Computer Networking
A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent?

None of these
8 Kbps
64 Kbps
128 Kbps.
32 Kbps

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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?

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

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