Computer Networking
Which of the following describe the process identifier that is used to run OSPF on a router?1. It is locally significant.2. It is globally significant.3. It is needed to identify a unique instance of an OSPF database.4. It is an optional parameter required only if multiple OSPF processes are running on the router.

IS-IS
1, 2 and 4
3 and 5
1 and 3
All of these

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

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