Computer Networking
What is the name given to the exchange of control signals which is necessary for establishing a connection between a modem and a computer at one end of a line and another modem and computer at the other end?

Protocol
None of these
Duplexing
Modem options
Handshaking

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

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
by employing wide bandwidth circuits for the trunk networks substantial economies through extensive sharing of capacity could be achieved.
All of these
the employment of additional intelligence within the network enabled more sophisticated error control and link control procedures to be applied
None of these

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