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?

Paperless office
Global network
Electronic newspaper
Electronic mail
None of these

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Computer Networking
The fundamental requirements of private-to-public network interconnection methods which need to be provided in gateways is/are

to assign address to private network DTEs
universal accessibility for private network Data Terminal Equipment (DTE)
None of these
A and B both
adequate cost control mechanisms for administration of the private networks

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