[Free] New Updated (October) 220-801 CompTIA Real Exam 171-180

Ensurepass

 

QUESTION 171

Which of the following devices is MOST likely to outperform a 15,000 rpm SAS hard drive in read speed?

 

A.

Compact flash

B.

SSD

C.

Tape

D.

SD

 

Correct Answer: B

Explanation:

http://www.8088.net/blog/index.php/2011/01/24/iops-comparison-solid-state-drive-ssd-15000-7200-5900-5600-rpm/?lang=en

 

 

QUESTION 172

A technician needs to access the system BIOS at boot time on a PC. Which of the following are possible BIOS access keys? (Select TWO).

 

A.

F2

B.

F12

C.

F8

D.

Delete

E.

Function – F4

F.

Control – Home

 

Correct Answer: AD

Explanation:

Depending on the system, F2 or delete key can be used to access BIOS during the boot process on a PC. F2 is a common key and is used in majority of PCs with Windows installed.

 

 

QUESTION 173

A customer reports that their 4-year-old PC takes a long time to boot. The technician investigates and finds the BIOS is rediscovering the hardware environment at every boot. Which of the following will MOST likely fix this problem?

 

A.

Change out the CMOS battery on the motherboard.

B.

At the OS level, launch “Device Manager” and re-scan the hardware.

C.

Hit “F9” while the computer is booting, but before the OS starts to load.

D.

Reset the BIOS using the CMOS reset jumper.

 

Correct Answer: A

Explanation:

When CMOS battery loses its juice, the BIOS will act strangely everytime you boot the PC. Change the CMOS battery regularly to keep the BIOS on the motherboard performing optimally.

 

 

QUESTION 174

A technician installs a biometric device using the manufacturer supplied driver. After confirming the device functions properly, the technician performs Windows and antivirus updates. Which of the following would BEST explain why the biometric device no longer functions?

 

A.

The recently updated antivirus scanning software is interfering with the proper operations of the biometric device.

B.

A virus that specifically targets retinal scanning software infected the PC because the user was late applying new definitions.

C.

The recently installed Windows updates overwrote the manufacturer’s supplied biometric device driver.

D.

The biometric device needs to be recalibrated due to environmental conditions involved with the installation.

 

Correct Answer: C

Explanation:

Microsoft updates Windows oftenly. The update contains drivers as well. The possible reason of the problem is that Windows update manufacturer’s device driver during the update process. Check the driver to confirm the issue. You can always install the original driver for the biometric device if this problem occurs.

 

 

QUESTION 175

Which of the following describes the MAIN difference between a plenum rated cable versus a non- plenum rated cable?

 

A.

A reduced production of hazardous fumes when subjected to fire

B.

The ability to be bent into tighter turning radiuses within conduit

C.

A reduced noise level when bundled in groups of 20 or more

D.

The ability to transmit data with fewer cross-talk interruptions

 

Correct Answer: A

Explanation:

Plenum cable is sheathed with fire retarded substance. Therefore, the production of hazardous fumes will be lower in plenum cable than in other cables not coated with fire retardant material.

 

 

QUESTION 176

Which of the following video types has a DB-15 connector?

 

A.

S-video

B.

DVI-A

C.

DVI-D

D.

VGA

 

Correct Answer: D

Explanation:

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

QUESTION 177

Which of the following connectors would terminate a POTS connection?

 

A.

BNC

B.

F

C.

RJ-45

D.

RJ-11

 

Correct Answer: D

Explanation:

http://www.danlipofsky.com/technical/ethernet/

 

 

QUESTION 178

Which of the following features of a CPU socket is designed to make installation of a CPU easier?

 

A.

Plug and Play

B.

Lower latency

C.

Zero insertion force

D.

Heatsinks

 

Correct Answer: C

Explanation:

http://www.techterms.com/definition/zif

 

 

QUESTION 179

Which of the following connection types is MOST likely to be used to connect an internal hard drive to a computer?

 

A.

IDE

B.

DVI

C.

Parallel

D.

eSATA

 

Correct Answer: A

Explanation:

http://searchstorage.techtarget.com/definition/IDE

 

 

QUESTION 180

Which of the following voltages is MOST likely to be supplied from a PC power supply unit? (Select TWO).

 

A.

1V

B.

1.7V

C.

3.3V

D.

5V

E.

9V

 

Correct Answer: CD

Explanation:

3.3 volts and 5V are the common voltage range that a PC power supply unit uses to power computer components.

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