Computer Networking
In a PC to telephone hookup for long distance communication, modem is connected between the telephone line and

asynchronous port
crossover cable
None of these
PC
synchronous port

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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?

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

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