Free ISSAP Security Design Principles Questions and Answers — Questions and Answers
Question 1: Which of the following is the primary goal of security design principles?
- To increase system usability
- To ensure system availability only
- To reduce vulnerabilities and mitigate risks (Correct answer)
- To lower operational costs
Correct answer: To reduce vulnerabilities and mitigate risks
The primary goal of security design principles is to build systems that are inherently resilient against attacks. By incorporating these principles, architects aim to minimize potential weaknesses (vulnerabilities) and reduce the likelihood and impact of security incidents (risks).
Question 2: What is the principle of "least privilege" in security design?
- Assigning users the highest possible permissions
- Limiting access rights to the minimum necessary for a role (Correct answer)
- Ensuring all users have administrative access
- Disabling user authentication entirely
Correct answer: Limiting access rights to the minimum necessary for a role
The principle of "least privilege" dictates that users, programs, or processes should only be granted the absolute minimum permissions required to perform their legitimate functions. This minimizes the potential damage if an account is compromised, as an attacker would have limited access.
Question 3: Which security design principle involves dividing a system into smaller parts to reduce overall risk?
- Fail-safe defaults
- Security through obscurity
- Economy of mechanism
- Separation of duties (Correct answer)
Correct answer: Separation of duties
Separation of duties is a security design principle that involves dividing critical tasks among multiple individuals or components to prevent any single person or entity from having complete control. This reduces the risk of fraud, error, or malicious activity by requiring collusion to compromise the system.
Question 4: The concept of "defense in depth" relies on which of the following?
- A single strong layer of defense
- Multiple redundant layers of security controls (Correct answer)
- Physical security alone
- A focus on network security only
Correct answer: Multiple redundant layers of security controls
"Defense in depth" is a cybersecurity strategy that employs a series of overlapping and redundant security controls to protect information and systems. If one layer of defense fails, subsequent layers are in place to detect and prevent an attack, providing a more robust security posture.
Question 5: What does the principle of "fail-safe defaults" emphasize?
- Systems should default to the most permissive state
- Systems should fail in a secure state, restricting access (Correct answer)
- Users should determine default settings
- No restrictions should be applied during failure
Correct answer: Systems should fail in a secure state, restricting access
The principle of "fail-safe defaults" ensures that when a system component fails or an error occurs, it defaults to a secure, restrictive state rather than an open or permissive one. This prevents unauthorized access or data exposure during system malfunctions, maintaining security.
Free ISSAP Security Design Principles Questions and Answers
Which of the following is the primary goal of security design principles?