CV0-003 · Question #293
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…
The correct answer is B. Penetration testing D. Failover testing. Failover testing directly validates that redundant systems sustain 99.999% availability when components fail, while penetration testing confirms the solution remains available under adversarial conditions common at high-profile public events.
Question
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 following techniques should be applied to confirm the high availability claimed by the company? (Select TWO.)
Options
- AVulnerability testing
- BPenetration testing
- CLoad testing
- DFailover testing
- EIntegration testing
How the community answered
(54 responses)- A7% (4)
- B78% (42)
- C11% (6)
- E4% (2)
Why each option
Failover testing directly validates that redundant systems sustain 99.999% availability when components fail, while penetration testing confirms the solution remains available under adversarial conditions common at high-profile public events.
Vulnerability scanning passively identifies weaknesses in the configuration but does not simulate active failures or attacks to confirm that the system behaves correctly under real stress conditions.
Penetration testing simulates real-world attacks - including denial-of-service vectors - that could disrupt service availability during a high-profile sporting event, confirming the system's resilience against threats that would undermine the high-availability claim.
Load testing measures throughput and response time under heavy concurrent traffic but does not exercise failover mechanisms or security resilience needed to certify the stated high-availability claim.
Failover testing deliberately triggers the failure of primary components to verify that standby systems activate automatically and correctly, confirming the solution can sustain the 99.999% uptime guarantee without measurable service interruption.
Integration testing confirms that system components communicate as designed but does not evaluate system behavior during hardware failures, high concurrency, or adversarial conditions relevant to availability claims.
Concept tested: High availability confirmation via failover and penetration testing
Source: https://learn.microsoft.com/en-us/azure/architecture/framework/resiliency/testing
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