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?

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

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Computer Networking
Bandlimited signal is

transmission of signals without modulation
simultaneous transmission of data to a number of stations
All of these
a signal all of whose energy is contained within a finite frequency range
None of these

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