Which of the following translates e-mail formats from one network to another so that the message
can travel through all the networks?

A.
Gateway

B.
Protocol converter

C.
Front-end communication processor

D.
Concentrator/multiplexor

Explanation:

A gateway performs the job of translating e-mail formats from one network to another so messages
can make their way through all the networks.
Incorrect answers:
B)
A protocol converter is a hardware device that converts between two different types of
transmissions, such as asynchronous and synchronous transmissions.
C)
A front-end communication processor connects all network communication lines to a central
computer to relieve the central computer from performing network control, format conversion and
message handling tasks.
D)
A concentrator/multiplexor is a device used for combining several lower-speed channels into a
higher-speed channel.