Computer Networking
Which network is a cross between circuits switched network and a data-gram network?

None of these
Virtual-circuit identifier
Virtual-circuit network
Circuit-switched network

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Computer Networking
CSMA (Carrier Sense Multiple Access) is

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

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