Computer Networking
Business meeting and conferences can be held by linking distantly located people through a computer network. Not only the participants exchange information but are able to see each other. What is it called?

Telemeeting
Telemailing
Teleconferencing
None of these
Teletalking

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Computer Networking
Demodulation is a process of

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

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