CompTIA CompTIA A+ 220-801 Questions & Answers

• Question 591:

  A user's laptop screen is extremely dim. A technician attempts to alter the brightness using function keys and the BIOS, but the screen never changes in brightness. Which of the following is MOST likely the cause?

  A. Battery failure

  B. Bulb failure

  C. Display driver is corrupted

  D. Backlight failure

  Correct Answer: D

  Reference. http://www.laptoprepair101.com/laptop/2007/09/05/troubleshooting- laptop-with-backlight-failure/

• Question 592:

  Which of the following expansion slots is characterized by having an x16 speed?

  A. CNR

  B. PCI

  C. PCIe

  D. AGP

  Correct Answer: C

  The PCIe xXX is the amount of lanes the slot has. so x16 has 16 lanes, x8 has 8 lanes and so on.

  The physical slot on x4, x8, and x16 are all the same.

  If it says 2 PCIe x16 slots it means that there are 2 slots on the board that are capable of 16 lanes. If it says 2 PCIe X16 (and then in brackets says x16, x4 or x8, x8) it means when you have 1 slot being used it uses all 16 lanes for that 1 slot.

  But if you plug multiple things into the PCIe slots (most common 2 GPU's) it will divide the lanes between the cards. So that (x16, x4) you will have the first GPU running with 16 lanes, and the second GPU running with 4 lanes.

• Question 593:

  A laptop is not charging the battery and occasionally shuts off even when the power cord is plugged in. This is a symptom of a bad:

  A. DC jack.

  B. hard drive.

  C. cooling system.

  D. battery.

  Correct Answer: A

  Reference. http://www.laptopjacks.com/

• Question 594:

  Which of the following typically cannot be upgraded in a laptop?

  A. Video card

  B. Hard drive

  C. RAM

  D. Wireless card

  Correct Answer: A

  Reference. http://lockergnome.net/questions/130140/why-can-t-you-upgrade-laptop- hardware

• Question 595:

  Which of the following is the proper way to remove a PCMCIA card from a laptop running Windows XP?

  A. Click on the safely remove hardware icon, stop the device, and remove the card

  B. Push the eject button on the card slot

  C. Grasp the card firmly and slowly pull it from the slot on the laptop

  D. In the Control Panel, stop the device service, and then remove the card

  Correct Answer: A

  Reference. http://www.ask.com/question/how-does-a-pcmcia-card-work

• Question 596:

  A customer asked the technician to upgrade the RAM in a laptop. Upon inspection of the RAM bay, the technician only found one RAM slot, however the laptop is specified to have two. Where would the other memory slot be typically located?

  A. Inside the display bezel

  B. Second hard drive bay

  C. Above the PC card slot

  D. Under the keyboard

  Correct Answer: D

  In some laptop models, the memory slot is situated right beneath the keyboard. It can be accessed through the door at the bottom of the laptop.

• Question 597:

  Which of the following should a technician check FIRST on the laptop if the system's battery is not being charged?

  A. CMOS battery

  B. DC-in jack

  C. AC-in jack

  D. Breaker for the wall jack

  Correct Answer: B

  Check DC-in jack. If the laptop battery is not charging, the first thing to do is to check DC-in and see if it is seated properly.

• Question 598:

  A keyboard has been replaced on a laptop. Which of the following is the MOST likely cause that the keyboard does not work?

  A. The keyboard data cable was not connected properly.

  B. The keyboard is not compatible with the laptop.

  C. The keyboard needs updated drivers.

  D. The keyboard is defective.

  Correct Answer: A

  There is a small data cable beside the keyboard which is connected to the board. Check the data cable and make sure it is connected securely.

• Question 599:

  Which of the following should a technician do NEXT, if the laptop's internal speakers do not work, after replacing the motherboard due to a video issue?

  A. Update the video drivers

  B. Replace the speakers

  C. Check the speaker's connection to the motherboard

  D. Verify that the speakers are compatible with the replacement motherboard

  Correct Answer: C

  There is a tiny flat speaker connection just above the keyboard. It is so tiny that technicians often ignore it. Make sure the speaker is connected to the motherboard properly.

• Question 600:

  Which of the following devices is necessary to provide power to a laptop LCD screen?

  A. PCMCIA card

  B. Backlight

  C. Inverter

  D. PCI-E card

  Correct Answer: C

  Reference. http://www.ehow.com/how-does_5011808_inverter-work-laptop.html