Computer Networking
Communication network is

a continuous frequency capable of being modulated or impressed with a second signal
None of these
a collection of interconnected functional units that provides a data communications service among stations attached to the network
one or more conductors that serve as a common connection for a related group of devices
the condition with two or more stations attempt to use the same channel at the same time

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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 mail
Global network
None of these
Paperless office
Electronic newspaper

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