Computer Networking
What does a VLAN do?

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

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Computer Networking
Error detecting code is

None of these
an error-detecting code based on a summation operation performed on the bits to be checked
a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
the ratio of the data units in error to the total number of data units
a check bit appended to an array of binary digits to make the sum of all the binary digits.

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Computer Networking
Bus is

None of these
the condition when two or more stations attempt to use the same channel at the same time
a collection of interconnected functional units that provides a data communications service among stations attached to the network
a continuous frequency capable of being modulated or impressed with a second signal
one or more conductors that some as a common connection for a related group of devices

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

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.
Stops an interface from sending or receiving periodic dynamic updates.

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