Module 32: Background Tasks

Check your understanding

A quick multiple-choice check before you move on. Answer every question, then submit to see how you did.

1.You write let mut interval = tokio::time::interval(Duration::from_secs(5)); loop { interval.tick().await; work(); }. When does work() first run?

2.A C# developer expects that dropping the JoinHandle returned by tokio::spawn will stop the background task. What actually happens in Rust?

3.In the theory's mpsc work-queue pattern, what does the background consumer do when the channel is currently empty but the sender is still alive?

4.How does tokio's default interval first-tick behavior contrast with C#'s PeriodicTimer.WaitForNextTickAsync()?

5.If a periodic task's work() sometimes takes longer than the interval period, what is tokio's default behavior for the tick that was missed?

Answer every question to submit.