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📝 Other file access methods

📖 From Operating System • 11. File System Interface • 10 questions available

Practice MCQs for Other file access methods. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-26

3
Easy Questions
4
Medium Questions
3
Hard Questions

📝 Sample Questions

Q1. What is the main difference between mandatory and advisory file locking?

🔹 A. Mandatory locks rely on processes to check for locks, while advisory locks are enforced by the operating system.
🔹 B. Mandatory locks are enforced by the operating system, while advisory locks depend on processes to check for locks.
🔹 C. Mandatory locks allow multiple writers, advisory locks allow only one writer.
🔹 D. Mandatory locks are faster than advisory locks.

💡 Difficulty: easy | ✅ Correct: A

Q2. If a process acquires an exclusive lock on the first 200 bytes of a file, what will happen when another process attempts to acquire a shared lock on bytes 150‑250?

🔹 A. The shared lock will be granted for the non‑overlapping part.
🔹 B. The shared lock will be granted after the exclusive lock is released.
🔹 C. Both locks will be merged into a single lock.
🔹 D. The shared lock will be denied because the overlapping region is already exclusively locked.

💡 Difficulty: medium | ✅ Correct: A

Q3. A Java program needs to ensure that two different threads can write to the first half of a file while multiple threads read the second half concurrently. Which lock strategy using FileChannel.lock best satisfies this requirement?

🔹 A. Use an exclusive lock on the first half and a shared lock on the second half.
🔹 B. Use a shared lock on the first half and an exclusive lock on the second half.
🔹 C. Lock the entire file exclusively.
🔹 D. Do not use any lock.

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 File attributes concepts📝 File operations concepts📝 How many File types in file system📝 File structure in file system📝 Internal file structure
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