Dec-2025 FREE ISTQB CT-UT PRACTICE QUESTIONS AND ANSWERS UPDATES
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ISTQB CT-UT Exam Syllabus Topics:
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NEW QUESTION # 13
Which of the following statements best describe Rapid Iterative Testing and Evaluation?
- A. Testing happens on a regular basis, e.g. each Monday
- B. Testing focuses on instant redesigns and confirming made changes
- C. Testing is quantitative
- D. Testing is informal and many potential users can be accessed
Answer: B
Explanation:
Rapid Iterative Testing and Evaluation (RITE) is a usability method in which usability issues are identified and addressed in short cycles. Unlike traditional usability testing, RITE allows for immediate redesigns and retesting of the improved version within the same study. The goal is to refine the design quickly based on observed usability issues. Option A confuses scheduling with methodology, B is too vague, and D inaccurately characterizes RITE as quantitative, while it is typically qualitative. Therefore, C accurately reflects the purpose and approach of RITE.
References:
* Medlock et al. (2002). The RITE Method: A Rapid Iterative Testing and Evaluation Method
* Nielsen Norman Group: Rapid Iterative Testing
* Usability.gov: RITE Method Overview
NEW QUESTION # 14
Why are positive usability findings of high importance? Which of the following statements is wrong?
- A. Positive usability findings should be used to communicate to the development team which features should not be modified or deleted.
- B. Positive usability findings make it easier to sell the need for correcting usability problems by giving a balanced view.
- C. Positive findings are of high importance because they can be used in the report to justify the costs of the test.
- D. Positive usability findings allow a better view of the usability of the product.
Answer: C
Explanation:
Positive usability findings play a key role in reinforcing what is working well in the user interface. They help:
A: Build developer confidence and soften criticism when pointing out issues.
C: Provide a complete picture of usability strengths and weaknesses.
D: Inform developers what should remain unchanged during redesign.
However, B is incorrect because justifying usability test costs should not rely solely on positive findings. Cost justification should come from the overall impact of usability on user satisfaction, performance, and business outcomes-not just good results.
References:
Nielsen Norman Group: Communicating Usability Findings
Usability.gov: Best Practices for Usability Reporting
ISO 25062 - Usability Test Report Content
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NEW QUESTION # 15
Usability reviews aim to identify potential usability problems based on certain criteria. Which of the following is a reasonable criterion for a usability review?
- A. Statutory Code of Practice
- B. Usability standards
- C. Functional requirements
- D. Opinion of the management
Answer: B
Explanation:
Usability reviews evaluate a system or interface against established usability principles or standards to identify potential issues before user testing. A recognized criterion for such reviews includes adherence to usability standards such as ISO 9241 or the Web Content Accessibility Guidelines (WCAG). These standards are derived from years of research and user-centered design principles. Options A and C do not directly relate to usability. Functional requirements (option B) refer to what the system should do, not how usable it is.
Hence, option D is correct as usability standards provide a consistent, objective basis for evaluating usability.
References:
ISO 9241-110:2020 - Interaction Principles
WCAG 2.1 - Web Content Accessibility Guidelines
Nielsen Norman Group - Heuristic Evaluation
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NEW QUESTION # 16
A "usability requirement" is:
- A. A requirement how to conduct a usability test
- B. A requirement on the usability of a component or system
- C. A requirement needed to define the size of a mobile phone used in a usability test
- D. A requirement needed for a usability tester
Answer: B
Explanation:
A usability requirement specifies how usable a product or component must be, often in terms of effectiveness, efficiency, and user satisfaction, as defined in ISO 9241-11. These requirements ensure that the product meets specific human-centered design goals, such as allowing users to complete tasks accurately and quickly.
Options A and C describe procedural or test setup elements, not actual usability requirements. Option B refers to personnel qualifications, which are not the same as usability requirements related to system behavior or performance.
References:
ISO 9241-11:2018 - Usability: Definitions and Concepts
ISO/IEC 25010:2011 - Product Quality Model (Usability as a quality characteristic) Usability.gov: Defining Usability Requirements
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NEW QUESTION # 17
You're redesigning the web shop of a customer and found out that they are using legacy web design techniques like HTML tables for design matters, making the website hard to be operated using alternative input and output devices (e.g. screen readers).
Which kind of risk is most likely to occur?
- A. User experience risk
- B. Accessibility risk
- C. There's no risk predictable
- D. Usability risk
Answer: B
Explanation:
The use of HTML tables for layout instead of proper semantic HTML and responsive design violates accessibility guidelines, particularly those defined in the Web Content Accessibility Guidelines (WCAG).
Such a design makes it difficult or impossible for users relying on screen readers, keyboard navigation, or other assistive technologies to interact effectively with the site. Therefore, this creates a significant accessibility risk, which is distinct from general usability or user experience risks. Accessibility ensures inclusion of users with physical or cognitive impairments, making option B the correct choice.
References:
* W3C: Web Content Accessibility Guidelines (WCAG) 2.1
* ISO 9241-171:2008 - Software Accessibility
* Usability.gov: Accessibility Guidelines
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NEW QUESTION # 18
In the last project, the usability tests substantially exceeded the budget of the test plan. Which quality control task could have been used to avoid this?
- A. Check that the usability test plan has been properly reviewed
- B. Check that findings are communicated to the stakeholders
- C. Check consumed resources regularly and compare with the estimates
- D. Check whether the usability test report conforms to the best practices
Answer: C
Explanation:
To prevent usability testing from exceeding budget, active monitoring and control of project resources are critical. The best practice is to regularly check consumed time, costs, and effort against the original estimates, allowing timely adjustments to scope or resources. This is a classic quality control practice aligned with ISO
9001 principles and standard project management methodologies. Option A relates to test preparation, option C concerns reporting and communication, and option D applies after test execution. Only option B deals directly with budget control during the test.
References:
* ISO 9001:2015 - Quality Management Systems
* ISTQB: Usability Testing Guidelines
* Nielsen Norman Group: Budgeting for Usability Testing
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NEW QUESTION # 19
Your project manager asked you for your advice. A recent project failed because the users were not satisfied with the final product, although your project manager claimed that she followed the human-centered design process. She interviewed users at the start of the project, created a first prototype and evaluated that prototype.
Which part of the human-centered design process did she miss?
- A. The "analyze"-part
- B. The "design"-part
- C. The "evaluate"-part
- D. The "iterate"-part
Answer: D
Explanation:
The human-centered design process emphasizes iterative development-testing and refining designs through multiple cycles. In the scenario, the project manager interviewed users and evaluated a prototype but did not iterate based on feedback. Skipping iteration likely resulted in unmet user needs. Human-centered design, per ISO 9241-210, includes: understanding context of use, specifying requirements, producing design solutions, and evaluating-repeated iteratively. Hence, option D ("iterate") is correct.
References:
ISO 9241-210:2019 - Human-Centered Design Processes
Usability.gov: Human-Centered Design Activities
Nielsen Norman Group: Iterative Design in UX
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NEW QUESTION # 20
Which of the following is a principal task of the usability tester role?
- A. Discuss findings from usability test
- B. Perform pre-session briefing of participants
- C. Define testing tasks
- D. Communicate with test participant
Answer: D
Explanation:
The usability tester, often synonymous with the usability test moderator in practice, is primarily responsible for interacting directly with the test participants during the usability testing sessions. This role includes communicating with participants to guide them through test tasks, answering questions without leading responses, and ensuring the session runs smoothly. Effective communication is essential to facilitate participant comfort, elicit genuine user behaviors, and capture accurate usability data.
Performing the pre-session briefing (Option A) may be done by the usability tester but is often a shared responsibility or part of test facilitation protocols. Discussing findings (Option C) typically falls to analysts or usability experts after testing sessions are completed and data analyzed. Defining testing tasks (Option D) is usually done by test designers or analysts during test planning, not during the test execution.
Therefore, communicating with test participants during testing is a core, principal task of the usability tester role.
References:
Usability.gov, Usability Testing Basics
Nielsen Norman Group, Moderating Usability Tests
ISO 9241-210:2019 Ergonomics of human-system interaction - Usability testing roles and responsibilities
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NEW QUESTION # 21
A "usability test participant" ...
- A. ... helps to set up the system used for the usability test.
- B. ... can be the organizer of a usability test.
- C. ... is a representative user who solves typical tasks in a usability test.
- D. ... is a person who observes a usability test.
Answer: C
Explanation:
A usability test participant is a person selected to represent the target user group and asked to perform specific tasks in a usability test. Their actions, reactions, and feedback help identify usability issues and evaluate the system's effectiveness, efficiency, and user satisfaction. This role is strictly observational and does not involve organizing, observing, or setting up the test. Options A, B, and C describe other roles (e.g., technical support, observers, or moderators). Only option D accurately reflects the definition of a usability test participant.
References:
ISO 9241-210:2019 - Human-Centered Design
Usability.gov: Roles in a Usability Test
Nielsen Norman Group: Recruiting Test Participants
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NEW QUESTION # 22
You're asked to evaluate the direct interaction between ordinary users and the software product. Which kinds of evaluations would be suited for that?
- A. Usability evaluation
- B. Usability maturity assessment
- C. Accessibility evaluation
- D. Risk assessment
Answer: A
Explanation:
A usability evaluation is specifically designed to assess how real users interact with a software product. It focuses on effectiveness, efficiency, and user satisfaction in completing tasks. This may involve usability testing, expert reviews, or heuristic evaluations. The goal is to identify any usability problems and understand user behavior during real use.
Option A (Accessibility evaluation) targets inclusivity for users with disabilities, not general user interaction.
Option B (Usability maturity assessment) evaluates the organization's usability practices, and Option C (Risk assessment) evaluates potential project or system risks. Only option D directly involves observing and measuring user interaction.
References:
ISO 9241-11:2018 - Usability Definitions and Concepts
Usability.gov: Usability Evaluation Basics
Nielsen Norman Group: Types of Usability Evaluations
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NEW QUESTION # 23
Which of these basic approaches to a software development project follows all key elements of human- centered evaluation?
- A. Define requirements, develop the software, and perform acceptance test
- B. Interview users, develop the software, and perform acceptance test
- C. Iteratively develop prototypes, perform expert reviews, and integrate found issues
- D. Interview users, iteratively develop prototypes, and evaluate the software
Answer: D
Explanation:
Human-centered design, as defined by ISO 9241-210, emphasizes early user involvement, iterative design, and continuous usability evaluation. Option D aligns with this model as it begins with understanding user needs (interview users), proceeds through iterative prototyping (which allows for continuous improvement), and involves user evaluation. This ensures that the final product is shaped by real user input and feedback.
Options A and B lack iteration and continuous evaluation, while option C, although partially aligned, lacks explicit user involvement in the evaluation process, focusing only on expert reviews.
References:
ISO 9241-210:2019 - Human-Centered Design
Nielsen Norman Group: Human-Centered Design Principles
Usability.gov: Human-Centered Design Process
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NEW QUESTION # 24
You are asked to evaluate the usability of a software application for a law firm. Due to time and budget constraints, it is not possible to include users in the evaluation process.
Which of the following is a valid approach for evaluating the usability in this case?
- A. User surveys
- B. Accessibility Evaluation
- C. Usability Review
- D. Usability testing
Answer: C
Explanation:
When actual users cannot be included, a usability review (often an expert or heuristic evaluation) is the most practical method. Trained evaluators examine the interface against usability principles and standards to identify potential issues. Surveys require user input, and usability testing cannot proceed without users.
Accessibility evaluation targets inclusivity for users with impairments, which is related but not a substitute for overall usability evaluation. Therefore, option A is the only valid method under these constraints.
References:
Nielsen Norman Group: Heuristic Evaluation
Usability.gov: Expert Reviews and Inspections
ISO 9241-110 - Usability Principles
NEW QUESTION # 25
As an expert for usability, you're in charge of the usability part of the development of a business application for a large customer. You have worked as a usability expert with the development team for two years and are operating well together; the developers value your feedback and give their bests implementing your suggestions. The product is in an early stage, so there's only a rudimentary prototype available.
Given this information, what is the best approach to verify the usability at the current stage?
- A. Usability maturity assessment
- B. Usability review
- C. Unmoderated usability test
- D. Usability test in the lab
Answer: B
Explanation:
At an early development stage where only a rudimentary prototype exists, a usability review (e.g., expert or heuristic review) is the most effective method. It allows usability specialists to identify potential usability issues without the need for a fully functioning product. Reviews can provide immediate, actionable feedback to guide design improvements before moving into more resource-intensive usability testing. An unmoderated usability test (B) or lab test (D) may be impractical at this stage due to limited interactivity. A usability maturity assessment (C) evaluates organizational processes and is not applicable to evaluating a specific prototype.
References:
Nielsen Norman Group: When to Use Heuristic Evaluation
ISO 9241-210:2019 - Human-Centered Design Processes
Usability.gov: Usability Evaluation Types
NEW QUESTION # 26
Which of the following are common mistakes made in usability testing?
i. The user is too active
ii. Critical results are ignored
iii. No observers involved
iv. Scheduling too late
v. Incorrect focus
- A. i & iii are true, ii, iv & v are false
- B. i, ii & iii are true, iv & v are false
- C. ii, iv & v are true, i & iii are false
- D. ii & iv are true, i, iii & v are false
Answer: C
Explanation:
Common mistakes in usability testing include:
Ignoring critical results (ii): A significant issue if findings are not acted upon.
Scheduling the test too late (iv): This can lead to usability problems being discovered too late to be addressed effectively.
Having the wrong focus (v): For instance, focusing on aesthetics instead of usability goals.
Option i ("user is too active") is not a problem-active participation is necessary. Option iii ("no observers involved") is not a typical mistake, since tests can still be valid even with recorded sessions and later review.
Hence, the correct answer is A: ii, iv & v are true.
References:
Nielsen Norman Group: Common Mistakes in Usability Testing
ISO 9241-210:2019 - Human-Centered Design
Usability.gov: Planning and Conducting Usability Testing
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NEW QUESTION # 27
Which of the following is a key activity in a usability test session?
- A. Test the set up and modify the test script if needed
- B. Extract usability findings and recommendations
- C. Moderate the usability test
- D. Talk to the participant during the completion of a task
Answer: C
Explanation:
Moderating the usability test is a core activity during the actual usability test session. The moderator guides participants through tasks, ensures the session stays on track, and avoids introducing bias. Option A (testing the setup) happens before the session, during preparation. Option C (extracting findings) occurs during analysis, after the test. Option D (talking during task execution) should be minimized unless necessary, to avoid influencing user behavior. Therefore, option B is the only correct answer aligned with best practices in usability testing.
References:
Nielsen Norman Group: Role of the Usability Test Moderator
ISO 25062:2006 - Usability Test Documentation
Usability.gov: Conducting a Usability Test
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NEW QUESTION # 28
Which of the following are advantages of using a usability lab?
i. The context is natural
ii. Test sessions are easy to observe
iii. Inexpensive setup
iv. Similar conditions for all sessions
v. Easy recording of sessions
- A. ii, iv & v are true, i & iii are false
- B. i, ii & v are true, iii & iv are false
- C. ii & iv are true, i, iii & v are false
- D. iii, iv & v are true, i & ii are false
Answer: A
Explanation:
Usability labs provide a controlled environment that offers several advantages for observing and recording usability test sessions. Specifically, they allow for easy observation of participants (ii), standardized conditions for each session (iv), and facilitate audio and video recording for detailed analysis (v). However, the context is not natural (i), because the lab is an artificial setting rather than the user's actual environment.
Also, setting up a professional usability lab is not inexpensive (iii); it typically involves significant costs for equipment, space, and staffing. Therefore, options ii, iv, and v are true, while i and iii are false.
References:
Nielsen Norman Group: Usability Labs - Pros and Cons
ISO 25062:2006 - Usability Test Reporting
Usability.gov: Setting Up a Usability Lab
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NEW QUESTION # 29
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