Computer Networking
Error detection at a data link level is achieved by

None of these
equalization
Hamming codes
bit stuffing
cyclic redundancy codes

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Computer Networking
MAC is

network access standard for connecting stations to a circuit-switched network
a method access control technique or multiple-access transmission media
a very common bit-oriented data link protocol issued to ISO.
a method of determining which device has access to the transmission medium at any time
None of these

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