How Many Questions Of CTFL-AT Study Guides

NEW QUESTION 1
Which of the following allows a developer to define accurate unit tests focused on business needs?

• A. Design-Driven Development
• B. Behavior-Driven Development
• C. Test-Driven Development
• D. Acceptance Test-Driven Development

Answer: B

Explanation:
Behavior-Driven Development (BDD) is a software development approach that allows a developer to define accurate unit tests focused on business needs. BDD uses a common language that is understandable by both technical and non-technical stakeholders, such as Given-When-Then scenarios.BDD helps to align the development and testing activities with the customer expectations and business goals . References:
✑ : ISTQB® Foundation Level Agile Tester Syllabus, Version 2014, Section 2.2.2
✑ : ASTQB Agile Tester Certification Resources, Agile Testing Foundations, Chapter 3, Section 3.2.2

NEW QUESTION 2
Why is regression of software a high risk in agile projects?

• A. Test-driven development means that existing functionality is not considered.
• B. Test automation can cause regression of software in the test environment.
• C. Regression is built into software as a safeguard against unexpected failures.
• D. There is code churn due to change in business needs over several sprints.

Answer: D

Explanation:
Regression of software is the risk that a change in one part of the software causes a defect in another part of the software that was previously working correctly. Regression of software is a high risk in agile projects because there is code churn due to change in business needs over several sprints. Code churn is the amount of code that is added, modified, or deleted in a software project over time. Code churn can indicate the volatility and complexity of the software, and the frequency and magnitude of the changes. In agile projects, code churn can be high because the business needs and the user requirements can change rapidly and frequently over several sprints, which are short iterations of development and testing. This means that the software is constantly evolving and adapting to the changing needs, and that the existing functionality and quality may be affected by the new or modified code. Therefore, regression of software is a high risk in agile projects, and it requires effective testing strategies and techniques to prevent, detect, and fix the regression defects. References: ISTQB® Foundation Level Agile Tester Syllabus1, Section 2.3.2, page 17; ISTQB® Glossary of Testing Terms2, version 4.0, pages 36 and 55

NEW QUESTION 3
Which of the following statements about the Planning poker test estimate technique are CORRECT?
1) Planning poker is a consensus based technique using a deck of cards.
2) A low test estimate usually means the story should be broken down into multiple smaller stories.
3) A high test estimate usually means the story should be broken down into multiple smaller stories.
4) One poker round is played and then consensus has to be reached.
5) The risk level of each backlog item should be decided before the poker session.

• A. 1, 3, 5
• B. 1, 2, 3
• C. 2, 3, 4
• D. 1, 2, 4

Answer: A

Explanation:
Planning poker is a consensus-based technique for agile estimation, using a deck of cards with predefined numerical values, usually based on the Fibonacci sequence or a modified version12. Therefore, statement 1 is correct. A high test estimate usually means that the user story or task is too complex, ambiguous, or risky, and should be broken down into multiple smaller stories that are easier to understand and estimate13. Therefore, statement 3 is correct. The risk level of each backlog item should be decided before the poker session, as it can affect the estimation process and the prioritization of the work14. Therefore, statement 5 is correct. Statement 2 is incorrect, as a low test estimate usually means that the user story or task is simple, clear, and well-defined, and does not need to be broken down further13. Statement 4 is incorrect, as planning poker can involve multiple rounds of estimation, reveal, and discussion, until the team reaches a consensus or agrees to defer the item12. References: 1: ISTQB® Foundation Level Agile Tester Syllabus, Section 3.3.1, Test Automation1; 2: ASTQB Agile Tester Certification Resources, Section 3.3.1, Test Automation2; 3: Planning Poker: An Agile Estimating and Planning Technique3; 4: Planning poker: The all-in strategy for Agile estimation - Asana4

NEW QUESTION 4
Consider an online application that allows registered users to pay the annual car tax based on the vehicle’s engine power in kW. Given the following user story:
"As a customer I need the online application to calculate the annual car tax amount that I need to pay for my car:
* If the power of the vehicle is less than 20 kW, then the annual car tax is free
* If the power of the vehicle is more or equal than 20 kW but less or equal than 150 kW, then the annual car tax is 250 Euros
* If the power of the vehicle is more than 150 kW, then the annual car tax is 750 Euros" What is the MOST suitable use of a black-box test design technique for this user story?

• A. Decision table testin
• B. Test the following conditions:Conditions=registered user logged in; inserted power of the vehicle=20kW; Action=Car tax paid
• C. State transition testin
• D. Test the transitions between the following states: logging in, inserting the power of the vehicle, making payment, logging ou
• E. Equivalence partitionin
• F. Test the annual car tax value for the following partitions: [power of the vehicle<20 kW ; 20 kW power of the vehicles150 kW; power of the vehicle>150 kW]
• G. Use case testing Test the following use case (Actor=registered user): Pre-condition=registered user logged in Scenario=registered user inserts the power of the vehicle, making payment and logs out Post-condition=car tax paid and registered user logged out

Answer: C

Explanation:
Equivalence partitioning is a black-box test design technique that divides the input domain of a system into classes of data from which test cases can be derived. The idea is that if a system works correctly for a representative value from an equivalence class, it will work correctly for all values from that class, and vice versa. Equivalence partitioning reduces the number of test cases by eliminating redundant ones. For the given user story, equivalence partitioning is the most suitable technique because it can test the different outcomes of the annual car tax calculation based on the power of the vehicle, which is the main input for the system. By testing one value from each partition, the tester can verify the functionality of the system and detect any errors in the calculation logic. The other techniques are not as suitable because they do not focus on the inputdomain of the system, but rather on the conditions, transitions, or scenarios that are not directly related to the user story. References:
✑ : ISTQB® Foundation Level Agile Tester Syllabus, Version 2014, Section 2.2.2
✑ : ASTQB Agile Tester Certification Resources, Agile Testing Foundations, Chapter 3, Section 3.2.2
✑ : 3

NEW QUESTION 5
What is the definition of agile software development?

• A. Testing carried out informally where no formal test preparation or execution takes place, no recognized test design technique is used and there are no expectations for results.
• B. A group of software development methodologies based on iterative incremental development with self-organizing cross-functional teams who cooperate to define requirements and to implement the solution.
• C. A framework to describe the software development lifecycle activities from requirements specification to maintenance where test planning of the various test levels is done as soon as the test basis is ready
• D. A way of developing software where the test cases are developed, and often automated, before the software under test is developed.

Answer: B

Explanation:
Agile software development is a term that encompasses a group of software development methodologies that are based on iterative incremental development, where requirements and solutions evolve through collaboration between self-organizing cross- functional teams. Agile methods promote adaptive planning, evolutionary development and delivery, a time-boxed iterative approach, and encourage rapid and flexible response to change. Some examples of agile methods are Scrum, Extreme Programming (XP),
Kanban, and Lean Software Development. References:
✑ : ISTQB® Foundation Level Agile Tester Syllabus, Version 2014, Section 1.1.1
✑ : ASTQB Agile Tester Certification Resources, Agile Testing Foundations, Chapter 1, Section 1.1.1

NEW QUESTION 6
You are working in a team preparing a bank loan application. Your task is the preparation of acceptance tests for the following user story:
"IF a customer needs a loan for less than 50,000 Euros and they have made repayments regularly (without any delay) and the customer's monthly income is more than 3000 Euros for the last year, THEN the bank will accept the loan request; in other cases, the bank will not accept the request. A customer assistant is responsible for preparing data for approval but the approval is done by the bank manager."
Which of the following test cases can be treated as acceptance test criteria for the above user story?
1) As a customer assistant I can log in to the system and check the history of the customer account for the last year.
2) As a customer assistant I can log in to the system and check the history of the customer debts and repayments.
3) As a customer assistant I can log in to the system and change my password.
4) As a bank manager I can log in to the system and receive the information of all requests waiting for approval.
5) As a bank manager I can log in to the system and decide whether to approve a loan for a customer.
6) As a bank manager I can log in to the system within 10 seconds.

• A. Acceptance test criteria are 1, 2, 3 and 6
• B. Acceptance test criteria are 1, 3, 4 and 5
• C. Acceptance test criteria are 2, 4, 5 and 6
• D. Acceptance test criteria are 1, 2, 4 and 5

Answer: D

Explanation:
Acceptance test criteria are the conditions that a user story must satisfy to be accepted by the customer or the stakeholder. They are usually derived from the user story and its acceptance scenarios, and they should cover the functional and non-functional requirements of the user story. Acceptance test criteria should be clear, concise, testable, and agreed upon by the team and the customer or the stakeholder.
In this case, the user story describes the business rule for approving a loan request based on the customer’s income, repayment history, and loan amount. The user story also specifies the roles of the customer assistant and the bank manager in the process. Therefore, the acceptance test criteria should verify that the user story is implemented correctly and that the system behaves as expected for different scenarios and inputs.
The following test cases can be treated as acceptance test criteria for the above user story:
✑ As a customer assistant I can log in to the system and check the history of the customer account for the last year. This test case verifies that the customer assistant can access the system and view the customer’s income information, which is one of the factors for approving the loan request.
✑ As a customer assistant I can log in to the system and check the history of the customer debts and repayments. This test case verifies that the customer assistant can access the system and view the customer’s repayment history, which is another factor for approving the loan request.
✑ As a bank manager I can log in to the system and receive the information of all requests waiting for approval. This test case verifies that the bank manager can access the system and see the list of loan requests that have been prepared by the customer assistant, and that the system provides the necessary information for each request.
✑ As a bank manager I can log in to the system and decide whether to approve a loan for a customer. This test case verifies that the bank manager can access the system and perform the approval action for a loan request, and that the system applies the business rule correctly and updates the status of the request accordingly.
The following test cases cannot be treated as acceptance test criteria for the above user story:
✑ As a customer assistant I can log in to the system and change my password. This
test case is not related to the user story, as it does not verify any of the functional or non-functional requirements of the user story. It is a generic test case that applies to any user of the system, not specific to the customer assistant role or the loan approval process.
✑ As a bank manager I can log in to the system within 10 seconds. This test case is
not related to the user story, as it does not verify any of the functional or non-
functional requirements of the user story. It is a performance test case that applies to any user of the system, not specific to the bank manager role or the loan approval process.
References: ISTQB® Foundation Level Agile Tester Syllabus1, Section 2.3.1, pages 15-16; ISTQB® Glossary of Testing Terms2, version 4.0, pages 2 and 3.

NEW QUESTION 7
Which of the following is NOT a typical task performed by the tester within an Agile team?

• A. Ensuring all project status meetings are held according to the plan.
• B. Ensuring the appropriate testing tasks are scheduled during iteration planning.
• C. Suggesting improvements in team retrospectives.
• D. Working with business stakeholders to clarify requirements.

Answer: A

Explanation:
The tester within an Agile team is not responsible for ensuring all project status meetings are held according to the plan. This is typically a task for the Scrum Master, who facilitates the meetings and ensures that the team follows the Agile principles and practices. The tester within an Agile team is responsible for ensuring the appropriate testing tasks are scheduled during iteration planning, suggesting improvements in team retrospectives, and working with business stakeholders to clarify requirements. These are all tasks that contribute to the quality of the software and the testing process, as well as the collaboration and communication within the team and with the customers. References:
ISTQB Foundation Level Agile Tester Syllabus, Section 2.3.1, page 171; ISTQB Foundation Level Agile Tester Sample Exam Questions, Question 2.3.1-1, page 82

NEW QUESTION 8
Which of the following sentences related to Risk-based testing is CORRECT?

• A. Risk-based testing fits well in Agile development processes, as risks are analyzed twice- during release and iteration planning.
• B. Risk-based testing does not fit well in Agile development processes, as short iterations mandate short test times.
• C. Risk-based testing does not fit in Agile development processes, as each iteration focuses on limited parts of the product.
• D. Risk-based testing fits well in Agile development processes, as risks are easy to identify when the work is divided into user stories.

Answer: D

Explanation:
Risk-based testing fits well in Agile development processes, as risks are easy to identify when the work is divided into user stories. User stories are short descriptions of features or functionalities that are valuable to the customers or users. They help to define the scope and priority of the work in each iteration. By breaking down the work into user stories, the Agile team can identify the potential risks associated with each story, such as technical complexity, business criticality, or user feedback. The team can then prioritize the testing effort based on the risk level of each story, ensuring that the most important and risky features are tested first and thoroughly. Risk-based testing also helps to optimize the testing time and resources, as the team can focus on testing the most relevant aspects of the software, rather than testing everything equally. References: ISTQB Foundation Level Agile Tester Syllabus, Section 2.3.2, page 181; ISTQB Foundation Level Agile Tester Sample Exam Questions, Question 2.3.2-1, page 92

NEW QUESTION 9
Which of the following is the BEST way for a test team to keep its independence when working in an Agile development environment?

• A. Share the Test Strategy with the Agile development team, but not the details of the Test Cases.
• B. Locate the team that develops the test automation framework in a different location to the Agile development team.
• C. Assign testers to be members of the Agile team, but ensure the testers report to a different manager than the developers.
• D. Co-locate only some of the testers with the Agile development team, while the rest of the testers are in a different location.

Answer: C

Explanation:
According to the ISTQB Tester Foundation Level Agile Tester syllabus, one of the key principles of agile testing is that testers are integrated into the agile team and work closely with developers and other stakeholders. However, this does not mean that testers lose their independence or objectivity. Testers should still be able to provide an unbiased view of the quality of the software and challenge the assumptions and decisions made by the team. Therefore, option C is the best way for a test team to keep its independence when working in an agile development environment, as it allows testers to be part of the agile team, but also report to a different manager than the developers, who can support their professional development and ensure their independence. Option A is not a good way to keep independence, as it limits the transparency and collaboration between testers and developers, which are essential for agile testing. Option B is also not a good way to keep independence, as it creates a physical and organizational barrier between the test automation team and the agile development team, which can hinder communication and feedback. Option D is also not a good way to keep independence, as it creates an inconsistency and imbalance between the testers who are co-located with the agile development team and those who are not, which can affect the quality and efficiency of the testing process. References: ISTQB Tester Foundation Level Agile Tester syllabus, section 1.2.1, page 91; ISTQB Tester Foundation Level Agile Tester syllabus, section 1.2.2, page 101; ISTQB Tester Foundation Level Agile Tester syllabus, section 2.1.1, page 141; ISTQB Tester Foundation Level Agile Tester syllabus, section 2.2.1, page 161; ISTQB Tester Foundation Level Agile Tester syllabus, section 2.2.2, page 171.

NEW QUESTION 10
User Story: As a user I want to be able to calculate tax percentage based on amount of income.
What is the best black box test design technique for verifying the accuracy of this user story?

• A. Statement testing - test all statements in income calculation.
• B. User story testing - test that the user can enter an income amount and get a result.
• C. State transition testing - test all states of income entry.
• D. Equivalence partitioning - test with low, medium and high income.

Answer: D

Explanation:
The best black box test design technique for verifying the accuracy of this user story is equivalence partitioning. Equivalence partitioning is a technique that divides the input domain of a system into classes or groups that are expected to behave similarly. By testing one value from each class, the tester can reduce the number of test cases while still achieving good coverage. In this case, the input domainof the system is the amount of income, which can be divided into classes based on the tax percentage applied to different income ranges. For example, if the tax percentage is 10% for income below 10,000, 20% for income between 10,000 and 20,000, and 30% for income above 20,000, then the equivalence classes are: low income (<10,000), medium income (10,000-20,000), and high income (>20,000). By testing one value from each class, such as 5,000, 15,000, and 25,000, the tester can verify that the system calculates the correct tax percentage for each income range. This technique is more efficient and effective than testing all possible values of income, or testing only one value of income, or testing the states of income entry, or testing the statements in income calculation. References: ISTQB Foundation Level Agile Tester Syllabus1, Section 2.3.1, page 19; ISTQB Foundation Level Agile Tester Extension Sample Exam Questions2, Question 5, page 6.

NEW QUESTION 11
You have been asked to explain to your client how to define acceptance criteria that are fully testable. Which of the following is the BEST EXAMPLE for testable acceptance criteria?

• A. The “ID” field must accept input value of a length between 2 and 10 characters.
• B. The interface to External System shall be specified.
• C. Action “Reopen” must be available only for a user with a specific authorization level.
• D. The program's icon should be clear and attractive.

Answer: A

Explanation:
According to the ISTQB Tester Foundation Level Agile Tester syllabus, acceptance criteria are a set of conditions that a user story must satisfy to be accepted by the customer or stakeholder. Acceptance criteria should be testable, meaning that they can be verified by objective measurements or observations. Testable acceptance criteria should be clear, unambiguous, complete, and consistent. Therefore, option A is the best example for testable acceptance criteria, as it specifies a clear and measurable condition for the input value of the ID field. Option B is not a good example for testable acceptance criteria, as it is vague and does not define any specific condition or expectation for the interface to External System. Option C is not a good example for testable acceptance criteria, as it is incomplete and does not specify what the specific authorization level is or how it is determined. Option D is not a good example for testable acceptance criteria, as it is subjective and not measurable. What is clear and attractive for one user may not be for another. References: ISTQB Tester Foundation Level Agile Tester syllabus, section 1.1.1, page 7; ISTQB Tester Foundation Level Agile Tester syllabus, section 1.1.2, page 8; ISTQB Tester Foundation Level Agile Tester syllabus, section 3.1.1, page 23; ISTQB Tester Foundation Level Agile Tester syllabus, section 3.1.2, page 24. 3of30

NEW QUESTION 12
Which one of the following is a testable acceptance criterion?

• A. The solution shall support business processes.
• B. The system shall be easy to use.
• C. The response time to confirm a customer submission must not exceed 5 seconds.
• D. The tools for testing are tested before use and are meeting the requirements.

Answer: C

Explanation:
A testable acceptance criterion is a condition that can be verified or measured objectively by the tester, customer, or stakeholder. It should be specific, measurable, achievable, relevant, and time-bound (SMART). A testable acceptance criterion should also be written from the user’s perspective, achievable within the sprint, and written before development begins1.
Among the four options, only option C meets these criteria. It is specific (the response time to confirm a customer submission), measurable (must not exceed 5 seconds), achievable (within the technical and business constraints), relevant (to the user’s needs and expectations), and time-bound (must be met in every sprint). It is also written from the user’s perspective, testable (by measuring the response time), and written before development (as part of the user story definition).
Option A is not testable because it is vague and subjective. What does it mean to support business processes? How can this be verified or measured? Option B is also not testable because it is subjective and ambiguous. What does it mean to be easy to use? How can this be verified or measured? Option D is not testable because it is not written from the user’s perspective. It is an internal quality criterion for the testing team, not an acceptance criterion for the product or feature.
References: ISTQB Foundation Level Agile Tester Syllabus, Section 2.3.2, page 182; ISTQB Foundation Level Agile Tester Sample Exam Questions, Question 2.3.2-2, page 93

NEW QUESTION 13
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