Computer Networking
TCP is:

Operates at the Data Link layer
None of these
Connectionless and unreliable
Connection orientated and reliable
Connection orientated and unreliable

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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
Global network
Paperless office
None of these

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