Computer Networking
Which of the following types of channels moves data relatively slowly?

wideband channel
narrowband channel
voiceband channel
None of these
broadband channel

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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
Electronic mail
Paperless office
Global network
None of these

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