A performance acceptance test for a new email system has been executed. The results show that the average response time for sending an email is 3 seconds, and the 95th percentile is 4 seconds. The acceptance criterion states: 'The average response time for sending an email must be less than 3 seconds.' What is the correct conclusion?

The system fails because the average response time is 3 seconds, which is not less than 3 seconds.

The system passes because the 95th percentile is below 4 seconds, which is acceptable.

The test is inconclusive because the team did not measure the number of concurrent users.

The system passes because the average response time is exactly 3 seconds, which meets the criterion.

If the measured average response time is 3 seconds and the acceptance criterion is 'average response time must be less than 2 seconds', what is the correct conclusion?

The test results are inconclusive because more data is needed.

The system does not meet the acceptance criterion for response time.

The acceptance criterion should be adjusted to 3 seconds to match the results.

The system meets the acceptance criterion because it is close to the target.

Which of the following is a typical performance efficiency requirement that would be validated during acceptance testing?

The system shall respond to user queries within 2 seconds under normal load.

The system shall be available 99.9% of the time during business hours.

The system shall prevent unauthorized access to user data.

The system shall be easy to navigate for new users.

A company is accepting a new customer relationship management (CRM) system. The business stakeholders have stated that the system should 'feel responsive' to users. The acceptance team needs to define a measurable performance efficiency requirement. Which requirement is most appropriate?

The system shall be responsive enough to not frustrate users during normal business hours.

The system shall have an average response time of less than 2 seconds for all transactions.

The system shall respond to user actions immediately, with no noticeable delay.

The system shall display search results within 3 seconds for 90% of requests when 200 users are active.

When analyzing performance efficiency test results, what is the primary basis for determining whether acceptance criteria are met?

Comparing the test results with results from previous test cycles.

Asking the stakeholders if they are satisfied with the performance.

Checking if the system did not crash during the test.

Comparing the measured performance values against the predefined acceptance criteria.

Certified Tester Acceptance Testing

Domain 4Objective 3

Objective: Performance Efficiency CT-ACT Practice Questions (Page 2)

Part of the Domain 4: Acceptance Testing for Non-Functional Requirements domain, which makes up ~28% of our current practice bank. ISTQB does not publish an official question count, but from its 60-minute exam (~25–40 total, ~7–11 in this domain), expect 2–3 from this objective — we provide 17 practice questions to prepare you well beyond it. (estimate)

17questions here

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6concepts

Questions 6–10

6application · medium
A performance acceptance test for a new email system has been executed. The results show that the average response time for sending an email is 3 seconds, and the 95th percentile is 4 seconds. The acceptance criterion states: 'The average response time for sending an email must be less than 3 seconds.' What is the correct conclusion?
Select an answer first
7foundation · easy
If the measured average response time is 3 seconds and the acceptance criterion is 'average response time must be less than 2 seconds', what is the correct conclusion?
Select an answer first
8foundation · easy
Which of the following is a typical performance efficiency requirement that would be validated during acceptance testing?
Select an answer first
9application · medium
A company is accepting a new customer relationship management (CRM) system. The business stakeholders have stated that the system should 'feel responsive' to users. The acceptance team needs to define a measurable performance efficiency requirement. Which requirement is most appropriate?
Select an answer first
10foundation · easy
When analyzing performance efficiency test results, what is the primary basis for determining whether acceptance criteria are met?
Select an answer first

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