Computer Networking
ICMP (Internet Control Message Protocol) is

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

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Computer Networking
MAC is

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

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Computer Networking
What does the passive command provide to dynamic routing protocols?

Stops an interface from sending or receiving periodic dynamic updates.
Stops the router from sending any dynamic updates.
Stops the router from receiving any dynamic updates.
Stops an interface from sending periodic dynamic updates but not from receiving updates.

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