Computer Networking
Establishing a virtual connection is functionally equivalent to

Connecting as virtual memory
Placing a modem prior to a conversation
Placing a telephone call prior to a conversation
None of these
Physically connecting a DTE and DCE

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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?

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

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