CompTIA Tech+ FC0-U71 TTT Session 2:

[precious]

What does the term processing speed refer to?
How fast a computer can download files
How fast a computer performs a given operation or task
How fast a computer can connect to the internet
How fast a computer can display images

Explanation​

The correct answer is How fast a computer performs a given operation or task.

Processing speed refers to the rate at which a computer's CPU can execute instructions and perform operations. This speed is typically measured in clock cycles per second (Hertz) and affects how quickly the computer can complete tasks, run programs, and process data.

 

[precious]

What is the fourth step in the troubleshooting process?
Establish a plan and implement the fix
Test the solution
Identify the problem
Document the findings

Explanation​

The correct answer is Establish a plan and implement the fix.

In the troubleshooting process, the steps generally follow this order:

1. Identify the problem
2. Establish a theory of probable cause
3. Test the theory to determine the cause
4. Establish a plan and implement the fix
5. Test the solution
6. Document the findings

So, the fourth step specifically involves creating a plan to resolve the identified issue and implementing that fix.

 

[precious]

How many bits does each hexadecimal digit represent in a network address?
answer
2
8
16
4

Explanation​

The correct answer is 4.
Each hexadecimal digit represents 4 bits in a network address. Since hexadecimal is base 16, each digit can represent values from 0 to 15, which corresponds to 4 bits (2^4 = 16).

 

[precious]

What should you do if you can replicate the problem?

Restart the computer
Move on to figuring out how to fix it
Uninstall and reinstall the application
Find a workaround for the problem

The correct answer is Move on to figuring out how to fix it.
If you can replicate the problem, it indicates that you've identified a consistent issue. At this point, you should focus on diagnosing and resolving the problem rather than taking preliminary steps like restarting the computer or uninstalling applications, which may not address the underlying cause.

 

[precious]

What can cause a network's throughput to slow down?
Fast network cables
Retransmissions due to errors
High bandwidth
Low latency

Explanation​

The correct answer is Retransmissions due to errors.

Retransmissions occur when data packets are lost or corrupted during transmission, causing delays as the network must resend those packets. This can significantly slow down a network's throughput, as it reduces the effective data transfer rate. Fast network cables, high bandwidth, and low latency, on the other hand, generally contribute to better network performance.

 

[precious]

What is an example of a throughput unit for a very high-speed network?
Mbps
Tbps
Kbps
Gbps

Explanation​

The correct answer is Tbps (terabits per second).

For very high-speed networks, throughput is often measured in terabits per second (Tbps), as it represents a much larger capacity than megabits per second (Mbps), gigabits per second (Gbps), or kilobits per second (Kbps). Tbps is used for measuring the speed of high-capacity networks, such as those used in data centers or backbone infrastructures.