📖 From Data Communication & Networks • 4. Digital Transmission • 53 questions available
Practice MCQs for Pulse Code Modulation(PCM) technique converting analog data to digital signals. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.
🔄 Last updated: 2026-07-31
Q1. What does PCM stand for?
💡 Difficulty: easy | ✅ Correct: A
Q2. If a data pattern consists of alternating 0 and 1 bits, how does the signal rate compare to a pattern of all 1’s when \(r=2\)?
💡 Difficulty: medium | ✅ Correct: C
Q3. A PCM transmitter sends \(2\) bits per signal element (\(r=0.5\)). When the source data rate doubles, what must happen to maintain the same bandwidth?
💡 Difficulty: hard | ✅ Correct: A
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