R Rati Dubey 🎓 Tutor III ⭐ 8.55K Points 📊 Hadoop Q. What happens if the NameNode crashes in an HDFS cluster? (A) All data is lost (B) DataNodes stop working (C) The cluster becomes inaccessible (D) Data gets replicated automatically 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (C) The cluster becomes inaccessible Explanation: If the NameNode crashes, the cluster becomes inaccessible since it stores all the metadata.