Computer Networking
An error detecting code is which code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as

Checksum
Error detecting code
Cyclic redundancy check
Error rate
None of these

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Computer Networking
What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."

The administrator is pinging from the interface.
No cable is attached.
The administrator has the interface shut down.
The keepalives are different times.

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

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

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