Q. Which one of the following is not correct? (A) application layer protocols are used by both source and destination devices during a communication session (B) application layer protocols implemented on the source and destination host must match (C) both (a) and (b) (D) none of the mentioned 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (C) both (a) and (b)