Pass Usability Testing CT-UT exam [Jun 11, 2026] Updated 40 Questions [Q23-Q47]

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Pass Usability Testing CT-UT exam [Jun 11, 2026] Updated 40 Questions

ISTQB CT-UT Actual Questions and 100% Cover Real Exam Questions

NEW QUESTION # 23
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. There's no risk predictable
  • B. User experience risk
  • C. Accessibility risk
  • D. Usability risk

Answer: C

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 # 24
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 are true, i, iii & v are false
  • B. iii, iv & v are true, i & ii are false
  • C. i, ii & v are true, iii & iv are false
  • D. ii, iv & v are true, i & iii are false

Answer: D

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 # 25
You're conducting a user survey and you have reached the third stage, selecting an appropriate questionnaire.
You have decided to use a standardized questionnaire as you want to benchmark against previous usability measurements.
Which of the following user questionnaires allow benchmarking against previous usability measurements?
i. SUS
ii. SUMI
iii. WAMMI

  • A. i is true, ii & iii are false
  • B. i, ii and iii are true
  • C. ii & iii are true, i is false
  • D. i & ii are true, iii is false

Answer: B

Explanation:
SUS (System Usability Scale), SUMI (Software Usability Measurement Inventory), and WAMMI (Website Analysis and Measurement Inventory) are all validated, standardized usability questionnaires that support benchmarking. They allow comparison against known usability scores from a wide variety of systems. These instruments provide numeric scores that can be interpreted using benchmark datasets or industry standards.
Therefore, all three-i, ii, and iii-are true, making D the correct answer.
References:
Brooke, J. (1996). SUS - A Quick and Dirty Usability Scale
Kirakowski, J. (1994). SUMI Development
Here are the verified answers and detailed explanations for Questions 22 through 25, formatted in your specified structure:
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NEW QUESTION # 26
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. Opinion of the management
  • B. Usability standards
  • C. Functional requirements
  • D. Statutory Code of Practice

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 # 27
Which of these basic approaches to a software development project follows all key elements of human- centered evaluation?

  • A. Iteratively develop prototypes, perform expert reviews, and integrate found issues
  • B. Define requirements, develop the software, and perform acceptance test
  • C. Interview users, develop the software, and perform acceptance test
  • 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 # 28
Which of the following is the best description for a usability test session?

  • A. A test activity specified by the moderator that needs to be accomplished by a usability test participant within a given period of time.
  • B. A document specifying a sequence of actions for the execution of a usability test.
  • C. A period of time in which a usability test participant is executing tests, moderated by a moderator and observed by a number of observers.
  • D. A black-box test technique in which test cases are designed to execute usability scenarios.

Answer: C

Explanation:
A usability test session is a controlled period during which a test participant performs tasks using the system under test while being observed by a moderator and sometimes additional stakeholders or observers. The goal is to understand how users interact with the interface and identify usability problems. Option A describes an individual task, not the whole session. Option C refers to a test plan or test script, and Option D describes a test technique rather than a usability session. Thus, option B provides the most accurate and comprehensive definition.
References:
ISO 25062:2006 - Common Industry Format (CIF)
Nielsen Norman Group: Usability Testing 101
Usability.gov: Usability Test Sessions
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NEW QUESTION # 29
A large customer complained that a business application developed by your company sometimes transfers the wrong amount of money to clients, although there are no complaints of the actual users. The expected amount differs from the actually transferred amount by a factor of 10 or 100. After analyzing the log files, you found out that the application itself works fine. The problem seems to be caused by confusing text fields and labels for the decimal place, leading to user errors.
Which usability risk should be reasonably addressed for the next release?

  • A. Increased liability through risk to financial loss caused by a poorly designed or deceptive user interface
  • B. Users buy the software product but repeatedly need to call support because they don't understand how to use it
  • C. Users won't buy or use the software product because it lacks effectiveness, efficiency or satisfaction
  • D. Users resist using a software product which is essential for their daily work because it lacks usability

Answer: A

Explanation:
The scenario describes a situation where the interface misleads users into making serious financial mistakes due to poor design, such as confusing decimal separators. Even though the system functions correctly, it facilitates critical user errors. This constitutes a major usability risk with potential legal and financial consequences. Therefore, the correct risk to address is increased liability due to financial loss caused by a poorly designed or deceptive interface (option D). The other options focus on usability-related dissatisfaction, resistance, or lack of adoption, which are not the key concern in this scenario.
References:
ISO 9241-210:2019 - Risk Management in Usability Engineering
Nielsen Norman Group: Error Prevention in UI Design
IEEE 1028: Standard for Software Reviews and Risk-Based Usability
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NEW QUESTION # 30
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 "iterate"-part
  • C. The "evaluate"-part
  • D. The "design"-part

Answer: B

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 # 31
A company distributes its products over a web shop where users can put items in their shopping cart. After they click on "checkout", the checkout process starts and users cannot go back anymore to correct possible mistakes. The only way is to hit the "back" button of the browser, which might lead to an expired session and therefore losing all items in the shopping cart.
Which of the following heuristics would best describe this usability issue?

  • A. Visibility of system status
  • B. Aesthetic and minimalist design
  • C. User control and freedom
  • D. Help and documentation

Answer: C

Explanation:
The described issue violates the usability heuristic "User control and freedom," as defined by Jakob Nielsen.
This principle emphasizes that users should have the ability to undo and redo actions and navigate freely without being trapped in irreversible sequences. In the scenario, users are forced into the checkout process without a clear way to return or correct mistakes, except through the unreliable and disruptive back button.
This design flaw undermines user autonomy and can result in lost progress or frustration.
References:
Nielsen Norman Group: 10 Usability Heuristics for User Interface Design ISO 9241-110:2020 - Interaction Principles
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NEW QUESTION # 32
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. Unmoderated usability test
  • B. Usability test in the lab
  • C. Usability maturity assessment
  • D. Usability review

Answer: D

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 # 33
Which of the following statements about usability test plans is true?

  • A. It should contain the briefing instructions
  • B. It contains a schedule
  • C. It contains the results of the test sessions
  • D. It should be very elaborate and at least 10 pages

Answer: B

Explanation:
A usability test plan is a foundational document created before conducting usability testing. It outlines the objectives, scope, methodology, participants, tasks, and schedule for the testing activities. One of its essential components is the schedule, which details when and how test sessions will occur to ensure proper resource allocation and time management. Including a schedule helps coordinate between test moderators, participants, observers, and stakeholders, making the testing process organized and efficient.
While briefing instructions (Option B) may be related to the usability test, they are typically documented separately or included in participant materials rather than the formal test plan itself. The test plan should be concise and focused; it need not be overly elaborate or lengthy (Option C), as clarity and usability of the plan are more important than length. The results of the test sessions (Option D) are not included in the test plan but rather compiled afterward in a test report or analysis document.
Therefore, the correct statement is that the usability test plan contains a schedule, ensuring a structured timeline for the usability testing activities.
References:
Usability.gov, Usability Testing Plan Template
Nielsen Norman Group, Usability Test Planning
ISO 9241-210:2019 Ergonomics of human-system interaction - Usability testing process


NEW QUESTION # 34
A "usability requirement" is:

  • A. A requirement needed to define the size of a mobile phone used in a usability test
  • B. A requirement on the usability of a component or system
  • C. A requirement needed for a usability tester
  • D. A requirement how to conduct a usability test

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 # 35
Which of the following statements best describe Rapid Iterative Testing and Evaluation?

  • A. Testing is quantitative
  • B. Testing focuses on instant redesigns and confirming made changes
  • C. Testing happens on a regular basis, e.g. each Monday
  • 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 # 36
Which of the following is the highest WCAG conformance level, promising the most accessible content?

  • A. Double A (AA)
  • B. Triple A (AAA)
  • C. Quadruple A (AAAA)
  • D. Single A (A)

Answer: B

Explanation:
The Web Content Accessibility Guidelines (WCAG) define three levels of conformance for web content accessibility:
Level A (Single A) is the minimum level of compliance.
Level AA (Double A) is the standard recommended for most websites, balancing accessibility and design.
Level AAA (Triple A) is the highest and most comprehensive level of accessibility, covering the widest range of needs.
There is no such level as "Quadruple A (AAAA)," making option D invalid.
Thus, WCAG Triple A (AAA) promises the most accessible content, even though it may not always be practically achievable for all types of content.
References:
W3C: WCAG 2.1 Conformance Requirements
ISO/IEC 40500:2012 (WCAG 2.0)
W3C: How to Meet WCAG
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NEW QUESTION # 37
A "usability test participant" ...

  • A. ... can be the organizer of a usability test.
  • B. ... helps to set up the system used for the 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 # 38
Which of the following is a key activity in a usability test session?

  • A. Extract usability findings and recommendations
  • B. Moderate the usability test
  • C. Test the set up and modify the test script if needed
  • D. Talk to the participant during the completion of a task

Answer: B

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 # 39
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ISTQB CT-UT Exam Syllabus Topics:

TopicDetails
Topic 1
  • Risks in Usability, User Experience and Accessibility: This domain assesses the ability of Risk Analysts to identify and analyze common risks that can affect usability, user experience, and accessibility. It differentiates between product risks—such as users being unable to use a product effectively—and project risks, including lack of expertise or insufficient usability evaluation processes. Understanding these risks helps in planning effective usability testing and evaluation.
Topic 2
  • Selecting Appropriate Methods: This domain helps Test Managers make decisions on which usability evaluation methods to apply depending on project context, resources, and maturity. It discusses criteria for selecting usability, user experience, and accessibility evaluation methods suited to different stages of development and organizational needs, including agile development scenarios.
Topic 3
  • Usability Reviews: This domain evaluates the skills of Usability Testers in conducting reviews of software interfaces without user involvement. It differentiates informal reviews from expert reviews and introduces heuristic evaluation as a structured method. The section describes step-by-step approaches to preparing for and conducting reviews, emphasizing the importance of consensus and clear communication of findings.
Topic 4
  • Usability Testing: This section measures the practical knowledge of Usability Testers in planning, conducting, analyzing, and reporting formal usability test sessions with users. It outlines test preparation activities including writing test plans, test scripts, and tasks, as well as considerations for test locations and pilot sessions. It explains how to moderate sessions, analyze findings, classify problems by severity, and communicate results effectively to stakeholders.

 

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