The hardware device Jhat acts as both a switching and connecting unit

1.	The hardware device Jhat acts as both a switching and connecting unit is called a(n):
A.	concentrator
B.	RS-232C port
C.	multiplexer
D.	communications processor
E.	None of the above
Answer» D. communications processor

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The hardware device Jhat acts as both a switching and connecting unit is called a(n):

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