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Question ID 17024

You use the Task.Run() method to launch a long-running data processing operation. The
data processing operation often fails in times of heavy network congestion.
If the data processing operation fails, a second operation must clean up any results of the
first operation.
You need to ensure that the second operation is invoked only if the data processing
operation throws an unhandled exception.
What should you do?

Option A

Create a TaskCompletionSource<T> object and call the TrySetException() method of the object.

Option B

Create a task by calling the Task.ContinueWith() method.

Option C

 Examine the Task.Status property immediately after the call to the Task.Run() method.

Option D

Create a task inside the existing Task.Run() method by using the AttachedToParent option.

Correct Answer B
Explanation


Question ID 17025

You are developing an application. The application calls a method that returns an array of
integers named employeeIds. You define an integer variable named employeeIdToRemove
and assign a value to it. You declare an array named filteredEmployeeIds.
You have the following requirements:
✑ Remove duplicate integers from the employeeIds array.
✑ Sort the array in order from the highest value to the lowest value.
✑ Remove the integer value stored in the employeeIdToRemove variable from the
employeeIds array.
You need to create a LINQ query to meet the requirements.
Which code segment should you use?

Option A

Option A

Option B

Option B

Option C

Option C

Option D

Option D

Correct Answer C
Explanation

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