Computer Networking
What can cause a problem with communication with a client by name but not by IP address?

The IP address
The default gateway
Static files such as an LMHOSTS file or a DNS database
None of these
Subnet mask

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

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