A company is migrating a legacy monolithic application to a microservices architecture. The performance test team is asked to plan performance testing for the new system. The team has limited time and budget. What is the BEST approach?

Use the same performance test scripts from the legacy system without modification.

Run a full performance test on every microservice individually and then on the entire system.

Defer performance testing until after the migration is complete and the system is in production.

Prioritize performance testing on the critical user journeys and the new microservices interactions, using the legacy system's performance as a baseline.

Why is it important to consider performance testing early in the software lifecycle?

To identify performance risks and requirements before design decisions are made

To ensure the system is deployed faster

To avoid the need for any testing later

To satisfy regulatory compliance only

A performance test team is executing a soak test for a financial application. The test has been running for 6 hours without issues. Suddenly, the response times begin to degrade, and memory usage on the application server is increasing steadily. The test is scheduled to run for 24 hours. What is the MOST appropriate action?

Continue the test to see if the memory usage stabilizes or if the degradation worsens, documenting the trend.

Reduce the load to see if the memory usage decreases.

Stop the test immediately and report a memory leak to the development team.

Restart the application server and continue the test from the beginning.

A project is in the maintenance phase. A new feature has been added that changes the authentication mechanism. The performance test team needs to verify that the change does not degrade performance. What is the MOST appropriate activity?

Run a full load test on the entire system to ensure all features still perform well.

Ask the developer to run a quick performance test locally and report the results.

Skip performance testing because the change is only in the authentication mechanism.

Run a regression performance test focusing on the authentication flow and compare the results with the baseline from the previous release.

Which of the following is a key activity in performance testing?

Defining performance test objectives

Certified Tester Performance Testing

Domain 3Objective 4

Performance Testing Activities CT-PT Practice Questions (Page 3)

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 11–15

11expert · hard
A company is migrating a legacy monolithic application to a microservices architecture. The performance test team is asked to plan performance testing for the new system. The team has limited time and budget. What is the BEST approach?
Select an answer first
12foundation · easy
Why is it important to consider performance testing early in the software lifecycle?
Select an answer first
13expert · hard
A performance test team is executing a soak test for a financial application. The test has been running for 6 hours without issues. Suddenly, the response times begin to degrade, and memory usage on the application server is increasing steadily. The test is scheduled to run for 24 hours. What is the MOST appropriate action?
Select an answer first
14expert · hard
A project is in the maintenance phase. A new feature has been added that changes the authentication mechanism. The performance test team needs to verify that the change does not degrade performance. What is the MOST appropriate activity?
Select an answer first
15foundation · easy
Which of the following is a key activity in performance testing?
Select an answer first

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