Computer Networking
What command is used to create a backup configuration?

copy running-config startup-config
config mem
copy running backup
wr mem

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Computer Networking
Error detecting code is

a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
a check bit appended to an array of binary digits to make the sum of all the binary digits.
an error-detecting code based on a summation operation performed on the bits to be checked
the ratio of the data units in error to the total number of data units
None of these

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Computer Networking
You type show running-config and get this output:[output cut]Line console 0 Exec-timeout 1 35 Password BIXPASSWD Login[output cut]What do the two numbers following the exec-timeout command mean?

If no commands have been typed in 1 minute and 35 seconds, the console connection will be closed.
If you're connected to the router by a Telnet connection, input must be detected within 1 minute and 35 seconds or the connection will be closed.
If no router activity has been detected in 1 hour and 35 minutes, the console will be locked out.
If no command has been typed in 35 seconds, the console connection will be closed.

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