Computer Networking
The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver

can send or receive data one at a time
None of these
can receive and send data simultaneously
cannot talk at once
can do one way data transmission only

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Computer Networking
MAC is

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

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Computer Networking
The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

RAM should be erased and the router restarted.
The new configuration should be entered and saved.
Flash should be erased and the router restarted.
NVRAM should be erased and the router restarted.

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