[Free] New Updated (October) 220-801 CompTIA Real Exam 141-150

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QUESTION 141

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

Explanation:

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 142

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

Explanation:

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

 

 

QUESTION 143

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

Explanation:

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 144

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

Explanation:

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

 

 

QUESTION 145

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

Explanation:

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

 

 

QUESTION 146

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

 

A.

SDRAM

B.

DDR3

C.

DDR2

D.

RDRAM

 

Correct Answer: A

Explanation:

http://www.proprofs.com/mwiki/index.php/Understanding_RAM_Types:_DRAM_SDRAM_DIMM_S IMM_And_More

 

 

QUESTION 147

Which of the following would benefit MOST from the use of dual monitors?

 

A.

Gaming PC

B.

Home theater PC

C.

A/V editing station

D.

Thin client

 

Correct Answer: C

Explanation:

http://www.overclock.net/t/1129146/dual-monitors-for-photo-editing

 

 

QUESTION 148

Which of the following cable types carries an analog video signal across three separate physical channels?

 

A.

Component

B.

RCA

C.

DVI-analog

D.

VGA

 

Correct Answer: A

Explanation:

Video connections use many of the same connectors as analog and digital audio. Pro video applications generally use XLR or BNC cables, whereas consumer video equipment often uses RCA phono plugs. Phono plug connections can be either composite or component video. Composite video carries the video signal on one cable, whereas component video provides the complete signal on three separate cables, one for each of three color channels. Specialized video connectors include S-Video (also called Y/C) connections, which are transmitted on 4-pin mini-DIN connectors to provide greater color depth than composite video. There are also unique connectors for new high-definition digital video formats like HDI and DVI.

 

 

QUESTION 149

Before installing a new expansion card, which of the following should a technician consider? (Select TWO).

 

A.

CPU type

B.

Free hard drive space

C.

Power supply wattage

D.

Amount of RAM

E.

Bus type

 

Correct Answer: CE

First you need to check if the power supply has enough wattage to power the new expansion card. Then check the bus type to see if it can support the new expansion card.

 

 

QUESTION 150

A user wants to purchase a new computer to use word processing software only. Which of the following computer types should be recommended?

 

A.

Thin client

B.

CAD workstation

C.

Home server

D.

Gaming PC

 

Correct Answer: A

Explanation:

http://www.thinclient.net/pdf/Thin_Client_Benefits_Paper.pdf

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