📝 Block Coding converting digital data to digital signals

Q1. If a block code maps 4 data bits into 7 transmitted bits, what is the code rate?

💡 Difficulty: easy | ✅ Correct: A

Q2. When a block code adds two parity bits to a 5‑bit message, which statement best explains the effect on error detection capability?

💡 Difficulty: medium | ✅ Correct: C

Q3. Consider a (7,4) Hamming code. Which of the following statements about its syndrome decoding is logically deduced?

💡 Difficulty: hard | ✅ Correct: D