Computer Networking
Modulation is the process of

converting digital signals to analog signals
Multiplexing various signals into high speed line signals
converting analog signals to digital signals
performing data encryption.

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Computer Networking
Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?

Electronic newspaper
None of these
Electronic mail
Global network
Paperless office

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