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📝 Different Other Cyclic Codes

📖 From Data Communication & Networks • 10. Error Detection and Correction • 7 questions available

Practice MCQs for Different Other Cyclic Codes. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-31

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📝 Sample Questions

Q1. If during the CRC division the leftmost bit of the current dividend segment is 0, what can be inferred about the XOR result of that step?

🔹 A. The divisor bits become all zeros, so the XOR yields the unchanged remainder bits.

🔹 B. The divisor bits become 011, causing a change in the remainder.

🔹 C. The XOR operation is skipped entirely.

🔹 D. The remainder is forced to 1 regardless of previous bits.

💡 Difficulty: easy | ✅ Correct: A

Q2. Compare the step count in the hardware simulator shown in Figure 10.12 with the paper‑and‑pencil method. Which statement best explains the difference?

🔹 A. Both methods use the same number of steps; the difference is only visual.

🔹 B. The hardware simulator uses more steps because it processes one bit per clock tick, while the manual method aligns the divisor to multiple bits at once.

🔹 C. The hardware simulator reduces steps by parallelizing XOR operations.

🔹 D. The manual method uses extra steps to account for error detection.

💡 Difficulty: medium | ✅ Correct: B

Q3. If a single bit error occurs in the transmitted codeword, which of the following statements about the CRC detection capability is always true?

🔹 A. The CRC will always detect the error regardless of the generator polynomial.

🔹 B. The error will be detected only if the generator polynomial has more than two terms.

🔹 C. The error will be detected provided the generator polynomial is not a factor of \(x^k\) where k is the error position.

🔹 D. The error may go undetected if the error pattern matches the generator polynomial.

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 Types of Errors in Data Link Layer 📝 Redundancy error detecting and correcting 📝 Error Detection versus Correction in Data Link Layer 📝 Redundancy hrough Coding 📝 Block Coding in Data Link Layer

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