Async/Await Done Right

1. What is the primary purpose of using `async`/`await` in web servers?

To make requests faster To release the thread during wait To improve database performance To handle more requests simultaneously

2. What does the cardinal rule 'async all the way down' imply?

Only the controller needs to be async Only the data layer needs to be async All layers of the application must implement async Async methods may mix with synchronous ones

3. Why should `async void` be avoided outside of event handlers?

It's faster than `async Task` It leads to unhandled exceptions It does not support cancellation It is required by MVC

4. What is the benefit of using a `CancellationToken` in async methods?

It speeds up execution It prevents thread blocking It allows cancellation of unnecessary work It improves error handling

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