📝 Line coding process of converting digital data to digital signals

Q1. What is the primary purpose of line coding in digital communication systems?

💡 Difficulty: easy | ✅ Correct: C

Q2. In Manchester encoding, each bit period contains a transition in the middle. If the receiver detects a transition at the start of a bit interval, what does this indicate about synchronization?

💡 Difficulty: medium | ✅ Correct: B

Q3. Suppose a line coding scheme uses a transition for each ‘1’ and no transition for ‘0’ (NRZ‑I). If the receiver observes a transition at the start of a bit period, what can be inferred about the transmitted bit?

💡 Difficulty: hard | ✅ Correct: B