Computer Networking
After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?

Word processor
None of these
Telex
Facsimile
Electronic mail

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Computer Networking
TCP is:

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

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