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

bit stuffing
cyclic redundancy codes
None of these
Hamming codes
equalization

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Computer Networking
ARP (Address Resolution Protocol) is

a protocol used to monitor computers
a protocol that handles error and control messages
None of these
a TCP/IP high level protocol for transferring files from one machine to another
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address

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