Topic

Error Detection

2 questions in this topic.

2013 Q4(b)Link LayerError Detection· 4 marks

“All links are error-prone and no link with errors can be made error-free.” Carefully explain whether it is true or false based on what you have learned regarding the link layer, the physical layer and strategies employed for error correction.

EDCFECreliability

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2014 Q4(e)Link LayerError Detection· 2 marks

Why do we carry out error detection and/or correction at Layer 2, given that it is carried out at Layers 3 and 4 as well?

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