CompTIA CompTIA A+ 220-801 Questions & Answers

• Question 841:

  Which of the following memory types comes in the SIMM variety?

  A. SDRAM

  B. DDR3

  C. DDR2

  D. RDRAM

  Correct Answer: A

  Reference.

  http://www.proprofs.com/mwiki/index.php/Understanding_RAM_Types:_DRAM_S DRAM_DIMM_SIMM_And_More

• Question 842:

  Thermal paste is used between the CPU and heatsink to:

  A. make the heatsink easier to remove when replacing the CPU.

  B. aid in the transfer of energy from the CPU to the heatsink.

  C. act as a fire retardant should the CPU overheat.

  D. keep the heatsink in place on the CPU.

  Correct Answer: B

  Reference. http://whatis.techtarget.com/definition/thermal-grease-thermal-paste-or- thermal-compound

• Question 843:

  Which of the following should be recommended for cooling a high-end gaming PC? (Select TWO).

  A. Power saving NIC

  B. Passive cooling

  C. Additional case fans

  D. Liquid cooling system

  E. Lower wattage power supply

  Correct Answer: CD

  Reference. http://www.widowpc.com/2005/06/cooling_a_gamin.php

• Question 844:

  When configuring a new hard drive for use in a hot swappable environment, which of the following connection types should be used?

  A. PATA

  B. eSATA

  C. IDE

  D. SATA

  Correct Answer: B

  eSATA, the e is for external - meaning that the cabling used is meant for being outside of the computer chassis.

  Many external hard drive-casing kits will feature USB 2.0 connections along with eSATA connection.

  The hot-swappable feature is only available if the motherboard supports the eSata hot- swapable functionality. Current motherboards do as do newer models. However, drives with older SATA connections will not support plug and play,

  instead you'll need to shutdown the PC and swap the drive and power the PC back up. Another option if you'd still like to have the eSata functionality is to purchase a eSata controller card.

• Question 845:

  A technician has just installed two memory modules on a motherboard that supports DDR3 RAM with the bus speed up to 1600 MHz. The specifications of memory are DDR3 1066 MHz for one module and DDR3 1333 MHz for another. On which of the following bus speeds will the system function?

  A. 800 MHz

  B. 1000 MHz

  C. 1066 MHz

  D. 1600 MHz

  Correct Answer: C

  Reference. http://en.wikipedia.org/wiki/DDR3_SDRAM

• Question 846:

  A technician needs to install an appropriate PSU into a new machine. The technician needs available power for a floppy drive, two older IDE hard disks, a single SATA hard disk, and an IDE optical drive. How many unique power connectors will the PSU need to accommodate the listed devices?

  A. 2

  B. 3

  C. 4

  D. 5

  Correct Answer: B

  Three power connectors are enough to power a floppy drive, old IDE hard disk a single SATA disk and an optical drive. This is possible because a single connector has multiple connectors that can be plugged into these devices.

• Question 847:

  Which of the following resolution modes, by design, provides the BEST possible visual quality on a flat screen LCD monitor?

  A. SVGA

  B. Digital

  C. XGA

  D. Native

  Correct Answer: D

  Reference. http://reviews.cnet.com/4520-6029_7-6278129-1.html

• Question 848:

  In addition to power and DVI, which of the following additional connections is needed to setup a fully functional touch screen LCD monitor?

  A. USB

  B. SCSI

  C. Ethernet

  D. Parallel

  Correct Answer: A

  A USB is needed to set up a touch screen LCD monitor.

• Question 849:

  A consultant has been asked to install the brightest possible projector into an office conference room that has a lot of natural sunlight. Which of the following specifications would BEST meet the client's needs?

  A. Highest possible resolution

  B. High lumens

  C. High contrast

  D. HDMI 1.4 compatibility

  Correct Answer: B

  Reference. http://www.projectorpoint.co.uk/Projector-Brightness-Advice.htm

• Question 850:

  A technician is looking to install a 3.5 inch desktop hard drive into an external enclosure. Which of the following input interfaces would provide the MOST throughput for the drive?

  A. USB 2.0

  B. IEEE 1394

  C. Bi-Directional Parallel

  D. eSATA

  Correct Answer: D

  Reference. http://www.seagate.com/support/external-hard-drives/desktop-hard- drives/esata/