Computer Networking
Which of the following statements is correct for the use of packet switching?

the employment of additional intelligence within the network enabled more sophisticated error control and link control procedures to be applied
the subdivision of information into individually addressed packets in conjunction with alternative routing arrangement enabled the transmission path to be altered in the event of congestion or individ
by employing wide bandwidth circuits for the trunk networks substantial economies through extensive sharing of capacity could be achieved.
None of these
All of these

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Computer Networking
Demodulation is the process of

converting digital signals to analog signals
converting analog signals to digital signals
dividing the high-speed signals into frequency bands
None of these
combining many low speed channels into one high speed channel

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Computer Networking
You save the configuration on a router with the copy running-config startup-config command and reboot the router. The router, however, comes up with a blank configuration. What can the problem be?

The configuration register setting is incorrect.
You didn
The newly upgraded IOS is not compatible with the hardware of the router.
NVRAM is corrupted.

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