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 mail
Electronic newspaper
None of these
Global network
Paperless office

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Computer Networking
What is split horizon?

It splits the traffic when you have a large bus (horizon) physical network.
It prevents regular update messages from reinstating a route that has gone down.
It holds the regular updates from broadcasting to a downed link.
Information about a route should not be sent back in the direction from which the original update came.

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