Which of the following is a telecommunication device that translates data from digital to analog form and back to digital? A. Multiplexer B. Modem C. Protocol converter D. Concentrator
Correct Answer: B
Explanation:
Explanation: A modem is a device that translates data from digital form and then back to digital for communication over analog lines. Reference: Information Systems Audit and Control Association, Certified Information Systems Auditor 2002 review manual, Chapter 3: Technical Infrastructure and Operational Practices (page 114).
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