different from what is on the host computer, no security software is needed.

Explanation: Virtual machines are susceptible to the same security threats that a host computer is. All security measures that are recommended for a computer in a home or business environment should also be taken within the virtual environment.

109. Which two minimum requirements should be met for a technician to enable Hyper-V on a Windows 10 computer? (Choose two.)

  • 16 GB RAM
  • 32- or 64-bit operating system
  • 64-bit operating system
  • 32-bit operating system
  • 8 GB RAM
  • 4 GB RAM

Explanation: Windows Hyper-V in Windows 10 has the following minimum requirements:

  • 64-bit operating system
  • BIOS virtualization support and hardware enforced data execution prevention
  • 4 GB RAM
  • Windows 10 Enterprise, Pro, or Education editions
  • CPU support for VM Monitor Mode Extension (VT-c on Intel CPUs)

110. A technician is setting up a new VM. How will internet connectivity be provided to the VM?

  • through an IPsec tunnel
  • through a virtual NIC that connects through the host computer NIC
  • through a virtual private network
  • through port forwarding configuration on the firewall of the operating system used within the VM

Explanation: In creating a virtualized environment, the hypervisor creates a virtual NIC that works with the host physical NIC. It virtualizes the network resource to be shared with all VM virtual NICs in providing network connectivity.

111. Which component would be required when deploying a virtual desktop to a corporate user?

  • minimum of 6 GB of RAM
  • virtual NIC
  • metered service
  • SSD

Explanation: A virtual desktop is one where the desktop and all applications are run from a server. A virtual desktop uses a virtual NIC.

112. What would a technician require in order to install a hypervisor on a client machine?

  • virtualization software
  • multiple storage drives
  • a server housed by a cloud service provider
  • an SSD

Explanation: A hypervisor is used to create a virtual machine (VM). The hypervisor can be part of an operating system such as Windows Hyper-V or it can be downloaded from a virtualization vendor such as VMWare or Oracle.

113. Which character of the Cloud model provides easy monitoring, controlling, reporting, and billing for both the provider and customers?

  • rapid elasticity
  • broad network access
  • on-demand self-service
  • resource pooling
  • measured service

Explanation: With measured service of the Cloud model, the resource usage can be easily monitored, controlled, reported, and billed to provide full visibility to both the Cloud service provider and customers.

114. A company uses cloud services and is setting up a new switch supplied by the cloud provider. Which cloud model is used by the company?

  • SaaS
  • DaaS
  • IaaS
  • PaaS

Explanation: Whenever a company has an infrastructure device like a router or switch in the company cloud solution, the cloud model being used is IaaS.

115. A company owns servers for a particular corporate application. The servers are housed in an external data center. The company has an agreement with a cloud provider to spin up additional servers for the same application during peak usage. Which cloud model is the company using?

  • community
  • hybrid
  • private
  • public

Explanation: A private cloud is a cloud-based service where the company manages the devices or applications within the cloud. They are just located away from the business at a provider site. If a company is using a public cloud, a provider manages the devices or the applications or both for the company. A hybrid cloud is a combination of two types of clouds, and a common practice is a private and public cloud combination.

116. A company has a few employees that are designers. The designers do not have the CAD application loaded on their local computer. Instead, the designers use a CAD application hosted by the application developer. Which type of virtualization is the company using?

  • IaaS
  • DaaS
  • PaaS
  • SaaS

Explanation: Software as a Service (SaaS) is a cloud computing type that provides access to one or more applications through a server. This server is not owned or managed by the company using the application.

117. A professor is searching through a large box of unused cables and connectors in the classroom. As a test, the professor hands a ribbon cable to a student. The cable has 3, 40-pin connectors. The professor tells the student the cable connects to the motherboard and internal drives. What type of cable is the student holding?

  • fiber optic cable
  • IDE cable
  • HDMI cable
  • serial cable

118. After continuous morning use, a computer suddenly reboots without the intervention of the user. What are the two most likely hardware parts that could cause this problem? (Choose two.)

  • hard drive
  • CPU
  • RAID
  • display port or display
  • power supply
  • surge strip

119. A user needs to connect to Cisco.com but does not know the IP address for this website. What type of server will translate the website name into an IP address?

  • DHCP
  • DNS server
  • FTP server
  • print server

120. A technician is searching through a storage locker and finds a cloud-based network controller. What is the purpose of this device?

  • It is a device that allows a network administrator to manage many remote networking devices from a central location.
  • It connects networks and forwards traffic to remote networks by using IP addressing information.
  • It is placed between two or more networks and protects data and equipment from unauthorized access.
  • It uses radio waves to provide network access to wireless devices.

121. A school is installing a new shared printer but the printer is not showing up on the list of available printers. What should the technician do to resolve the issue?

  • Reset the page counter.
  • Connect the printer using wireless.
  • Check the vibration of the crystals.
  • Install a USB hub.
  • Manually add the printer IP address.

122. A receptionist is complaining about the following printer issue: The print queue seems to be functioning properly, but the printer does not print. What are two possible causes of this issue? (Choose two.)

  • The print queue is overloaded.
  • There is a bad cable connection.
  • A test page was never printed.
  • The wrong printer type has been selected.
  • The printer has an error such as out of paper, out of toner, or paper jam.

123. When a co-worker steps into another office, the co-worker notices that the computer is making a loud clicking noise and asks about it. The technician is contacted to investigate. Which device should the technician check first?

  • monitor
  • hard drive
  • CPU fan
  • CPU

Explanation: If a hard drive makes repeated clicking or tapping sounds when the computer is idle, the hard drive is failing. Make a backup and replace the drive as soon as possible. Invalid boot disk errors and files that suddenly will not open are symptoms of hard drive issues.

124. A user reports that a drive is no longer there. The technician asks the user to demonstrate the problem. Within the application, the user demonstrates that the drive, that was present in the save options yesterday, is now no longer an option. What should the technician do to see if the drive is recognized by the operating system?

  • Use Device Manager.
  • Boot into UEFI/BIOS and see if the drive appears.
  • Bring up a command prompt and type ipconfig.
  • Open a web browser and type the following: http://127.0.0.1. Verify if both drives appear in the list.

125. A technician is working on a laptop and a key on the keyboard is not responding as it should. What is a possible solution for this situation?

  • Ensure that Bluetooth is not activated.
  • Clean with compressed air.
  • Recharge the battery.
  • Check the display settings.

126. An art appreciation college professor wants to apply for a technology grant to allow students to have a virtual tour of the Louvre Museum in Paris, France. Which mobile technology should the professor request to accomplish this goal?

  • smart watch
  • e-reader
  • VR headset
  • GPS

Explanation: A virtual reality (VR) headset can be used in a training situation for educational purposes such as touring a remote location, military training, or medical training. Gaming applications are also popular. A person wears a special headset that projects a slightly different image to each eye, allowing the image to be viewed in 3D. The person may also wear headphones and a microphone depending on the application.

127. In setting up a small office network, the network administrator decides to assign private IP addresses dynamically to workstations and mobile devices. Which feature must be enabled on the company router in order for office devices to access the internet?

  • UPnP
  • MAC filtering
  • QoS
  • NAT

Explanation: Network Address Translation (NAT) is the process used to convert private addresses to internet-routable addresses that allow office devices to access the internet.

128. A computer technician has successfully returned a laptop to full operation and verified system functionality. Actions the technician performed included modifying the registry and applying patches to the operating systems. What is the next step in the troubleshooting process that the technician should do?

  • Document the solution.
  • Consult manufacturer manuals and repair logs.
  • Reboot the computer.
  • Re-attach and test all peripherals.

Explanation: The technician is ready to conclude the troubleshooting process by documenting the solution. The manufacturer manuals and repair logs would be consulted to establish a plan of action and resolve the problem before the solution has been applied. Rebooting the computer, and re-attaching and testing all peripherals, would occur during the testing and verification stage after the solution has been implemented.

129. A user complains that the image on a laptop looks dull and pale. What is the most likely cause of the problem?

  • The LCD backlight is not properly adjusted.
  • The display properties are set incorrectly.
  • The screen refresh rate is set incorrectly.
  • The inverter is damaged or malfunctioning.

Explanation: The problem of a laptop screen that looks dull and pale is most likely caused by an improper LCD backlight setting.

130. A user reports that a computer is unable to print on an inkjet printer. The technician has determined that there is no paper in the paper bin. What is the next step in the troubleshooting process?

  • Determine the exact cause.
  • Document the findings.
  • Verify system functionality.
  • Establish a plan of action.

Explanation: What the technician just did was to determine the exact cause. What is next in the troubleshooting process is to establish a plan of action.

131. A user reports that a “Document failed to print” message appears every time the network printer is restarted. What could be a cause of the problem?

  • The fuser is faulty.
  • The IP address assigned to the printer is a duplicate IP address.
  • The IP address on the printer is statically assigned.
  • The user rights to the printer have been configured incorrectly.

Explanation: Networked printers are commonly assigned a static IP address. A DHCP reservation can be made and the MAC address of the printer can be entered at the DHCP server so that the printer receives the same IP address each time, or a technician can just manually enter an IP address into the printer. Each device must have a unique IP address, and a duplicate one would cause a network printer to not function.

132. A computer technician is asked to configure a workstation with two virtual machines. What would be the purpose of the configuration?

  • to allow multiple applications, that require more RAM than is installed, to be active simultaneously
  • to increase the performance of the computer
  • to have two separate operating systems running at the same time on one computer
  • to have redundancy in case of hard drive failure

Explanation: In the process of virtualization, virtual machines are created. Different operating systems can be installed on each virtual machine without interfering with one another.

133. What is meant by a cloud service being metered?

  • The company is allowed unlimited access to a service during specific periods of time.
  • The company is charged a monthly or annual fee for a specific service.
  • The company is charged based on the amount of service used.
  • A special device is attached to the demarcation point where the service provider network ends and the company network starts.

Explanation: An unmetered cloud service is one where the service is free or it is charged on a monthly or annual basis. A metered cloud service has the charge based on how much the service is used. A company can also have an unmetered service up to a particular point and then the company is assessed additional charges based on how much additional services the company used.

134. A company is setting up one new laser printer on every floor. What type of server will store the print jobs in a queue and then spool them to the device when it is ready?

  • FTP server
  • DHCP
  • print server
  • DNS server

135. A technician is searching through a storage locker and finds a router. What is the purpose of this device?

  • It uses radio waves to provide network access to wireless devices.
  • It connects networks and forwards traffic to remote networks by using IP addressing information.
  • It is placed between two or more networks and protects data and equipment from unauthorized access.
  • It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

136. An office assistant in a law firm is trying to print many large legal documents but is getting “memory overload” error messages from the printer. What should the technician do to resolve the issue?

  • Connect the printer using wireless.
  • Update the OS.
  • Replace the pickup roller.
  • Update the BIOS.
  • Add more memory to the printer.

137. Which statement is correct about applying firmware updates?

  • The firmware updates can be installed automatically using the Windows Service Pack utility.
  • Firmware updates should not be included as part of the preventive maintenance program.
  • Firmware updates are sometimes irreversible.
  • It is possible to use the Roll Back feature to reverse the change.

Explanation: Firmware updates can make the hardware unusable if not performed correctly. Sometimes it is not possible to revert to the original firmware once the update has been performed because of how the changes are applied to the EPROM technology.

138. What are two possible causes of a computer running slowly? (Choose two.)

  • Not enough RAM is installed in the system.
  • The computer is overheating.
  • The hard drive has been partitioned.
  • The RAM is not compatible with the motherboard.
  • The CPU has been overclocked.

Explanation: Not having enough RAM or the computer overheating can cause a computer to run slowly. An overclocked CPU would tend to speed up the computer. If the RAM is not compatible with the motherboard, the computer would not start up. Partitioning a hard drive does not cause the computer to run more slowly.

139. A Mac user wants to connect an iMac as a display for a MacBook Pro. What type of cable would provide a high-speed (up to 20 Gbps) direct connection of the two devices?

  • Lightning cable
  • Video Graphics Array (VGA)
  • Thunderbolt cable
  • telephone cable

140. A technician has been called in to investigate a problem with the computer rebooting randomly throughout the day. What two pieces of hardware could cause this problem? (Choose two.)

  • CPU
  • BIOS
  • RAID
  • surge strip
  • wireless NIC
  • power supply

141. A technician is setting up a server that requires two connections between the client and the server, one for commands and replies, the other for the actual transfer of files. What type of server will accomplish this task?

  • print server
  • DNS server
  • FTP server
  • web server

142. All documents printed by the laser printer in the branch office have ghost or shadow images appearing on the paper. What should the technician do to resolve the issue?

  • Update the OS.
  • Update the BIOS.
  • Connect the printer using wireless.
  • Replace the drum.
  • Configure the printer for duplex printing.

143. While working in a computer training room, the technician notices that one computer emits a loud clicking noise. Which device should the technician check first?

  • monitor
  • internal speaker
  • optical drive
  • hard drive

Explanation: If a hard drive makes repeated clicking or tapping sounds when the computer is idle, the hard drive is failing. Make a backup and replace the drive as soon as possible. Invalid boot disk errors and files that suddenly will not open are symptoms of hard drive issues.

144. A user reports that a drive is no longer there. The technician asks the user to demonstrate the problem. Within the application, the user demonstrates that the drive, that was present in the save options yesterday, is now no longer an option. What should the technician do to see if the drive is recognized by the operating system?

  • Open a web browser and type the following: http://127.0.0.1. Verify if both drives appear in the list.
  • Use File Explorer.
  • Remove the drive and attach it to the SATA port used by the SSD. Reboot the computer and see if the drive is recognized.
  • Bring up a command prompt and type ipconfig.

145. A technician is working on a laptop and GPS is not functioning. What is a possible solution for this situation?

  • Check the display settings.
  • Check the fan on the GPU.
  • Verify that airplane mode is not activated.
  • Recharge the battery.

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