Computer Networking
When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system?

Log-on procedure
Safeguard procedure
Identification procedure
None of these
Security procedure

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Computer Networking
Demodulation is the process of

converting analog signals to digital signals
dividing the high-speed signals into frequency bands
None of these
combining many low speed channels into one high speed channel
converting digital signals to analog signals

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