Computer Networking
The network layer, in reference to the OSI model, provide

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

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Computer Networking
An encyclopedic database

All of these
is generally free
is easy for beginners to use
None of these
is an information utility that specializes in storing and searching information

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Computer Networking
The main difference between TCP and UDP is

None of these
UDP is a datagram where as TCP is a connection oriented service
UDP is connection oriented where as TCP is datagram service
All of these
TCP is an Internet protocol where as UDP is an ATM protocol

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Computer Networking
The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

The new configuration should be entered and saved.
Flash should be erased and the router restarted.
RAM should be erased and the router restarted.
NVRAM should be erased and the router restarted.

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