Interview guides / ios

OperationQueue: iOS Interview Question

OperationQueue interview question with a clear example answer for iOS engineers. Practice with AceMobileInterview.

This is a common iOS interview topic: OperationQueue.

Below is a concise answer you can adapt in a real interview, then go deeper in the full AceMobileInterview track.

1. 1.When is OperationQueue preferable to raw GCD?

   When you need dependencies, cancellation of work units, maxConcurrentOperationCount, or KVO progress. GCD is lighter for simple fire-and-forget; Operations model richer workflows.