IGCSE Computer Science 0478: ARQ and choosing an error detection method

Students learn how automatic repeat query uses acknowledgements and timeouts to get data delivered correctly, then compare all the methods and choose one for a scenario.

One content description from the full IGCSE Computer Science 0478 — 2.2 Methods of Error Detection journey. All 8 modules below are in that journey too, with the same content — add just these to a class, or the whole strand.

Modules (8)

1 Automatic repeat query (ARQ) 2 Positive acknowledgement 3 Negative acknowledgement 4 Timeout 5 The ARQ process step by step 6 What ARQ can and cannot do 7 Comparing the error detection methods 8 Choosing an error detection method for a scenario

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