Computer Networking
How many digits of the DNIC (Data Network Identification Code) identify the country?

None of these
first five
first three
first six
first four

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

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Computer Networking
The difference between a multiplexer and a statistical multiplexer is

Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)
Statistical multiplexers need buffers while multiplexers do not need buffers
Multiplexers often waste the output link capacity while statistical multiplexers optimize its use
None of these
Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol

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Computer Networking
In geosynchronous orbit, satellite

remains in a fixed position so that as earth rotates, it can fully cover the earth
moves faster than the earth's rotation so that it can cover larger portion of earth.
remains in a fixed position related to points on earth
moves simultaneously
None of these

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