CompTIA CompTIA A+ 220-801 Questions & Answers

• Question 871:

  Which of the following is typically installed by connecting multiple DVI and USB cables to it?

  A. Touch screen

  B. LCD panel

  C. Webcam

  D. KVM

  Correct Answer: D

  Reference. http://www.ehow.com/how-does_4899546_kvm-switch-work.html

• Question 872:

  Which of the following features makes logical processor cores appear as physical cores to the operating system?

  A. XD-bit

  B. Hyperthreading

  C. MMU virtualization

  D. 64-bit architecture

  Correct Answer: B

  Reference. http://www.makeuseof.com/tag/hyperthreading-technology-explained/

• Question 873:

  Which of the following expansion slots can ONLY be found on a desktop computer?

  A. PCI express

  B. Express Card 34

  C. Express Card 54

  D. PCMCIA

  Correct Answer: A

  PCI Express slot is solely a desktop computer feature. The slot is on the motherboard that can be accessed easily. A laptop on the other hand has a compact casing so it is not possible to have a PCI express slot to insert a PCI card in it.

• Question 874:

  Which of the following features can be configured with keyboards to assist users with disabilities?

  A. Pointer trails

  B. Magnifier

  C. Sticky keys

  D. Character map

  Correct Answer: C

  Reference. http://windows.microsoft.com/is-is/windows-xp/help/using-stickykeys

• Question 875:

  A technician has installed a digital display. Which of the following is TRUE about the native resolution of a digital display?

  A. It has the slowest refresh rate.

  B. It causes the display to use pixel interpolation.

  C. It is the lowest resolution.

  D. It provides the best quality display.

  Correct Answer: D

  A digital display is obviously better than an analog one. Compared to an CRT monitor, the display of an LCD and LED is lot better crisp and clear.

• Question 876:

  After installing a new serial port card in a computer, the communication parameters need to be configured. Which of the following is the MOST common communication configuration for a serial port?

  A. Eight data bits, even parity, two stop bits

  B. Seven data bits, no parity, one stop bit

  C. Eight data bits, no parity, one stop bit

  D. Seven data bits, even parity, one stop bit

  Correct Answer: C

  Reference. http://www.modemhelp.net/faqs/8n1.shtml

• Question 877:

  A DVI-D cable is generally used for which of the following computer functions?

  A. Delivering audio only

  B. Delivering audio and video

  C. Delivering video only

  D. Delivering an analog signal

  Correct Answer: C

  Reference. http://www.datapro.net/catalog/dvi-d-cables.html

• Question 878:

  Which of the following video cable types would be MOST likely to experience gradual, degraded signal quality over a long distance?

  A. HDMI

  B. DisplayPort

  C. VGA

  D. DVI

  Correct Answer: C

  Reference. http://www.tomshardware.com/forum/196268-33-signal-loss-long- distance-quality-cable-needed

• Question 879:

  Which of the following storage media would be used to build a RAID 5 array?

  A. Dual layer DVDs

  B. SATA HDDs

  C. Flash drives

  D. Blu-ray discs

  Correct Answer: B

  Reference. http://serverfault.com/questions/192995/raid-5-with-big-sata-disks-do-or- dont

• Question 880:

  Primary system functions like basic boot priorities, voltage parameters for the processor, and SATA options are configured in which of the following areas of a PC system?

  A. MBR

  B. CMOS

  C. VRAM

  D. BIOS

  Correct Answer: D

  Reference. http://www.howstuffworks.com/bios.htm