J Jatin Dubey 🎓 Extraordinary ⭐ 3.78K Points 📊 Linux Q. Which of the following is not a valid execution level? (A) S (B) 0 (C) 8 (D) 1 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (C) 8 Explanation: The execution levels are : 0, 1, 2, 3, 4, 5, 6 and S 0 = shutdown 1 = single-user (maintenance mode) 2 = multi-user mode 3-5 = same as 2 6 = reboot