CompTIA A+ (Desktop) mcq questions with answer – Set 19

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• Total Number Of Questions : 10
• Passing Marks : 7
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#1. You have been asked to test a power supply that is installed in a computer. You have grabbed your multimeter to perform the tests. What is not typically measured by a multimeter?

Current

Current

Capacity

Capacity

Voltage

Voltage

Continuity

Continuity

#2. What is the purpose of a network card loopback plug?

To return signals from your network card back to your computer to verify accuracy and pin configuration of network cable

To return signals from your network card back to your computer to verify accuracy and pin configuration of network cable

To allow use of 127.0.0.1 TCP/IP address range

To allow use of 127.0.0.1 TCP/IP address range

To eliminate network error messages from the operating system

To eliminate network error messages from the operating system

To capture network traffic for future analysis

To capture network traffic for future analysis

#3. You have been examining a system and have been inspecting the power supply. Which issue doesn’t indicate a possibly failing power supply?

CPU thermal speed reduction

CPU thermal speed reduction

Power-up failure

Power-up failure

System halt

System halt

Internal devices receiving 12V and 5V

Internal devices receiving 12V and 5V

#4. While reviewing a co-worker’s tool kit, you notice that she has included a magnet on an extension rod. Why would you use an extension magnet?

To erase magnetic media in a drive

To erase magnetic media in a drive

To suspend floppy drives inside metal cases

To suspend floppy drives inside metal cases

To pick up dropped metal objects

To pick up dropped metal objects

To remove Molex filings from inside of the connector

To remove Molex filings from inside of the connector

#5. You are examining a system on your bench to ensure that all components are functional. What components can be tested by BIOS self-tests? (Choose Two)

Select all that apply:

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Hard drives

Hard drives

CPU temperature deviations

CPU temperature deviations

Magnetic media

Magnetic media

Memory

Memory

#6. How does the system BIOS report major startup errors or configuration issues?

Screen flashes

Screen flashes

Beep errors

Beep errors

Error message dialog boxes

Error message dialog boxes

Audio interruptions

Audio interruptions

#7. You are looking into why a system has started to perform much slower than normal. This issue happened suddenly. What can be the cause of reduced CPU performance?

Overuse of CPU cycles

Overuse of CPU cycles

Addition of RAM

Addition of RAM

Heat sink fan failure attributable to power supply failure

Heat sink fan failure attributable to power supply failure

Removal of the J7 motherboard jumper as defined by the ATX 1.2 standard

Removal of the J7 motherboard jumper as defined by the ATX 1.2 standard

#8. What is the purpose of a security bit?

To reduce the chance of users opening system cases

To reduce the chance of users opening system cases

To secure TCP/IP data packets

To secure TCP/IP data packets

Eight of them create a security byte

Eight of them create a security byte

To allow for tracking of sensitive data

To allow for tracking of sensitive data

#9. You are working in a factory servicing a computer. The computer is very dirty with oil and grease marks that need to be cleaned. Which of the following is not an acceptable cleaner for computer components?

Alcohol and cotton swabs

Alcohol and cotton swabs

Dry, lint-free cloth

Dry, lint-free cloth

Ammonia-based cleaner

Ammonia-based cleaner

Cloth moistened with water

Cloth moistened with water

#10. You are concerned about a computer that is reporting higher than expected temperatures. You would like to improve the internal airflow to reduce the temperature. Which of the following does not help improve computer airflow?

Adding exhaust fans

Adding exhaust fans

Leaving spaces between devices

Leaving spaces between devices

Keeping vents clear of debris and dust

Keeping vents clear of debris and dust

Using ribbon cables where possible

Using ribbon cables where possible

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