Computer Networking
An international standard, multilevel set of protocols to promote compatibility among telecommunications networks. Select the best fit for answer:

None of these
Virtual Private Network
Network operating system
OSI
Network Server

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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 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
a collection of interconnected functional units that provides a data communications service among stations attached to the network

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Computer Networking
Which of the following refers to the terms "residual error rate"?

The probability that one or more errors will be undetected when an error detection scheme is used
the number of bit errors per twenty four hours of continuous operation on an asynchronous line
signal to noise ratio divided by the ratio of energy per bit to noise per hertz
the probability that one or more errors will be detected when an error detection mechanism is used
None of these

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