220-801 Examination questions (September)

Achieve New Updated (September) CompTIA 220-801 Examination Questions 721-730

September 19, 2015

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QUESTION 721

Which of the following networking standards can operate at two different channel widths on the same spectrum simultaneously?

 

A.

802.11a

B.

802.11b

C.

802.11g

D.

802.11n

 

Correct Answer: D

Explanation:

http://compnetworking.about.com/od/wireless80211/g/bldef_80211n.htm

 

 

QUESTION 722

Which of the following describes the process laser printers use to secure toner to paper?

 

A.

Bonding

B.

Transferring

C.

Duplexing

D.

Fusing

 

Correct Answer: D

Explanation:

http://computer.howstuffworks.com/laser-printer3.htm

 

 

QUESTION 723

Which of the following will provide the FASTEST boot times for a laptop user?

 

A.

Solid state drive

B.

High capacity battery

C.

eSATA hard drive

D.

Increased RAM

 

Correct Answer: A

Explanation:

http://www.pcmag.com/article2/0,2817,2404258,00.asp

 

 

QUESTION 724

Which of the following media has a capacity of 8.6 GB?

 

A.

CD

B.

DL DVD

C.

DL Blu-ray

D.

DVD

 

Correct Answer: B

Explanation:

A version of DVD called DL DVD has more capacity than any other DVD variety. At 8.6 GB it can hold a lot more data than its predecessors. DL means dual layer. You can write to the either side of the disk. The normal DVD has only single layer to write to whereas DL DVD has both side up and down to write data. Therefore, the capacity is doubled.

 

 

QUESTION 725

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 726

The technician has identified prohibited content on a PC. Which of the following would be the FIRST action that the technician should take?

 

A.

Walk away

B.

Turn off the PC

C.

Report it

D.

Search for more

 

Correct Answer: C

Explanation:

Report the content to higher authorities in your organization. They will take care of it.

 

 

QUESTION 727

A customer would like to upgrade their onboard fast Ethernet connection to connect to their new gigabit network at the gigabit speed. Which of the following will enable them to do so?

 

A.

Convert the user to wireless.

B.

Install a 10/100/1000 NIC.

C.

Update the drivers for the onboard port.

D.

Flash the BIOS to unlock the Ethernet port.

 

Correct Answer: B

Explanation:

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

 

 

 

 

 

 

QUESTION 728

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 729

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 every time you boot the PC. Change the CMOS battery regularly to keep the BIOS on the motherboard performing optimally.

 

 

QUESTION 730

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 often. 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.

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