Asynchronous Programming

Question 1

Why do we need to use asynchronous method?

Answer 1

To allow a unit of work to run separately from the primary application thread. When completed it notifies the main thread.

Question 2

What effect does the await keyword have?

Answer 2

It suspends the calling method and yields control back to its caller until the awaited task is complete.

Question 3

What return types are allowed for asynchronous methods?

Answer 3

Task and Task