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

equalization
Hamming codes
None of these
cyclic redundancy codes
bit stuffing

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Computer Networking
ARP (Address Resolution Protocol) is

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

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