Computer Networking
"BAUD" rate means

None of these
The rate at which the signal changes.
The number of bytes transmitted per unit time.
The number of bits transmitted per unit time.

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Computer Networking
Carrier is

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

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Computer Networking
The network layer, in reference to the OSI model, provide

the virtual circuit interface to packet-switched service
data link procedures that provide for the exchange of data via frames that can be sent and received
the interface between the X.25 network and packet mode device
All of these
None of these

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Computer Networking
Error rate is

an error-detecting code based on a summation operation performed on the bits to be checked.
a code in which each expression conforms to specific 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 number of data units in error to the total number of data units
None of these
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
An encyclopedic database

is generally free
is easy for beginners to use
All of these
is an information utility that specializes in storing and searching information
None of these

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