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

Codec
None of these
Attenuation
Checksum
Coder-decoder

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

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Computer Networking
Synchronous protocols

None of these
transmit characters one at a time
are generally used by personal computers
allow faster transmission than asynchronous protocols do
are more reliable

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