Threads Questions

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31.

When is the Many to One model at an advantage?

A

When the program does not need multithreading

B

When the program has to be multi-threaded

C

When there is a single processor

D

None of the mentioned

Correct Answer: A

None.

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32.

In the Many to Many model true concurrency cannot be gained because ___________

A

the kernel can schedule only one thread at a time

B

there are too many threads to handle

C

it is hard to map threads with each other

D

none of the mentioned

Correct Answer: A

None.

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33.

In the Many to Many models when a thread performs a blocking system call ___________

A

other threads are strictly prohibited from running

B

other threads are allowed to run

C

other threads only from other processes are allowed to run

D

none of the mentioned

Correct Answer: B

None.

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34.

What is Thread cancellation?

A

the task of destroying the thread once its work is done

B

the task of removing a thread once its work is done

C

the task of terminating a thread before it has completed

D

none of the mentioned

Correct Answer: C

None.

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35.

When a web page is loading, and the user presses a button on the browser to stop loading the page?

A

the thread loading the page continues with the loading

B

the thread loading the page does not stop but continues with another task

C

the thread loading the page is paused

D

the thread loading the page is cancelled

Correct Answer: D

None.

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36.

When one thread immediately terminates the target thread, it is called ____________

A

Asynchronous cancellation

B

Systematic cancellation

C

Sudden Termination

D

Deferred cancellation

Correct Answer: A

None.

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37.

When the target thread periodically checks if it should terminate and terminates itself in an orderly manner, it is called?

A

Asynchronous cancellation

B

Systematic cancellation

C

Sudden Termination

D

Deferred cancellation

Correct Answer: D

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38.

Cancelling a thread asynchronously ____________

A

frees all the resources properly

B

may not free each resource

C

spoils the process execution

D

none of the mentioned

Correct Answer: B

None.

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39.

If multiple threads are concurrently searching through a database and one thread returns the result then the remaining threads must be ____________

A

continued

B

cancelled

C

protected

D

none of the mentioned

Correct Answer: B

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40.

Thread pools are useful when ____________

A

when we need to limit the number of threads running in the application at the same time

B

when we need to limit the number of threads running in the application as a whole

C

when we need to arrange the ordering of threads

D

none of the mentioned

Correct Answer: A

None.

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