During the requirements phase, the team identifies a risk that the system may not meet the expected response time for a critical search function. Which mitigation strategy is most appropriate to apply during this phase?

Optimize the search algorithm immediately before any code is written.

Add more servers to the production environment to ensure fast response times.

Defer the decision until after the system is built and tested.

Document the response time requirement as a measurable acceptance criterion, such as '95% of searches must complete within 2 seconds'.

A performance risk has a low likelihood of occurring but would have a catastrophic impact on the business if it did occur. How should this risk be prioritized?

Low priority because the likelihood is low

No priority because it is unlikely to happen

Medium priority because likelihood and impact cancel out

High priority because the impact is severe

A team is planning to use a third-party API for a new feature. During the design phase, they note that the API has a rate limit of 100 requests per minute. What is the most important performance risk to consider?

The API's performance is irrelevant because it is external.

The API will automatically increase its rate limit when the application needs more capacity.

The application may exceed the rate limit during peak usage, causing requests to fail or be delayed.

The only risk is the cost of using the API, not performance.

A company is migrating a legacy system to a new platform. The performance test team has identified a risk that the new platform may not support the same number of concurrent users as the legacy system. The migration deadline is fixed, and the team has limited resources. What is the most important consideration when assessing the impact of this risk?

The number of developers who worked on the legacy system.

The number of users who will be affected if the new platform cannot handle the load.

The cost of the new platform compared to the legacy system.

The color of the new platform's user interface.

Certified Tester Performance Testing

Domain 3Objective 3

Performance Risks Across the Software Development Lifecycle 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

11foundation · easy
When prioritizing performance risks, which two factors should be combined to determine the relative importance of each risk?
Select an answer first
12application · medium
During the requirements phase, the team identifies a risk that the system may not meet the expected response time for a critical search function. Which mitigation strategy is most appropriate to apply during this phase?
Select an answer first
13foundation · easy
A performance risk has a low likelihood of occurring but would have a catastrophic impact on the business if it did occur. How should this risk be prioritized?
Select an answer first
14application · medium
A team is planning to use a third-party API for a new feature. During the design phase, they note that the API has a rate limit of 100 requests per minute. What is the most important performance risk to consider?
Select an answer first
15expert · hard
A company is migrating a legacy system to a new platform. The performance test team has identified a risk that the new platform may not support the same number of concurrent users as the legacy system. The migration deadline is fixed, and the team has limited resources. What is the most important consideration when assessing the impact of this risk?
Select an answer first

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Performance Risks Across the Software Development Lifecycle CT-PT Practice Questions (Page 3)

Questions 11–15

When prioritizing performance risks, which two factors should be combined to determine the relative importance of each risk?

During the requirements phase, the team identifies a risk that the system may not meet the expected response time for a critical search function. Which mitigation strategy is most appropriate to apply during this phase?

A performance risk has a low likelihood of occurring but would have a catastrophic impact on the business if it did occur. How should this risk be prioritized?

A team is planning to use a third-party API for a new feature. During the design phase, they note that the API has a rate limit of 100 requests per minute. What is the most important performance risk to consider?

Keep studying — Performance Testing in the Software Lifecycle