Computer Networking
Switching at the network layer in the Internet uses the datagram approach to:

IP switching
Message switching
Circuit switching
Packet switching

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Computer Networking
If routers in a single area are configured with the same priority value, what value does a router use for the OSPF Router ID in the absence of a loopback interface?

The lowest IP address of any physical interface
The lowest IP address of any logical interface
The highest IP address of any logical interface
The highest IP address of any physical interface

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