Exam 70-483 topic 2 question 7 discussion

Actual exam question from Microsoft's 70-483

Question #: 7
Topic #: 2

You are implementing a method named ProcessReports that performs a long-running task. The ProcessReports() method has the following method signature: public void ProcessReports(List<decimal> values,CancellationTokenSource cts, CancellationToken ct)
If the calling code requests cancellation, the method must perform the following actions:
✑ Cancel the long-running task.
Set the task status to TaskStatus.Canceled.

You need to ensure that the ProcessReports() method performs the required actions.
Which code segment should you use in the method body?

A. if (ct.IsCancellationRequested)return;
B. ct.ThrowIfCancellationRequested() ;
C. cts.Cancel();
D. throw new AggregateException();

Show Suggested Answer

Suggested Answer: B 🗳️

by nelaed at June 11, 2020, 9:53 a.m.

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BurgSharp

Highly Voted 5 years ago

B it is: "By throwing a OperationCanceledException and passing it the token on which cancellation was requested. The preferred way to do this is to use the ThrowIfCancellationRequested method. A task that is canceled in this way transitions to the Canceled state, " link: https://docs.microsoft.com/en-us/dotnet/standard/parallel-programming/task-cancellation

upvoted 6 times

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mohmou

Highly Voted 4 years, 11 months ago

B https://www.briefmenow.org/microsoft/which-code-segment-should-you-use-in-the-method-body-5/

upvoted 5 times

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DaGrooveNL

Most Recent 4 years, 5 months ago

FINAL ANSWER: B.

upvoted 1 times

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Jannie

5 years ago

I'dd say A based on this : https://www.c-sharpcorner.com/UploadFile/80ae1e/canceling-a-running-task/

upvoted 2 times

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nelaed

5 years ago

C is the right answer. https://docs.microsoft.com/pl-pl/dotnet/api/system.threading.cancellationtoken.throwifcancellationrequested?view=netcore-3.1 Body of ThrowIfCancellationRequested(): if (token.IsCancellationRequested) throw new OperationCanceledException(token); Method Cancel from CancellationTokenSource sets flag for canceling work.

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