A cloud service company is proposing a solution to a major sporting venue. The solution offers 99.999% availability during special events, which is proven through specialized testing. Which of the fol

Vulnerability testing identifies weaknesses but does not actively exploit them or confirm the system's ability to recover from failures or handle high traffic.

Penetration testing simulates real-world attacks to identify security vulnerabilities that could lead to service disruptions and impact availability if exploited. By finding and fixing these vulnerabilities, the overall resilience and therefore availability of the system are improved.

Load testing assesses performance under heavy user traffic but primarily focuses on capacity and response times, not the system's ability to recover from component failures.

Failover testing directly verifies the system's ability to automatically switch to redundant components or systems when a primary component fails, ensuring continuous operation and validating high availability claims. This type of testing confirms that redundancy mechanisms are properly configured and function as expected to prevent downtime.

Integration testing verifies that different modules or services work together correctly, which is important for functionality but not a direct method to confirm high availability or resilience to failures.