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.
Acts as the fastest port to all servers.
Provides multiple collision domains on one switch port.

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Computer Networking
Which of the following technique is used for fragment?

a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
All of these
a technique used in best-effort delivery systems to avoid endlessly looping packets
None of these
one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size

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