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πŸ“ The Security Problem in Operating System

πŸ“– From Operating System β€’ 15. Security β€’ 37 questions available

Practice MCQs for The Security Problem in Operating System. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

πŸ”„ Last updated: 2026-07-27

9
Easy Questions
16
Medium Questions
12
Hard Questions

πŸ“ Sample Questions

Q1. A company stores payroll data on a server. An employee accidentally copies the file to a USB drive and loses it. Which type of security violation does this represent?

πŸ”Ή A. Breach of confidentiality
πŸ”Ή B. Breach of integrity
πŸ”Ή C. Breach of availability
πŸ”Ή D. Breach of non‑repudiation

πŸ’‘ Difficulty: easy | βœ… Correct: A

Q2. A malicious attacker exploits a buffer overflow to gain root privileges. Which security principle is being violated?

πŸ”Ή A. Least privilege
πŸ”Ή B. Defense in depth
πŸ”Ή C. Confidentiality
πŸ”Ή D. Availability

πŸ’‘ Difficulty: medium | βœ… Correct: B

Q3. A system uses discretionary access control (DAC). An attacker gains privileges by convincing a user to run malicious code. Which security principle is compromised?

πŸ”Ή A. Principle of least privilege
πŸ”Ή B. Principle of need‑to‑know
πŸ”Ή C. Principle of accountability
πŸ”Ή D. Principle of separation of duties

πŸ’‘ Difficulty: hard | βœ… Correct: A

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πŸ”— Related Topics

πŸ“ Program Threats in Operating SystemπŸ“ Trojan horseπŸ“ Trap doorπŸ“ Logic bombπŸ“ Stack and buffer overflow
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