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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
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Answer: A
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. A protocol converter is a hardware
device that converts between two different types of
transmissions, such as asynchronous and synchronous
transmissions. 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. A
concentrator/multiplexor is a device used for combining
several lower-speed channels into a higher-speed channel.
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Which of the following tests is an IS auditor performing when a sample of programs is selected to determine if the source and object versions are the same? A. A substantive test of program library controls B. A compliance test of program library controls C. A compliance test of the program compiler controls D. A substantive test of the program compiler controls
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