Computer Networking
What does the command o/r 0x2142 provide?

It is used to view the lost password.
It is used to restart the router.
It is used to bypass the configuration in NVRAM.
It is used to enter ROM Monitor mode.

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

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.
None of these
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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