Asynchronous Programming Practical Questions
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1. Create an asynchronous method that fetches data from a web API using HttpClient.
Max Time: 10 minutes
Explanation: This demonstrates how to use async and await for making non-blocking web requests.
2. Write an asynchronous method that reads a file and prints its contents without blocking the main thread.
Max Time: 10 minutes
Explanation: Demonstrates async file I/O operations.
3. Implement an async method that simulates a long-running task using Task.Delay().
Max Time: 8 minutes
Explanation: Shows how Task.Delay() is used to mimic asynchronous operations.
4. Implement a method that runs two async tasks in parallel and waits for both to complete.
Max Time: 10 minutes
Explanation: Demonstrates Task.WhenAll() for concurrent execution.
5. Demonstrate exception handling in an async method using try-catch.
Max Time: 8 minutes
Explanation: Shows how exceptions can be handled in asynchronous operations.
6. Use Task.Run to run a CPU-bound task asynchronously.
Max Time: 8 minutes
Explanation: Demonstrates how to offload CPU-bound work to background threads.
7. Implement an async method that processes multiple tasks using Task.WhenAny().
Max Time: 10 minutes
Explanation: Shows how to handle the first completed task in a group.
8. Implement an async method that uses ConfigureAwait(false) to avoid deadlocks in UI applications.
Max Time: 10 minutes
Explanation: Demonstrates how ConfigureAwait(false) helps prevent deadlocks when using async in UI applications.
9. Demonstrate how to use SemaphoreSlim to limit concurrent async operations.
Max Time: 10 minutes
Explanation: Shows how SemaphoreSlim can be used to limit the number of concurrent tasks.
10. Write an async method that returns a value using Task<T> and demonstrate its usage.
Max Time: 8 minutes
Explanation: Shows how to use Task<T> to return values from asynchronous methods.