Computer Networking
A 6-MHz channel is used by a digital signaling system utilizing 4-level signals. What is the maximum possible transmission rate?

None of these
12 Mbaud/sec
1.5 Mbaud/sec
6 Mband/sec
24 Mbaud/sec

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Computer Networking
Bus is

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
the condition when two or more stations attempt to use the same channel at the same time
None of these

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Computer Networking
MAC is

a method of determining which device has access to the transmission medium at any time
None of these
a method access control technique or multiple-access transmission media
a very common bit-oriented data link protocol issued to ISO.
network access standard for connecting stations to a circuit-switched network

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