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Contents
Chapter 5 · NetworkPractice
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CONCEPT PRACTICE

Communication Control Unit

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Volume 1 · Chapter 5 · Textbook Exercises · Q2

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Among the descriptions concerning devices that constitute a network, which of the following is an explanation concerning the CCU (Communication Control Unit)?

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Source: FE Vol 1.pdf, PDF page 354, textbook p. 344 · Information-technology Promotion Agency, Japan · First Edition: April, 2015. ID: tb-v1-c5-q2. Publisher answer and commentary · private review.

Original question · Q2
Q2 Among the descriptions concerning devices that constitute a network, which of the following is an explanation concerning the CCU (Communication Control Unit)? a) It converts the digital signals in a computer to a format that is suitable for transmission. b) It dials the telephone number of the terminal in order to call the terminal. c) It performs conversion from a digital signal to an analog signal, and vice versa. d) It assembles or disassembles the data to be transmitted, or performs error control of the data.

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