Exam-style question
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In terms of noise tolerance, which statement is true?.
- A.Digital communication is more tolerant to noise because errors can be detected and corrected
- B.Analogue communication is more tolerant to noise because it can be filtered
- C.Both are equally tolerant to noise
- D.Neither can be affected by noise
Model answer
What a good answer should say
- Digital communication is more tolerant to noise because errors can be detected and corrected
Explanation
Why this works
Define both: Analogue signals degrade gradually with noise, while digital signals maintain integrity until a threshold is exceeded. The key difference is error detection/correction capability.
Digital systems use coding to identify and fix errors, making them more noise‑tolerant. Analogue signals cannot recover from noise once it has altered the waveform.
Therefore the correct statement highlights digital’s superior noise tolerance.
Common mistake
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