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Exam Code: CTFL v4.0

Exam Name Certified Tester Foundation Level (CTFL) v4.0

Certification Provider: ISTQB

Corresponding Certification: CTFL

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ISTQB CTFL v4.0 Practice Test 77

Question 760

In a fictional application-delivery project, the team reports: A scrum team estimates one very complex integration story using only development hours, then realizes testing and third-party environment setup consume most of the iteration. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Make readiness conditions visible in deployment and test scheduling.
  2. Define defect-related exit controls before testing starts.
  3. Include feature flags and build hashes in defect evidence.
  4. Review integration prerequisites during backlog refinement and estimate together.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Review integration prerequisites during backlog refinement and estimate together. It addresses the principle (Whole-team iteration estimates need account for testing activities and supporting work.) and can be assessed by: The estimate reflects actual completion effort including integration acceptance checks.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 5.1): An integration group begins formal testing while the authentication environment is unavailable and a critical database schema is still changing. The targeted safeguard for the current case is: Review integration prerequisites during backlog refinement and estimate together.

B:

This preventive step mitigates a different project risk (syllabus section 5.1): A release planner assumes completion of all planned tests is sufficient for exit, even when two unresolved critical payment defects remain. The targeted safeguard for the current case is: Review integration prerequisites during backlog refinement and estimate together.

C:

This preventive step mitigates a different project risk (syllabus section 5.4): A defect retest passes in a developer workspace but fails in QA, and the team assumes one tester must be wrong without comparing builds or feature flags. The targeted safeguard for the current case is: Review integration prerequisites during backlog refinement and estimate together.

Question 761

A tester is asked to evaluate the following situation: A delivery platform puts expensive UI automation at the bottom of its testing pyramid and has almost no fast component checks. Which testing activity or corrective action best addresses this situation?

  1. Use quadrants to categorize different testing purposes rather than impose a mandatory linear schedule.
  2. Apply agreed entry criteria for a stable build, dependencies, data and environment readiness.
  3. Prioritize emergency appointment scenarios based on product risk assessment.
  4. Rebalance towards many fast focused component tests, fewer integration tests and fewer slow end-to-end tests.

Explanation

Correct Answer

D:

The targeted action is: Rebalance towards many fast focused component tests, fewer integration tests and fewer slow end-to-end tests. It addresses the underlying software-testing principle: The test pyramid recommends proportionate layers to balance speed, feedback and confidence. The relevant confirming evidence is: Common logic failures are caught quickly while the limited UI suite validates key journeys.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 5.1, Test Planning): A tester uses the agile testing quadrants as a strict sequence of four release phases and refuses technical critique until business-facing tests finish. The present problem instead depends on: The test pyramid recommends proportionate layers to balance speed, feedback and confidence.

B:

This choice is a useful response to a different testing situation (section 5.1, Test Planning): An integration group begins formal testing while the authentication environment is unavailable and a critical database schema is still changing. The present problem instead depends on: The test pyramid recommends proportionate layers to balance speed, feedback and confidence.

C:

This choice is a useful response to a different testing situation (section 5.2, Risk Management): A medical booking application has high impact if emergency appointments are lost, and testers choose random low-priority features for their first execution batch. The present problem instead depends on: The test pyramid recommends proportionate layers to balance speed, feedback and confidence.

Question 762

A tester is asked to evaluate the following situation: A delivery platform puts expensive UI automation at the bottom of its testing pyramid and has almost no fast component checks. Which observation best verifies that the stated testing issue is addressed?

  1. A data-integrity test runs early despite low user-interface visibility.
  2. Common logic failures are caught quickly while the limited UI suite validates key journeys.
  3. The weighted estimate is 5.5 days with its formula and assumptions documented.
  4. One primary defect tracks the shared crash with separate supporting reproductions.

Explanation

Correct Answer

B:

This is the expected verification outcome: Common logic failures are caught quickly while the limited UI suite validates key journeys. It directly checks the corrective activity (Rebalance towards many fast focused component tests, fewer integration tests and fewer slow end-to-end tests.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A tester ranks cases solely by customer visibility and leaves a severe hidden data-integrity risk until the final day. It does not establish the required result for this case: Common logic failures are caught quickly while the limited UI suite validates key journeys.

C:

This result may validate another testing scenario: A project manager uses a three-point estimate optimistic 2 days, most likely 5 days, pessimistic 11 days, but reports a simple arithmetic mean without stating the chosen formula. It does not establish the required result for this case: Common logic failures are caught quickly while the limited UI suite validates key journeys.

D:

This result may validate another testing scenario: A support engineer creates duplicate tickets for one crash that occurs under multiple user accounts, consuming triage time and hiding its shared root condition. It does not establish the required result for this case: Common logic failures are caught quickly while the limited UI suite validates key journeys.

Question 763

A tester is asked to evaluate the following situation: A delivery platform puts expensive UI automation at the bottom of its testing pyramid and has almost no fast component checks. Which testing concept or underlying cause best explains the reported problem?

  1. Counting cases alone is an unreliable predictor of testing effort across unlike environments.
  2. Entry criteria help determine when an activity can start usefully without avoidable blocked effort.
  3. The test pyramid recommends proportionate layers to balance speed, feedback and confidence.
  4. Test monitoring depends on trustworthy execution evidence, not merely a tool-generated success label.

Explanation

Correct Answer

C:

The most relevant explanation is: The test pyramid recommends proportionate layers to balance speed, feedback and confidence. This describes why the original situation (A delivery platform puts expensive UI automation at the bottom of its testing pyramid and has almost no fast component checks.) merits the response: Rebalance towards many fast focused component tests, fewer integration tests and fewer slow end-to-end tests.

Incorrect Answers

A:

This principle could explain a different testing issue: A quality lead assumes the same count of test cases means identical effort across a simple API and a complex hardware integration system. The present case is better explained by: The test pyramid recommends proportionate layers to balance speed, feedback and confidence.

B:

This principle could explain a different testing issue: An integration group begins formal testing while the authentication environment is unavailable and a critical database schema is still changing. The present case is better explained by: The test pyramid recommends proportionate layers to balance speed, feedback and confidence.

D:

This principle could explain a different testing issue: A project tracks all test cases as passed but the execution log shows several scripts silently skipped all assertions during a framework upgrade. The present case is better explained by: The test pyramid recommends proportionate layers to balance speed, feedback and confidence.

Question 764

A tester is asked to evaluate the following situation: A delivery platform puts expensive UI automation at the bottom of its testing pyramid and has almost no fast component checks. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Review slow-suite bottlenecks and move suitable checks to lower levels.
  2. Include closure tasks and ownership in release schedules.
  3. Record assumptions and uncertainty in risk rankings.
  4. Review the test suite's execution cost, flakiness and level distribution.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Review the test suite's execution cost, flakiness and level distribution. It addresses the principle (The test pyramid recommends proportionate layers to balance speed, feedback and confidence.) and can be assessed by: Common logic failures are caught quickly while the limited UI suite validates key journeys.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 5.1): A release team has 500 end-to-end browser scripts but no fast feedback for a changed calculation function, causing long fault isolation. The targeted safeguard for the current case is: Review the test suite's execution cost, flakiness and level distribution.

B:

This preventive step mitigates a different project risk (syllabus section 5.1): A company finishes implementation early and cancels all planned test completion work, including cleanup and preservation of reusable fixtures. The targeted safeguard for the current case is: Review the test suite's execution cost, flakiness and level distribution.

C:

This preventive step mitigates a different project risk (syllabus section 5.2): An online marketplace risk analysis marks 'checkout service may go down' without estimating what conditions could trigger it or how severe the effect would be. The targeted safeguard for the current case is: Review the test suite's execution cost, flakiness and level distribution.

Question 765

A quality engineering exercise presents this condition: A tester uses the agile testing quadrants as a strict sequence of four release phases and refuses technical critique until business-facing tests finish. Which testing activity or corrective action best addresses this situation?

  1. Cross-check expert judgment with historical productivity or structured estimation techniques and assumptions.
  2. Use quadrants to categorize different testing purposes rather than impose a mandatory linear schedule.
  3. Evaluate exit conditions including unresolved defect severity and product risk before accepting the release.
  4. Use test control actions such as changing priorities, adding tests or stopping a release based on observed results.

Explanation

Correct Answer

B:

The targeted action is: Use quadrants to categorize different testing purposes rather than impose a mandatory linear schedule. It addresses the underlying software-testing principle: Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order. The relevant confirming evidence is: The team performs supporting checks and critical evaluations throughout the iteration as needed.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 5.1, Test Planning): A project estimates 120 test cases based on a single expert opinion but never reviews the result against prior similar releases. The present problem instead depends on: Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order.

C:

This choice is a useful response to a different testing situation (section 5.1, Test Planning): A release planner assumes completion of all planned tests is sufficient for exit, even when two unresolved critical payment defects remain. The present problem instead depends on: Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order.

D:

This choice is a useful response to a different testing situation (section 5.3, Test Monitoring, Test Control and Test Completion): A test team reports only 'green' after a critical data mismatch emerges but no one updates the plan or triggers investigation. The present problem instead depends on: Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order.

Question 766

A quality engineering exercise presents this condition: A tester uses the agile testing quadrants as a strict sequence of four release phases and refuses technical critique until business-facing tests finish. Which observation best verifies that the stated testing issue is addressed?

  1. Calculation defects fail in the fast layer and end-to-end journeys still establish user behavior.
  2. Common logic failures are caught quickly while the limited UI suite validates key journeys.
  3. The team performs supporting checks and critical evaluations throughout the iteration as needed.
  4. The release decision documents an explicit hold or accepted residual risk for those high-impact gaps.

Explanation

Correct Answer

C:

This is the expected verification outcome: The team performs supporting checks and critical evaluations throughout the iteration as needed. It directly checks the corrective activity (Use quadrants to categorize different testing purposes rather than impose a mandatory linear schedule.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A release team has 500 end-to-end browser scripts but no fast feedback for a changed calculation function, causing long fault isolation. It does not establish the required result for this case: The team performs supporting checks and critical evaluations throughout the iteration as needed.

B:

This result may validate another testing scenario: A delivery platform puts expensive UI automation at the bottom of its testing pyramid and has almost no fast component checks. It does not establish the required result for this case: The team performs supporting checks and critical evaluations throughout the iteration as needed.

D:

This result may validate another testing scenario: A system integration suite reaches the time budget with ten unexecuted high-risk cases, but management closes testing because the planned deadline was reached. It does not establish the required result for this case: The team performs supporting checks and critical evaluations throughout the iteration as needed.

Question 767

A quality engineering exercise presents this condition: A tester uses the agile testing quadrants as a strict sequence of four release phases and refuses technical critique until business-facing tests finish. Which testing concept or underlying cause best explains the reported problem?

  1. PERT weights the most likely value more heavily than the extremes and must not be confused with an unqualified mean.
  2. Testers contribute estimates and dependencies to iteration planning, not just the final demonstration.
  3. Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order.
  4. Test monitoring collects information while test control takes corrective actions using that information.

Explanation

Correct Answer

C:

The most relevant explanation is: Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order. This describes why the original situation (A tester uses the agile testing quadrants as a strict sequence of four release phases and refuses technical critique until business-facing tests finish.) merits the response: Use quadrants to categorize different testing purposes rather than impose a mandatory linear schedule.

Incorrect Answers

A:

This principle could explain a different testing issue: A project manager uses a three-point estimate optimistic 2 days, most likely 5 days, pessimistic 11 days, but reports a simple arithmetic mean without stating the chosen formula. The present case is better explained by: Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order.

B:

This principle could explain a different testing issue: A scrum team schedules a sprint demo while ignoring time to prepare test data and validate the integrated user story. The present case is better explained by: Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order.

D:

This principle could explain a different testing issue: A test team reports only 'green' after a critical data mismatch emerges but no one updates the plan or triggers investigation. The present case is better explained by: Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order.

Question 768

A quality engineering exercise presents this condition: A tester uses the agile testing quadrants as a strict sequence of four release phases and refuses technical critique until business-facing tests finish. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Map planned checks to quadrants without turning them into stage gates.
  2. Make readiness conditions visible in deployment and test scheduling.
  3. Use product-risk assessments to select early tests and confirm priorities with stakeholders.
  4. Define threshold-based escalation and reporting schedules with stakeholders.

Explanation

Correct Answer

A:

This safeguard specifically targets the contributing cause: Map planned checks to quadrants without turning them into stage gates. It addresses the principle (Testing quadrants help discuss test purpose and perspective, not a compulsory lifecycle order.) and can be assessed by: The team performs supporting checks and critical evaluations throughout the iteration as needed.

Incorrect Answers

B:

This preventive step mitigates a different project risk (syllabus section 5.1): An integration group begins formal testing while the authentication environment is unavailable and a critical database schema is still changing. The targeted safeguard for the current case is: Map planned checks to quadrants without turning them into stage gates.

C:

This preventive step mitigates a different project risk (syllabus section 5.1): A tester ranks cases solely by customer visibility and leaves a severe hidden data-integrity risk until the final day. The targeted safeguard for the current case is: Map planned checks to quadrants without turning them into stage gates.

D:

This preventive step mitigates a different project risk (syllabus section 5.3): A tester sends all defect details in a single long daily status email while operations needs an immediate signal when payment failures exceed an agreed threshold. The targeted safeguard for the current case is: Map planned checks to quadrants without turning them into stage gates.

Question 769

A software testing team encounters the following project situation: A release team has 500 end-to-end browser scripts but no fast feedback for a changed calculation function, causing long fault isolation. Which testing activity or corrective action best addresses this situation?

  1. Add focused component checks while retaining essential integrated acceptance tests.
  2. Rebalance towards many fast focused component tests, fewer integration tests and fewer slow end-to-end tests.
  3. Reserve time for test closure evidence, data cleanup and retrospective lessons in the test schedule.
  4. Include significant unresolved defects and their impacts regardless of organizational ownership.

Explanation

Correct Answer

A:

The targeted action is: Add focused component checks while retaining essential integrated acceptance tests. It addresses the underlying software-testing principle: A balanced test pyramid improves diagnostic speed compared with overreliance on expensive UI cases. The relevant confirming evidence is: Calculation defects fail in the fast layer and end-to-end journeys still establish user behavior.

Incorrect Answers

B:

This choice is a useful response to a different testing situation (section 5.1, Test Planning): A delivery platform puts expensive UI automation at the bottom of its testing pyramid and has almost no fast component checks. The present problem instead depends on: A balanced test pyramid improves diagnostic speed compared with overreliance on expensive UI cases.

C:

This choice is a useful response to a different testing situation (section 5.1, Test Planning): A company finishes implementation early and cancels all planned test completion work, including cleanup and preservation of reusable fixtures. The present problem instead depends on: A balanced test pyramid improves diagnostic speed compared with overreliance on expensive UI cases.

D:

This choice is a useful response to a different testing situation (section 5.5, Defect Management): A release board considers a known authorization bypass as an open defect but the test lead hides it from the completion report because it is assigned to another department. The present problem instead depends on: A balanced test pyramid improves diagnostic speed compared with overreliance on expensive UI cases.

Question 770

A software testing team encounters the following project situation: A release team has 500 end-to-end browser scripts but no fast feedback for a changed calculation function, causing long fault isolation. Which observation best verifies that the stated testing issue is addressed?

  1. The weighted estimate is 5.5 days with its formula and assumptions documented.
  2. The estimate reflects actual completion effort including integration acceptance checks.
  3. The assessment identifies loss-of-payment scenarios and provides a justified ranking.
  4. Calculation defects fail in the fast layer and end-to-end journeys still establish user behavior.

Explanation

Correct Answer

D:

This is the expected verification outcome: Calculation defects fail in the fast layer and end-to-end journeys still establish user behavior. It directly checks the corrective activity (Add focused component checks while retaining essential integrated acceptance tests.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A project manager uses a three-point estimate optimistic 2 days, most likely 5 days, pessimistic 11 days, but reports a simple arithmetic mean without stating the chosen formula. It does not establish the required result for this case: Calculation defects fail in the fast layer and end-to-end journeys still establish user behavior.

B:

This result may validate another testing scenario: A scrum team estimates one very complex integration story using only development hours, then realizes testing and third-party environment setup consume most of the iteration. It does not establish the required result for this case: Calculation defects fail in the fast layer and end-to-end journeys still establish user behavior.

C:

This result may validate another testing scenario: An online marketplace risk analysis marks 'checkout service may go down' without estimating what conditions could trigger it or how severe the effect would be. It does not establish the required result for this case: Calculation defects fail in the fast layer and end-to-end journeys still establish user behavior.