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.

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

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Computer Networking
The physical layer, in reference to the OSI model, defines

the virtual circuit interface to packet-switched service
data link procedures that provide for the exchange of data via frames that can be sent and received
the interface between the X.25 network and packet mode device
None of these
All of these

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Computer Networking
Which of the following is true when describing an anycast address?

These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
This address identifies multiple interfaces and the anycast packet is only delivered to one address. This address can also be called one-to-one-of-many.
Packets addressed to a unicast address are delivered to a single interface.
Packets are delivered to all interfaces identified by the address. This is also called one-to-many addresses.

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