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 rate
Cyclic redundancy check
None of these
Error detecting code

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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."

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

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