Computer Networking
The application layer of a network

All of these
defines the user's port into the network
consists of software being run on the computer connected to the network
None of these
establishes, maintains, and terminates virtual circuits

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

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