Which of the following is an example of an acceptance criterion for a non-functional requirement?

The system shall store user data in a database

The system shall allow users to log in with a valid username and password

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

The system shall display a welcome message after login

Which of the following best defines 'quality in use'?

The number of defects found during testing

The degree to which a product meets its functional requirements

The speed at which the system processes transactions

The extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency, and satisfaction

An acceptance test for a new inventory management system reveals that the system is highly reliable (no crashes), very fast (all queries under 1 second), and secure (all data encrypted). However, warehouse staff report that the system is difficult to learn and they frequently make errors when entering stock counts. What does this indicate about the relationship between non-functional characteristics and quality in use?

Quality in use is determined solely by non-functional characteristics

The system has poor reliability despite the test results

High-quality non-functional characteristics do not automatically result in high quality in use

The acceptance test should have focused only on functional requirements

An acceptance test for a new self-service tax-filing application measures the percentage of users who complete their filing without errors, the time taken to complete the filing, and the user's confidence in the accuracy of their filing. Which quality-in-use components are being assessed?

Satisfaction, freedom from risk, and context coverage

Effectiveness, efficiency, and satisfaction

Efficiency, satisfaction, and context coverage

Effectiveness, efficiency, and freedom from risk

How does acceptance testing verify that non-functional characteristics contribute to quality in use?

By reviewing the source code for best practices

By executing test cases that measure the non-functional characteristics in realistic conditions

By checking that all functional requirements are implemented

By asking stakeholders to estimate the system's performance

Certified Tester Acceptance Testing

Domain 4Objective 1

Objective: Non-Functional Characteristics and Quality in Use CT-ACT Practice Questions (Page 1)

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 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

4concepts

Questions 1–5

1foundation · easy
Which of the following is an example of an acceptance criterion for a non-functional requirement?
Select an answer first
2foundation · easy
Which of the following best defines 'quality in use'?
Select an answer first
3application · medium
An acceptance test for a new inventory management system reveals that the system is highly reliable (no crashes), very fast (all queries under 1 second), and secure (all data encrypted). However, warehouse staff report that the system is difficult to learn and they frequently make errors when entering stock counts. What does this indicate about the relationship between non-functional characteristics and quality in use?
Select an answer first
4application · medium
An acceptance test for a new self-service tax-filing application measures the percentage of users who complete their filing without errors, the time taken to complete the filing, and the user's confidence in the accuracy of their filing. Which quality-in-use components are being assessed?
Select an answer first
5foundation · easy
How does acceptance testing verify that non-functional characteristics contribute to quality in use?
Select an answer first

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