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📝 Efficiency in File System Implementation

📖 From Operating System • 12. File System Implementation • 12 questions available

Practice MCQs for Efficiency in File System Implementation. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-27

2
Easy Questions
5
Medium Questions
5
Hard Questions

📝 Sample Questions

Q1. What is the number of bytes available for user data in each block when the block size is 512 bytes and the pointer occupies 4 bytes?

🔹 A. 508
🔹 B. 504
🔹 C. 516
🔹 D. 512

💡 Difficulty: easy | ✅ Correct: A

Q2. Which characteristic makes direct (random) access inefficient in a linked‑allocation file system?

🔹 A. Each block contains a checksum that must be verified
🔹 B. The file size must be known before any read operation
🔹 C. The system must follow a pointer chain from the first block to reach the desired block
🔹 D. Blocks are stored in compressed form requiring decompression

💡 Difficulty: medium | ✅ Correct: A

Q3. A disk contains 10,000 blocks of 512 bytes each. If 2,000 files each have an average length of 5 blocks, what is the total pointer overhead in megabytes?

🔹 A. 0.038 MB
🔹 B. 0.38 MB
🔹 C. 3.8 MB
🔹 D. 38 MB

💡 Difficulty: hard | ✅ Correct: A

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🔗 Related Topics

📝 File System Structure in operating system📝 Overview of File System Implementation in Operating System📝 Partitions and mounting in File System Implementation📝 Virtual File Systems in File System Implementation📝 Linear list Implementation in Directory
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