An acceptance team is testing a new emergency-response dispatch system. The system meets all technical non-functional requirements: it responds in under 200 milliseconds, is available 99.999% of the time, and encrypts all communications. However, in a simulated emergency drill, dispatchers took significantly longer to process calls than with the old system, and some reported being unsure of the correct procedure. What is the most important conclusion for the acceptance team?

The system may not be fit for purpose despite meeting technical requirements, because quality in use is compromised

The dispatchers need more training before the system can be accepted

The technical non-functional requirements should be relaxed to reduce system complexity

The acceptance test should be repeated with more realistic conditions

A team is acceptance-testing a new document-management system. The system meets all specified non-functional requirements: it responds in under 1 second, is available 99.9% of the time, and encrypts all documents. However, a user study shows that employees take twice as long to find documents compared to the old system, and they express frustration. What is the most likely explanation for this discrepancy?

The non-functional characteristics were verified in isolation, but quality in use depends on the interaction of these characteristics with the user and context

The availability requirement was not actually met during the user study

The security encryption is causing the slowdown

The performance requirement was incorrectly specified

An acceptance team is testing a new online learning platform. The business requirement states that the platform must handle 1,000 concurrent users during peak registration periods without response times exceeding 3 seconds. The team plans to use a load-testing tool to simulate the peak load. What is the primary acceptance criterion being verified?

Performance under specified load conditions

Scalability to handle future growth

Reliability during peak periods

Certified Tester Acceptance Testing

Domain 4Objective 1

Objective: Non-Functional Characteristics and Quality in Use CT-ACT Practice Questions (Page 3)

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 11–15

11foundation · easy
Which of the following is a component of quality in use?
Select an answer first
12expert · hard
An acceptance team is testing a new emergency-response dispatch system. The system meets all technical non-functional requirements: it responds in under 200 milliseconds, is available 99.999% of the time, and encrypts all communications. However, in a simulated emergency drill, dispatchers took significantly longer to process calls than with the old system, and some reported being unsure of the correct procedure. What is the most important conclusion for the acceptance team?
Select an answer first
13expert · hard
A team is acceptance-testing a new document-management system. The system meets all specified non-functional requirements: it responds in under 1 second, is available 99.9% of the time, and encrypts all documents. However, a user study shows that employees take twice as long to find documents compared to the old system, and they express frustration. What is the most likely explanation for this discrepancy?
Select an answer first
14application · medium
An acceptance team is testing a new online learning platform. The business requirement states that the platform must handle 1,000 concurrent users during peak registration periods without response times exceeding 3 seconds. The team plans to use a load-testing tool to simulate the peak load. What is the primary acceptance criterion being verified?
Select an answer first
15application · medium
A government agency is acceptance-testing a new citizen self-service portal. The acceptance team is testing the portal with users who have varying levels of digital literacy, using different devices (desktop, tablet, smartphone), and in different environmental conditions (quiet office, noisy public area). Which component of quality in use is the team specifically addressing?
Select an answer first

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Objective: Non-Functional Characteristics and Quality in Use CT-ACT Practice Questions (Page 3)

Questions 11–15

Which of the following is a component of quality in use?

Keep studying — Domain 4: Acceptance Testing for Non-Functional Requirements