Exam-style question
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EC16: For Data communication systems, a student is analysing a frequency filter response. Which option gives the best Principles of communication systems reasoning for the objective "Identify the main parts of a communication system"?.
- A.EC16 correct: In the frequency filter response, the answer follows the signal path from input condition to component response to output change, so it supports Identify the main parts of a communication system.
- B.EC16 distractor: It names a component but does not connect the input condition to the measured output in Principles of communication systems.
- C.EC16 distractor: It reverses the cause-and-effect chain, so the output is explained before the circuit condition is set.
- D.EC16 distractor: It gives a generic electronics definition without applying the frequency filter response context.
Model answer
What a good answer should say
- The correct option is EC16 correct: In the frequency filter response, the answer follows the signal path from input condition to component response to output change, so it supports Identify the main parts of a communication system.
Explanation
Why this works
It is best because it keeps Principles of communication systems anchored to the circuit signal path: input condition, component response, then output change. The distractors are wrong because they omit the output link, reverse the electronics causality, or drift into a generic component definition rather than applying the frequency filter response.
Common mistake
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