Computer Networking
Which of the following communications lines is best suited to interactive processing applications?

mixed band channels
None of these
simplex lines
full-duplex lines
narrowband channels

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Computer Networking
ICMP (Internet Control Message Protocol) is

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

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Computer Networking
What does a VLAN do?

Breaks up broadcast domains in a layer 2 switch internetwork.
Provides multiple broadcast domains within a single collision domain.
Provides multiple collision domains on one switch port.
Acts as the fastest port to all servers.

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