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.

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

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Computer Networking
What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

Drops the frame
Sends back a message to the originating station asking for a name resolution
Forwards the switch to the first available link
Floods the network with the frame looking for the device

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