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.

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

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Computer Networking
If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?

Flood the network with the frame
Discard it and send an error message back to the originating host
Add the source address and port to the MAC address table and forward the frame out the destination port
Add the destination to the MAC address table and then forward the frame

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