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?

None of these
Electronic newspaper
Paperless office
Electronic mail
Global network

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Computer Networking
A T-switch is used to

None of these
transmit characters one at a time
echo every character that is received
rearrange the connections between computing equipment
control how messages are passed between computers

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