20+ practice questions focused on Software Development Security — one of the most tested topics on the Certified Information Systems Security Professional CISSP exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Software Development Security PracticeA security team is reviewing a web application that allows users to search for products. The application uses a SQL database and constructs queries by concatenating user input directly into the SQL statement. Which of the following is the most effective mitigation against SQL injection attacks?
Explanation: Parameterized queries with prepared statements separate SQL logic from user input by sending the query structure to the database first, then binding input values as data parameters. This prevents the database from interpreting user input as executable SQL code, even if the input contains malicious characters. It is the only defense that completely eliminates the injection vector at the database interaction layer.
During a threat modeling session for a new online banking application, the team uses the STRIDE methodology. Which threat category addresses the risk of an attacker modifying transaction data in transit?
Explanation: Tampering refers to the malicious modification of data. STRIDE's 'T' stands for Tampering.
A development team is fixing a stored cross-site scripting (XSS) vulnerability in a web application that displays user comments. The application stores comments in a database and renders them in HTML. Which of the following is the most secure approach to prevent XSS?
Explanation: Output encoding (C) is the most secure approach because it neutralizes malicious scripts at the point of rendering, ensuring that user-controlled data is treated as text rather than executable code. For HTML contexts, HTML entity encoding (e.g., `<script>`) prevents the browser from interpreting injected tags, regardless of how the data was stored. This aligns with the defense-in-depth principle and is the primary mitigation for stored XSS as recommended by OWASP.
A security architect is designing a system that must continue to function even when a component fails. The architect implements multiple layers of security controls so that if one fails, others still provide protection. Which principle is being applied?
Explanation: Defense in depth (B) is the correct principle because it involves implementing multiple layers of security controls (e.g., firewalls, intrusion detection systems, encryption, access controls) so that if one layer fails or is bypassed, other layers continue to provide protection, ensuring the system remains functional. This directly matches the scenario where the architect designs for continued operation despite component failure by layering controls.
During a penetration test, a security analyst discovers that a web application allows an attacker to bypass authorization and view another user's private messages by simply changing a numeric ID in the URL. Which vulnerability is being exploited?
Explanation: B is correct because the vulnerability allows an attacker to access another user's private messages by simply changing a numeric ID in the URL, which is a classic example of Insecure Direct Object Reference (IDOR). This occurs when the application exposes a direct reference to an internal object (e.g., a database key) without proper access control checks, enabling unauthorized access to resources belonging to other users.
+15 more Software Development Security questions available
Practice all Software Development Security questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Software Development Security. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Software Development Security questions on the CISSP frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Software Development Security is tested as part of the Certified Information Systems Security Professional CISSP blueprint. Practicing with targeted Software Development Security questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Software Development Security is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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