📝 Block Coding in Data Link Layer

Q1. In block coding, what symbol represents the total length of a codeword after adding redundant bits?

💡 Difficulty: easy | ✅ Correct: A

Q2. Which statement best compares block coding to convolution coding in terms of implementation complexity?

💡 Difficulty: medium | ✅ Correct: B

Q3. A transmitted codeword is altered by flipping exactly two bits, and the resulting word is still a valid codeword. What does this reveal about the minimum Hamming distance \( d_{\min} \) of the code?

💡 Difficulty: hard | ✅ Correct: B