Computer Networking
HDLC (High-level Data Link Control) is

None of these
a method of determining which device has access to the transmission medium at any time
a very common bit-oriented data link protocol issued by ISO.
network access standard for connecting stations to a circuit-switched network
a method access control technique for multiple-access transmission media

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Computer Networking
You copy a configuration from a network host to a router's RAM. The configuration looks correct, yet it is not working at all. What could the problem be?

You copied the wrong configuration into RAM.
The copy did not override the shutdown command in running-config.
The IOS became corrupted after the copy command was initiated.
You copied the configuration into flash memory instead.

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