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?

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

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Computer Networking
Which of the following summation operations is performed on the bits to check an error-detecting code?

Attenuation
Coder-decoder
Codec
Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Checksum

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