Which system component applies rules to stored knowledge to reach conclusions or recommendations?
Correct answer: D. An expert system inference engine
- A. A transaction receipt printer
- B. A word-processing template
- C. A network interface card
- D. An expert system inference engine
Explanation
An inference engine applies logical rules to facts in a knowledge base and produces conclusions or recommendations. The other options support document creation, networking, or output rather than expert reasoning.
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About Business Communication and Information Systems
Business communication covers the sender, message, medium, receiver and feedback, together with formal and informal channels, written and oral reports, nonverbal signals and barriers such as language, noise and poor listening. Information systems explain how data becomes useful information through transaction processing, management reporting and decision-support systems.
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