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

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Computer Networking
Terminals are used to

All of these
collect data from the physical system
None of these
provide information for the manager
communicate management decisions to the physical system

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Computer Networking
Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?

Paperless office
Electronic mail
Electronic newspaper
None of these
Global network

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