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

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Computer Networking
The packets switching concept was first proposed

All of these
None of these
in the late 1980s for the Defense Ministry of US.
in the early 1960s for military communication systems, mainly to handle speech
in the late 1950s for Defense Ministry of US

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Computer Networking
Which of the following characteristic(s) is/are suited to the PSS applications?

All of these
widely dispersed terminals and access to international packets switched services
None of these
bursty traffic and low communications intensity
Multiple remote host or applications accessed by a single local access circuit terminal and circuit

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