Which security testing technique involves simulating an attack on a system to evaluate its resistance to malicious activities?

Question

BlackTom AI · Accepted Answer

Penetration testing simulates an adversary attempting to exploit vulnerabilities, so b. Penetration testing is the correct choice.

1. Relevant knowledge points and concepts
- Penetration testing (pen testing): an authorized, controlled simulation of attacks against a system, application, or network to discover and exploit vulnerabilities and assess real-world security posture. It often includes reconnaissance, vulnerability scanning, exploitation, and reporting.
- Performance testing: measures system responsiveness, stability, scalability and throughput under load (not focused on security exploitation).
- White-box testing: in software testing, means the tester has internal knowledge of the system (code, architecture) and uses that knowledge to design tests; it’s a test design approach rather than a simulated external attack by itself.
- Regression testing: re-running functional and non-functional tests after changes to ensure existing functionality still works; again not an attack simulation.

2. Step-by-step reasoning process
Step 1: Read the question asking for a security testing technique that “involves simulating an attack on a system to evaluate its resistance to malicious activities.”  
Step 2: Compare each option to that definition:
- Option a: Performance testing — focuses on speed/throughput, not attack simulation. Eliminate.  
- Option b: Penetration testing — explicitly defined as simulating attacks to find exploitable vulnerabilities. Matches exactly.  
- Option c: White-box testing — describes knowledge level of tester; could be used in security testing but is not itself the attack-simulation technique. Eliminate.  
- Option d: Regression testing — ensures previously working features still work after changes; not about simulating attacks. Eliminate.  
Step 3: Conclude option b fits the definition precisely.

3. Intermediate steps / illustrative notes
- Pen-test phases: reconnaissance → scanning → exploitation → post-exploitation → reporting. These steps demonstrate how an attack is simulated in a controlled way to evaluate resistance.

4. Why the correct answer is correct
Penetration testing explicitly aims to emulate malicious actors to uncover exploitable weaknesses and measure how well defenses hold up — matching the phrase “simulating an attack on a system to evaluate its resistance to malicious activities.”

5. Why the other options are incorrect
- a. Performance testing: measures performance metrics, not security attacks.  
- c. White-box testing: a testing approach assuming internal knowledge; not specifically an attack simulation.  
- d. Regression testing: validates unchanged behavior after updates; unrelated to attack simulation.

6. Conclusion
Therefore, the correct answer is b. Penetration testing, which matches the provided answer.

Which security testing technique involves simulating an attack on a system to evaluate its resistance to malicious activities?单项选择题

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