Computer Networking
MAC is

None of these
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
network access standard for connecting stations to a circuit-switched network
a method access control technique or multiple-access transmission media

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Computer Networking
ICMP (Internet Control Message 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 used to monitor computers
a TCP/IP high level protocol for transferring files from one machine to another
a protocol that handles error and control messages

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