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📝 Cambridge CAP System is an example of Capability Based Systems

📖 From Operating System • 14. Protection • 12 questions available

Practice MCQs for Cambridge CAP System is an example of Capability Based Systems. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-27

2
Easy Questions
6
Medium Questions
4
Hard Questions

📝 Sample Questions

Q1. In the lock–key protection mechanism, what is the name of the list that contains the unique bit patterns assigned to each domain?

🔹 A. Locks
🔹 B. Keys
🔹 C. Capabilities
🔹 D. Access lists

💡 Difficulty: easy | ✅ Correct: B

Q2. Which characteristic of capability lists makes revocation potentially inefficient compared to the lock–key mechanism?

🔹 A. Capabilities are stored with processes
🔹 B. Capabilities require cryptographic signatures
🔹 C. Capabilities cannot be duplicated
🔹 D. Capability lists are global

💡 Difficulty: medium | ✅ Correct: A

Q3. What is a primary security advantage of the lock–key mechanism over pure capability lists regarding key distribution?

🔹 A. Keys can be publicly disclosed without risk
🔹 B. Keys are managed by the OS, preventing processes from forging or copying them
🔹 C. Keys are shorter than capabilities
🔹 D. Keys automatically expire after use

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 Goals of Protection in Operating System📝 Principles of Protection in Operating System📝 Domain of Protection in Operating System📝 Domain structure for protection in Operating System📝 UNIX example of protection in Operating System
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