EXAMCOLLECTION CTFL_SYLL_4.0 VCE | CTFL_SYLL_4.0 REAL TORRENT

Examcollection CTFL_Syll_4.0 Vce | CTFL_Syll_4.0 Real Torrent

Examcollection CTFL_Syll_4.0 Vce | CTFL_Syll_4.0 Real Torrent

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ISQI ISTQB Certified Tester Foundation Level (CTFL) v4.0 Sample Questions (Q12-Q17):

NEW QUESTION # 12
Consider an estimation session where a six-member Agile team (Memb1, ... , Memb6) is performing a planning poker session to estimate a user story (in story points). Team members are using a set of cards with the following values: 1, 2, 3, 5, 8, 13, 21. Below is the outcome produced by the first round of estimation for this session:

Which of the following answers best describes how the estimation session should proceed?

  • A. Memb4 and Memb6, which have produced the most pessimistic and the most optimistic estimates respectively, should explain the reasons of their choices to stimulate a discussion between all team members before to proceed to another round of estimation
  • B. The final estimate of the user story in story points is determined as the arithmetic mean of the most optimistic estimate (chosen by Memb6) and the most pessimistic estimate (chosen by Memb4) during this first round, without the need to perform further rounds of estimation
  • C. The final estimate of the user story in story points is determined as the arithmetic mean of all the estimates made by the team members during this first round, without the need to perform further rounds of estimation
  • D. The final estimation of the user story in story points is determined as the most frequent estimate value among those selected by the team members (in this case 3 story points chosen by Memb1, Memb2, Memb3, Memb5) during this first round, without the need to perform further rounds of estimation

Answer: A

Explanation:
In Agile estimation sessions, particularly during Planning Poker, the goal is to reach a consensus on the effort required for a user story. The process encourages discussion and collaboration among team members to understand the story's requirements and complexities fully. Here's a breakdown of the options and why D is the correct choice:
Option A:Calculating the arithmetic mean of all estimates.
* This method is straightforward but does not facilitate team discussion or consensus-building. It merely averages out the estimates without addressing the reasons behind the varying estimates. Thus, important insights and understanding of the task complexity might be missed.
Option B:Selecting the most frequent estimate value.
* While this approach acknowledges the majority's opinion, it ignores the minority views, which might highlight significant aspects of the story that need consideration. It doesn't ensure that all perspectives are considered and discussed.
Option C:Calculating the mean of the most optimistic and pessimistic estimates.
* This approach considers the extremes but again lacks the team discussion and consensus aspect. It also assumes that the extreme values alone can balance out the estimate, which might not always capture the true complexity or simplicity of the task.
Option D:Discussing the most pessimistic and optimistic estimates.
* This approach fosters team collaboration and understanding. Memb4 and Memb6 explain their reasoning for the highest and lowest estimates, respectively, which can reveal different perspectives on the task's complexity. This discussion helps the team align their understanding and often leads to a more accurate and agreed-upon estimate in subsequent rounds.
In conclusion, the main goal of Agile estimation techniques like Planning Poker is to encourage team communication and collaboration to ensure that all aspects of the user story are considered. Option D best aligns with this goal by promoting discussion and consensus.


NEW QUESTION # 13
Which of the following statements is CORRECT about White-box testing?

  • A. White-box testing helps find defects even when specifications are vague because it takes into account the code.
  • B. White-box testing helps find defects because it focuses on defects rather than failures
  • C. White-box testing helps find defects because it provides for requirements based coverage
  • D. White-box testing helps find defects because they can be used to measure statement coverage

Answer: D

Explanation:
White-box testing, also known as structural testing, involves testing the internal structures or workings of an application, as opposed to its functionality (which is tested by black-box testing). The correct statement about white-box testing is that it helps find defects by measuring aspects such as statement coverage.
* Statement Coverage: White-box testing techniques like statement coverage measure whether each statement in the code has been executed at least once. This helps ensure that all parts of the code are tested and can reveal defects in areas that might not be reached by black-box testing alone.
Other statements are less accurate in the context of white-box testing:
* Specifications being vague: White-box testing is code-focused, not requirement-focused. If specifications are vague, it affects both white-box and black-box testing. The main advantage of white-box testing is that it allows testers to create tests based on the code's structure and logic.
* Requirements-based coverage: This is typically associated with black-box testing, which derives tests from specifications and requirements. White-box testing, on the other hand, derives tests from the code itself.
* Focus on defects rather than failures: Both white-box and black-box testing aim to identify defects, but white-box testing does this through code coverage and examining the code paths directly. It does not focus exclusively on defects rather than failures; it is just another method to identify potential issues.


NEW QUESTION # 14
After being in operation for many years, a document management system must be decommissioned as it has reached its end of life. This system will not be replaced by any other new system. A legal obligation provides that all documents within the system must be kept for at least 20 years in a state archive.
Which of the following statements about maintenance testing for decommissioning of this system is true?

  • A. No maintenance testing is required as this system will not be replaced
  • B. Regression testing is required as part of maintenance testing
  • C. Data migration testing is required as part of maintenance testing
  • D. Confirmation testing is required as part of maintenance testing

Answer: C

Explanation:
When a document management system is decommissioned, maintenance testing must include data migration testing to ensure that all documents are correctly transferred to a state archive, meeting legal requirements for long-term storage. This process verifies that data integrity is maintained during migration.
References:
* ISTQB CTFL Syllabus 4.0, Chapter 2.3, page 29: Maintenance Testing and Data Migration


NEW QUESTION # 15
Which of the following statements refers to good testing practice to be applied regardless of the chosen software development model?

  • A. Involvement of testers in work product reviews should occur as early as possible to take advantage of the early testing principle
  • B. Tests should be written in executable format before the code is written and should act as executable specifications that drive coding
  • C. Test objectives should be the same for all test levels, although the number of tests designed at various levels can vary significantly
  • D. Test levels should be defined such that the exit criteria of one level are part of the entry criteria for the next level

Answer: A

Explanation:
The statement that refers to good testing practice to be applied regardless of the chosen software development model is option D, which says that involvement of testers in work product reviews should occur as early as possible to take advantage of the early testing principle. Work product reviews are static testing techniques, in which the work products of the software development process, such as the requirements, the design, the code, the test cases, etc., are examined by one or more reviewers, with or without the author, to identify defects, violations, or improvements. Involvement of testers in work product reviews can provide various benefits for the testing process, such as improving the test quality, the test efficiency, and the test communication. The early testing principle states that testing activities should start as early as possible in the software development lifecycle, and should be performed iteratively and continuously throughout the lifecycle. Applying the early testing principle can help to prevent, detect, and remove defects at an early stage, when they are easier, cheaper, and faster to fix, as well as to reduce the risk, the cost, and the time of the testing process. The other options are not good testing practices to be applied regardless of the chosen software development model, but rather specific testing practices that may or may not be applicable or beneficial for testing, depending on the context and the objectives of the testing activities, such as:
* Tests should be written in executable format before the code is written and should act as executable specifications that drive coding: This is a specific testing practice that is associated with test-driven development, which is an approach to software development and testing, in which the developers write automated unit tests before writing the source code, and then refactor the code until the tests pass.
Test-driven development can help to improve the quality, the design, and the maintainability of the code, as well as to provide fast feedback and guidance for the developers. However, test-driven development is not a good testing practice to be applied regardless of the chosen software development model, as it may not be feasible, suitable, or effective for testing in some contexts or situations, such as when the requirements are unclear, unstable, or complex, when the test automation tools or skills are not available or adequate, when the testing objectives or levels are not aligned with the unit testing, etc.
* Test levels should be defined such that the exit criteria of one level are part of the entry criteria for the next level: This is a specific testing practice that is associated with sequential software development models, such as the waterfall model, the V-model, or the W-model, in which the software development and testing activities are performed in a linear and sequential order, with well-defined phases, deliverables, and dependencies. Test levels are the stages of testing that correspond to the levels of integration of the software system, such as component testing, integration testing, system testing, and acceptance testing. Test levels should have clear and measurable entry criteria and exit criteria, which are the conditions that must be met before starting or finishing a test level. In sequential software development models, the exit criteria of one test level are usually part of the entry criteria for the next test level, to ensure that the software system is ready and stable for the next level of testing. However, this is not a good testing practice to be applied regardless of the chosen software development model, as it may not be relevant, flexible, or efficient for testing in some contexts or situations, such as when the software development and testing activities are performed in an iterative and incremental order, with frequent changes, feedback, and adaptations, as in agile software development models, such as Scrum, Kanban, or XP, when the test levels are not clearly defined or distinguished, or when the test levels are performed in parallel or concurrently, etc.
* Test objectives should be the same for all test levels, although the number of tests designed at various levels can vary significantly: This is a specific testing practice that is associated with uniform software development models, such as the spiral model, the incremental model, or the prototyping model, in which the software development and testing activities are performed in a cyclical and repetitive manner, with similar phases, deliverables, and processes. Test objectives are the goals or the purposes of testing, which can vary depending on the test level, the test type, the test technique, the test environment, the test stakeholder, etc. Test objectives can be defined in terms of the test basis, the test coverage, the test quality, the test risk, the test cost, the test time, etc. Test objectives should be specific, measurable, achievable, relevant, and time-bound, and they should be aligned with the project objectives and the quality characteristics. In uniform software development models, the test objectives may be the same for all test levels, as the testing process is repeated for each cycle or iteration, with similar focus, scope, and perspective of testing. However, this is not a good testing practice to be applied regardless of the chosen software development model, as it may not be appropriate, realistic, or effective for testing in some contexts or situations, such as when the software development and testing activities are performed in a hierarchical and modular manner, with different phases, deliverables, and dependencies, as in sequential software development models, such as the waterfall model, the V-model, or the W-model, when the test objectives vary according to the test levels, such as component testing, integration testing, system testing, and acceptance testing, or when the test objectives change according to the feedback, the
* learning, or the adaptation of the testing process, as in agile software development models, such as Scrum, Kanban, or XP, etc. References: ISTQB Certified Tester Foundation Level (CTFL) v4.0 sources and documents:
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 1.1.1, Testing and the Software Development Lifecycle1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 1.2.1, Testing Principles1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 1.2.2, Testing Policies, Strategies, and Test Approaches1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 1.3.1, Testing in Software Development Lifecycles1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 2.1.1, Test Planning1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 2.1.2, Test Monitoring and Control1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 2.1.3, Test Analysis and Design1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 2.1.4, Test Implementation1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 2.1.5, Test Execution1
* ISTQB Certified Tester Foundation Level Syllabus v4.0, Chapter 2.1.6, Test Closure1
* ISTQB Glossary of Testing Terms v4.0, Work Product Review, Static Testing, Early Testing, Test-driven Development, Test Level, Entry Criterion, Exit Criterion, Test Objective, Test Basis, Test Coverage, Test Quality, Test Risk, Test Cost, Test Time2


NEW QUESTION # 16
Which of the following issues cannot be identified by static analysis tools?

  • A. Very low MTBF (Mean Time Between failure)
  • B. Potentially endless loops
  • C. Security vulnerabilities
  • D. Referencing a variable with an undefined value

Answer: A

Explanation:
Static analysis tools are software tools that examine the source code of a program without executing it. They can detect various types of issues, such as syntax errors, coding standards violations, security vulnerabilities, and potential bugs12. However, static analysis tools cannot identify issues that depend on the runtime behavior or performance of the program, such as very low MTBF (Mean Time Between failure)3. MTBF is a measure of the reliability of a system or component. It is calculated by dividing the total operating time by the number of failures. MTBF reflects how often a system or component fails during its expected lifetime. Static analysis tools cannot measure MTBF because they do not run the program or observe its failures. MTBF can only be estimated by dynamic testing, which involves executing the program under various conditions and collecting data on its failures4. Therefore, very low MTBF is an issue that cannot be identified by static analysis tools. The other options, such as potentially endless loops, referencing a variable with an undefined value, and security vulnerabilities, are issues that can be identified by static analysis tools. Static analysis tools can detect potentially endless loops by analyzing the control flow and data flow of the program and checking for conditions that may never become false5. Static analysis tools can detect referencing a variable with an undefined value by checking the scope and initialization of variables and reporting any use of uninitialized variables6. Static analysis tools can detect security vulnerabilities by checking for common patterns of insecure code, such as buffer overflows, SQL injections, cross-site scripting, and weak encryption. Reference = What Is Static Analysis? Static Code Analysis Tools - Perforce Software, How Static Code Analysis Works | Perforce, Static Code Analysis: Techniques, Top 5 Benefits & 3 Challenges, What is MTBF? Mean Time Between Failures Explained | Perforce, Static analysis tools - Software Testing MCQs - CareerRide, ISTQB_Chapter3 | Quizizz, [Static Code Analysis for Security Vulnerabilities | Perforce].


NEW QUESTION # 17
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