CompTIA CompTIA A+ 220-801 Questions & Answers

• Question 621:

  When replacing the CPU in a laptop, which of the following locations should have thermal grease applied?

  A. Connection points on the system board

  B. Bottom of the CPU

  C. Top of the CPU

  D. Axis of the cooling fan

  Correct Answer: C

  Thermal grease should always be applied to the top of the CPU. The smooth surface is the top not the one with the pins. The pins go into the socket whereas the heat sink is placed on top of the CPU. Between the heat sink and the cpu, apply the grease for maximum thermal dissipation.

• Question 622:

  Which of the following features is used for security in laptops and can be used by BitLocker in Windows 7 to encrypt the hard drive?

  A. Virtualization extensions

  B. BIOS password

  C. TPM

  D. CMOS

  Correct Answer: C

  Reference. http://en.wikipedia.org/wiki/Trusted_Platform_Module

• Question 623:

  Which of the following items describes the function of an inverter module used in a laptop?

  A. Supplies DC to the backlight

  B. Supplies AC to the LED panel

  C. Converts AC to DC for the backlight

  D. Converts DC to AC for the backlight

  Correct Answer: D

  Reference. http://www.wisegeek.com/what-is-a-laptop-inverter.htm

• Question 624:

  Which of the following is the MOST likely light source for a laptop screen? (Select TWO).

  A. CCFL

  B. CRT

  C. Plasma

  D. Matrix

  E. LED

  Correct Answer: AE

  Reference. http://www.tomshardware.com/reviews/ccfl-led-backlight,2930.html

• Question 625:

  Joe, a user, reports that his laptop display is very faint and hard to read. Which of the following is the MOST likely cause?

  A. The video card is failing.

  B. The display screen has been damaged.

  C. The backlight has failed.

  D. The inverter is bad.

  Correct Answer: C

  Reference. http://en.wikipedia.org/wiki/LED-backlit_LCD_display

• Question 626:

  Which of the following is MOST likely to have a physical switch on a laptop that allows it to be turned off without going into the BIOS?

  A. External display

  B. Webcam

  C. Overclocking

  D. Wireless

  Correct Answer: D

  Reference. http://www.nmbgeek.com/blog/how-to-turn-laptop-wireless-on.html

• Question 627:

  Which of the following should a technician check FIRST before upgrading the RAM in a laptop?

  A. The speed of the FSB

  B. The motherboard specifications

  C. The BIOS manufacturer

  D. The operating system version

  Correct Answer: B

  Reference. http://www.dummies.com/how-to/content/how-to-install-ram-in-your- laptop.html

• Question 628:

  When installing additional RAM for a laptop, which of the following would MOST likely be used?

  A. PC card

  B. SODIMM

  C. DIMM

  D. PCMCIA

  Correct Answer: B

  Reference. http://www.crucial.com/install/sodimm.aspx

• Question 629:

  Which of the following types of memory is used with laptops?

  A. RAMBUS

  B. SODIMM

  C. ECC

  D. SDRAM

  Correct Answer: B

  Reference. http://www.webopedia.com/TERM/S/SO_DIMM.html

• Question 630:

  Which of the following is the FIRST option a technician should consider when deciding to purchase a docking station or port replicator?

  A. Difficulty or ease of use for the end user

  B. OS compatibility

  C. Whether there are enough ports

  D. Compatibility of the device it connects to

  Correct Answer: D