Computer Networking
If you want to have more than one Telnet session open at the same time, what keystroke combination would you use?

Ctrl+Shift+X, then 6
Ctrl+Shift+6, then X
Ctrl+X, then 6
Tab+Spacebar

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Computer Networking
Demodulation is a process of

converting digital to analog signals
performing data description.
converting analog to digital signals
multiplexing various signals into one high speed line signals

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Computer Networking
The network layer, in reference to the OSI model, provide

None of these
data link procedures that provide for the exchange of data via frames that can be sent and received
the interface between the X.25 network and packet mode device
All of these
the virtual circuit interface to packet-switched service

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