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NEW QUESTION # 72
Which of the following statements about test-driven development (TDD) and behavior-driven development (BDD) is true?
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
FromCTFL-AT Syllabus v4.0, Section 3.3Behavior-Driven Development, and 3.2Test-Driven Development:
"TDD focuses on writing unit tests that guide the implementation of code."
"BDD focuses on writing scenarios that describe the behavior of the software, often using a language that stakeholders can understand." Thus,Option Bis accurate - TDD targetscode implementation, BDD targetsbehavioral expectations.
* Option Ais incorrect -TDD is at unit level, whileBDD is at the acceptance level.
* Option Cis false -BDD is more readable and accessiblefor non-technical stakeholders.
* Option Dconfuses BDD withuser story formats; BDD usesGiven-When-Then, not the "As a... I want..." template.
References:
CTFL-AT Syllabus v4.0, Sections 3.2 and 3.3
Learning Objective (K2) - Differentiate TDD and BDD practices
NEW QUESTION # 73
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?
Answer: C
Explanation:
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 # 74
Which ONE of the following is an example of a typical "Business-oriented work product"?
Answer: A
NEW QUESTION # 75
What is the definition of agile software development?
Answer: A
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 # 76
Consider the estimation of a given user story performed separately by two different teams (Team A and Team B) using the Planning Poker technique. Both teams consist of five members and use a deck of cards (0, 1, 2, 3, 5, 8, 13, 20).
Team A quickly decides on an estimate of8 story pointsafter four rounds, withno discussionsbetween rounds.
Team B arrives at3 story pointsafter three rounds, withdiscussionsbetween the lowest and highest estimators after each round.
Which of the following statements would you expect most likely to be true in this scenario?
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
FromCTFL-AT Syllabus v4.0, Section 2.2Release and Iteration Planning, it describes Planning Poker as:
"Planning Poker involves group discussion, especially from the highest and lowest estimators, to ensure that different perspectives and assumptions are aligned, which leads to more accurate and shared understanding of the effort involved." Thus,Option Cis correct - Team B usesdiscussion-based estimation, which is a corebenefitof Planning Poker.
* Option Ais speculative - we cannot know the actual effort difference.
* Option Bis incorrect - convergence without discussion may indicatelack of engagement or pressure to agree.
* Option Dis false - Planning Poker isnot based on averaging, but onconsensus.
References:
CTFL-AT Syllabus v4.0, Section 2.2
Learning Objective (K2) - Understand the purpose and benefit of Planning Poker
NEW QUESTION # 77
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