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RunLoop vs DispatchQueue: iOS Interview Question

RunLoop vs DispatchQueue interview question with a clear example answer for iOS engineers. Practice with AceMobileInterview.

This is a common iOS interview topic: RunLoop vs DispatchQueue.

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

  1. 1.How does the main RunLoop relate to GCD main queue?

    Main RunLoop processes input sources/timers; DispatchQueue.main schedules blocks that eventually run on the main thread. Timers/DisplayLink interact with RunLoop modes; scroll tracking uses tracking mode.

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