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?

Facsimile
Electronic mail
None of these
Word processor
Telex

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Computer Networking
The Internet Control Message Protocol (ICMP)

provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
All of these
allows gateways to send error a control messages to other gateways or hosts
None of these
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem

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