Computer Networking
Which of the following statements is correct for the use of packet switching?

the employment of additional intelligence within the network enabled more sophisticated error control and link control procedures to be applied
the subdivision of information into individually addressed packets in conjunction with alternative routing arrangement enabled the transmission path to be altered in the event of congestion or individ
All of these
None of these
by employing wide bandwidth circuits for the trunk networks substantial economies through extensive sharing of capacity could be achieved.

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Computer Networking
CSMA (Carrier Sense Multiple Access) is

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

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