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

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

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Computer Networking
The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?

The logical domain address for the workstation
An alias for the computer name
A logical address that identifies the workstation
A physical address that is assigned by the manufacturer
A physical address that is randomly assigned each time the computer is started

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