A performance risk is identified: the system may not handle the expected peak load during a seasonal sale. Which mitigation strategy is most appropriate to address this risk?

Remove all caching from the system

Increase the number of unit tests

Conduct load testing to validate capacity and tune performance

Delay the release until after the sale

A performance test team has identified three risks for an upcoming release: (1) a potential memory leak in a background job that runs nightly, (2) a slow API endpoint that is used by a mobile app, and (3) a database connection pool exhaustion that could occur under peak load. The team has time to mitigate only one risk before the release. The mobile app is the primary revenue source, and the background job is critical for regulatory reporting. Which risk should be prioritized?

The database connection pool exhaustion, because it could cause widespread failures across all features, including the mobile app and background job.

The memory leak in the background job, because it is critical for regulatory reporting.

The slow API endpoint, because the mobile app is the primary revenue source.

All three risks equally, because each is important in its own way.

A performance test team has identified a risk that a new feature may cause a significant increase in database load. The project manager asks how this risk could affect the project timeline. Which impact is most likely?

The project timeline will be unaffected because database performance is not a concern.

The team may need to allocate additional time for database optimization and retesting, potentially delaying the release.

The timeline will be shortened because the team will work faster to fix the issue.

The only impact is on the operations team after release, not on the development timeline.

A performance test team has identified two risks: (1) a potential memory leak in a rarely used reporting module, and (2) a likely bottleneck in the login service that affects all users during peak load. The team has limited resources. Which risk should be prioritized for mitigation?

The login service bottleneck, because it has high impact on all users and high likelihood of occurring under peak load.

Neither risk, because performance testing is only for post-release monitoring.

Both risks equally, because all risks must be addressed with the same urgency.

The memory leak in the reporting module, because it is a technical debt that must be fixed immediately.

A team is about to start coding a new microservices-based system. The performance test lead wants to reduce the risk of performance issues being discovered late. Which practice is most effective to adopt during the implementation phase?

Wait until all microservices are integrated before running any performance tests.

Conduct performance testing on each microservice in isolation as soon as it is developed, using stubs for dependencies.

Defer performance testing to the operations team after deployment.

Rely on code reviews to catch all performance issues.

Certified Tester Performance Testing

Domain 3Objective 3

Performance Risks Across the Software Development Lifecycle CT-PT Practice Questions (Page 2)

Part of the Performance Testing in the Software Lifecycle domain, which makes up ~19% of our current practice bank. ISTQB does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–11 in this domain), expect 2–3 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

4concepts

Questions 6–10

6foundation · easy
A performance risk is identified: the system may not handle the expected peak load during a seasonal sale. Which mitigation strategy is most appropriate to address this risk?
Select an answer first
7expert · hard
A performance test team has identified three risks for an upcoming release: (1) a potential memory leak in a background job that runs nightly, (2) a slow API endpoint that is used by a mobile app, and (3) a database connection pool exhaustion that could occur under peak load. The team has time to mitigate only one risk before the release. The mobile app is the primary revenue source, and the background job is critical for regulatory reporting. Which risk should be prioritized?
Select an answer first
8application · medium
A performance test team has identified a risk that a new feature may cause a significant increase in database load. The project manager asks how this risk could affect the project timeline. Which impact is most likely?
Select an answer first
9application · medium
A performance test team has identified two risks: (1) a potential memory leak in a rarely used reporting module, and (2) a likely bottleneck in the login service that affects all users during peak load. The team has limited resources. Which risk should be prioritized for mitigation?
Select an answer first
10application · medium
A team is about to start coding a new microservices-based system. The performance test lead wants to reduce the risk of performance issues being discovered late. Which practice is most effective to adopt during the implementation phase?
Select an answer first

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