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Exam Code: CTFL v4.0

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

Certification Provider: ISTQB

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ISTQB CTFL v4.0 Practice Test 92

Question 910

A quality engineering exercise presents this condition: 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. Which observation best verifies that the stated testing issue is addressed?

  1. A failed run can be reproduced with the same code, rules and test configuration.
  2. Both teams reproduce the expected outcome when using the same configuration.
  3. The report names the current test versions and clearly excludes obsolete results.
  4. Another engineer reproduces the crash in the stated build and can investigate it.

Explanation

Correct Answer

B:

This is the expected verification outcome: Both teams reproduce the expected outcome when using the same configuration. It directly checks the corrective activity (Compare environment and software baselines, including feature flags, before interpreting the discrepant results.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A security regression fails after a deployment and the tester cannot identify which application build or rule file was tested because artifact names are reused. It does not establish the required result for this case: Both teams reproduce the expected outcome when using the same configuration.

C:

This result may validate another testing scenario: A release candidate has many test suites but nobody tracks which tests were updated after an API contract was changed, so old validations are used in the final report. It does not establish the required result for this case: Both teams reproduce the expected outcome when using the same configuration.

D:

This result may validate another testing scenario: A mobile app tester files a defect with title 'does not work', no expected outcome, and no steps, preventing a developer from reproducing it. It does not establish the required result for this case: Both teams reproduce the expected outcome when using the same configuration.

Question 911

A quality engineering exercise presents this condition: 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. Which testing concept or underlying cause best explains the reported problem?

  1. Version and configuration differences can explain apparent inconsistencies in testing outcomes.
  2. Test environment state is part of test configuration needed for reliable comparisons.
  3. Testware itself needs configuration management as requirements and products change.
  4. Monitoring metrics are meaningful only with comparable population and configuration context.

Explanation

Correct Answer

A:

The most relevant explanation is: Version and configuration differences can explain apparent inconsistencies in testing outcomes. This describes why the original situation (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.) merits the response: Compare environment and software baselines, including feature flags, before interpreting the discrepant results.

Incorrect Answers

B:

This principle could explain a different testing issue: A bank restores a failed staging environment from a snapshot but cannot determine which database schema, service version and configuration were present before restoration. The present case is better explained by: Version and configuration differences can explain apparent inconsistencies in testing outcomes.

C:

This principle could explain a different testing issue: A release candidate has many test suites but nobody tracks which tests were updated after an API contract was changed, so old validations are used in the final report. The present case is better explained by: Version and configuration differences can explain apparent inconsistencies in testing outcomes.

D:

This principle could explain a different testing issue: An automated regression run failed overnight, and a dashboard charts failure counts without recording which build or environment produced them. The present case is better explained by: Version and configuration differences can explain apparent inconsistencies in testing outcomes.

Question 912

A quality engineering exercise presents this condition: 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. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Automate environment manifests and check them before each significant run.
  2. Baseline requirements and their tests together for major release evidence.
  3. Include feature flags and build hashes in defect evidence.
  4. Use explicit unresolved or needs-information states for insufficient reproductions.

Explanation

Correct Answer

C:

This safeguard specifically targets the contributing cause: Include feature flags and build hashes in defect evidence. It addresses the principle (Version and configuration differences can explain apparent inconsistencies in testing outcomes.) and can be assessed by: Both teams reproduce the expected outcome when using the same configuration.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 5.4): A bank restores a failed staging environment from a snapshot but cannot determine which database schema, service version and configuration were present before restoration. The targeted safeguard for the current case is: Include feature flags and build hashes in defect evidence.

B:

This preventive step mitigates a different project risk (syllabus section 5.4): A test report references an approved requirement ID but not the revision, even though the requirement changed its threshold between test runs. The targeted safeguard for the current case is: Include feature flags and build hashes in defect evidence.

D:

This preventive step mitigates a different project risk (syllabus section 5.5): A team closes a reported failure as 'cannot reproduce' without documenting tested conditions or asking the reporter for missing details. The targeted safeguard for the current case is: Include feature flags and build hashes in defect evidence.

Question 913

A software testing team encounters the following project situation: A release candidate has many test suites but nobody tracks which tests were updated after an API contract was changed, so old validations are used in the final report. Which testing activity or corrective action best addresses this situation?

  1. Use configuration management to uniquely identify test objects, environments, data and relevant versions.
  2. Link the result to the exact version of the requirement and expected behavior.
  3. Establish a test plan covering scope, approach, resources, risks, schedule and clear completion conditions.
  4. Apply configuration control and change impact links to the affected testware.

Explanation

Correct Answer

D:

The targeted action is: Apply configuration control and change impact links to the affected testware. It addresses the underlying software-testing principle: Testware itself needs configuration management as requirements and products change. The relevant confirming evidence is: The report names the current test versions and clearly excludes obsolete results.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 5.4, Configuration Management): A security regression fails after a deployment and the tester cannot identify which application build or rule file was tested because artifact names are reused. The present problem instead depends on: Testware itself needs configuration management as requirements and products change.

B:

This choice is a useful response to a different testing situation (section 5.4, Configuration Management): A test report references an approved requirement ID but not the revision, even though the requirement changed its threshold between test runs. The present problem instead depends on: Testware itself needs configuration management as requirements and products change.

C:

This choice is a useful response to a different testing situation (section 5.1, Test Planning): A testing lead prepares a one-page plan listing only individual test scripts, with no scope, schedule, risks, environment, or completion criteria. The present problem instead depends on: Testware itself needs configuration management as requirements and products change.

Question 914

A software testing team encounters the following project situation: A release candidate has many test suites but nobody tracks which tests were updated after an API contract was changed, so old validations are used in the final report. Which observation best verifies that the stated testing issue is addressed?

  1. Both runs use stable declared fixtures and no longer influence one another.
  2. Both teams reproduce the expected outcome when using the same configuration.
  3. The report names the current test versions and clearly excludes obsolete results.
  4. The issue history distinguishes the corrected failure from a newly introduced incompatible API response.

Explanation

Correct Answer

C:

This is the expected verification outcome: The report names the current test versions and clearly excludes obsolete results. It directly checks the corrective activity (Apply configuration control and change impact links to the affected testware.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: An automation team changes test-data fixtures in a shared folder while two branches run parallel regression suites, causing nondeterministic results. It does not establish the required result for this case: The report names the current test versions and clearly excludes obsolete results.

B:

This result may validate another testing scenario: 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. It does not establish the required result for this case: The report names the current test versions and clearly excludes obsolete results.

D:

This result may validate another testing scenario: An integration defect passes retest, but related tests expose a new API schema regression and the manager closes all work as one fixed issue. It does not establish the required result for this case: The report names the current test versions and clearly excludes obsolete results.

Question 915

A software testing team encounters the following project situation: A release candidate has many test suites but nobody tracks which tests were updated after an API contract was changed, so old validations are used in the final report. Which testing concept or underlying cause best explains the reported problem?

  1. Reproducible testing requires control of identified configuration items and baselines.
  2. Testware itself needs configuration management as requirements and products change.
  3. Traceability without configuration version may be insufficient to reproduce a test oracle.
  4. Test reports should reflect the information needs and decisions of their intended audience.

Explanation

Correct Answer

B:

The most relevant explanation is: Testware itself needs configuration management as requirements and products change. This describes why the original situation (A release candidate has many test suites but nobody tracks which tests were updated after an API contract was changed, so old validations are used in the final report.) merits the response: Apply configuration control and change impact links to the affected testware.

Incorrect Answers

A:

This principle could explain a different testing issue: A security regression fails after a deployment and the tester cannot identify which application build or rule file was tested because artifact names are reused. The present case is better explained by: Testware itself needs configuration management as requirements and products change.

C:

This principle could explain a different testing issue: A test report references an approved requirement ID but not the revision, even though the requirement changed its threshold between test runs. The present case is better explained by: Testware itself needs configuration management as requirements and products change.

D:

This principle could explain a different testing issue: A delivery manager receives an identical technical log dump and high-level executive report despite the two audiences needing different decisions. The present case is better explained by: Testware itself needs configuration management as requirements and products change.

Question 916

A software testing team encounters the following project situation: A release candidate has many test suites but nobody tracks which tests were updated after an API contract was changed, so old validations are used in the final report. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Baseline requirements and their tests together for major release evidence.
  2. Automate environment manifests and check them before each significant run.
  3. Record complexity and environment drivers in estimation baselines.
  4. Review affected test cases and scripts with each contract revision.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Review affected test cases and scripts with each contract revision. It addresses the principle (Testware itself needs configuration management as requirements and products change.) and can be assessed by: The report names the current test versions and clearly excludes obsolete results.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 5.4): A test report references an approved requirement ID but not the revision, even though the requirement changed its threshold between test runs. The targeted safeguard for the current case is: Review affected test cases and scripts with each contract revision.

B:

This preventive step mitigates a different project risk (syllabus section 5.4): A bank restores a failed staging environment from a snapshot but cannot determine which database schema, service version and configuration were present before restoration. The targeted safeguard for the current case is: Review affected test cases and scripts with each contract revision.

C:

This preventive step mitigates a different project risk (syllabus section 5.1): A quality lead assumes the same count of test cases means identical effort across a simple API and a complex hardware integration system. The targeted safeguard for the current case is: Review affected test cases and scripts with each contract revision.

Question 917

During a release-readiness review, a tester observes: A mobile app tester files a defect with title 'does not work', no expected outcome, and no steps, preventing a developer from reproducing it. Which testing activity or corrective action best addresses this situation?

  1. Close the confirmed original defect separately while logging and investigating the newly observed regression.
  2. Include significant unresolved defects and their impacts regardless of organizational ownership.
  3. Record a concise observed failure, reproduction steps, environment, expected and actual results.
  4. Analyze scope and external dependencies before committing to a confident test schedule.

Explanation

Correct Answer

C:

The targeted action is: Record a concise observed failure, reproduction steps, environment, expected and actual results. It addresses the underlying software-testing principle: Defect reports must communicate enough information to analyze and resolve an issue. The relevant confirming evidence is: Another engineer reproduces the crash in the stated build and can investigate it.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 5.5, Defect Management): An integration defect passes retest, but related tests expose a new API schema regression and the manager closes all work as one fixed issue. The present problem instead depends on: Defect reports must communicate enough information to analyze and resolve an issue.

B:

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: Defect reports must communicate enough information to analyze and resolve an issue.

D:

This choice is a useful response to a different testing situation (section 5.1, Test Planning): A migration sponsor requests a release date while the test lead has not identified which services depend on a retired message broker. The present problem instead depends on: Defect reports must communicate enough information to analyze and resolve an issue.

Question 918

During a release-readiness review, a tester observes: A mobile app tester files a defect with title 'does not work', no expected outcome, and no steps, preventing a developer from reproducing it. Which observation best verifies that the stated testing issue is addressed?

  1. The issue receives a severity assessment that reflects possible irreversible data loss.
  2. A developer reproduces the exact incorrect total from the defect report.
  3. Another engineer reproduces the crash in the stated build and can investigate it.
  4. Patient-safety behaviors receive stronger validation than low-impact presentation details.

Explanation

Correct Answer

C:

This is the expected verification outcome: Another engineer reproduces the crash in the stated build and can investigate it. It directly checks the corrective activity (Record a concise observed failure, reproduction steps, environment, expected and actual results.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A critical data-loss defect is logged as lowest priority because the feature is used rarely, with no assessment of potential business harm. It does not establish the required result for this case: Another engineer reproduces the crash in the stated build and can investigate it.

B:

This result may validate another testing scenario: A reporting test detects an incorrect decimal total, but the defect tracker records only a UI screenshot without the input data or rule being applied. It does not establish the required result for this case: Another engineer reproduces the crash in the stated build and can investigate it.

D:

This result may validate another testing scenario: A manager insists all risks with the same likelihood score deserve identical test effort even though one affects only a minor label and the other affects patient safety. It does not establish the required result for this case: Another engineer reproduces the crash in the stated build and can investigate it.

Question 919

During a release-readiness review, a tester observes: A mobile app tester files a defect with title 'does not work', no expected outcome, and no steps, preventing a developer from reproducing it. Which testing concept or underlying cause best explains the reported problem?

  1. Confirmation testing does not eliminate the need to manage adverse side effects as separate defects.
  2. Defect reports must communicate enough information to analyze and resolve an issue.
  3. Severity expresses impact of a defect while priority describes urgency of its resolution.
  4. Test planning quality relies on identifying relevant test objects, constraints and dependencies early.

Explanation

Correct Answer

B:

The most relevant explanation is: Defect reports must communicate enough information to analyze and resolve an issue. This describes why the original situation (A mobile app tester files a defect with title 'does not work', no expected outcome, and no steps, preventing a developer from reproducing it.) merits the response: Record a concise observed failure, reproduction steps, environment, expected and actual results.

Incorrect Answers

A:

This principle could explain a different testing issue: An integration defect passes retest, but related tests expose a new API schema regression and the manager closes all work as one fixed issue. The present case is better explained by: Defect reports must communicate enough information to analyze and resolve an issue.

C:

This principle could explain a different testing issue: A critical data-loss defect is logged as lowest priority because the feature is used rarely, with no assessment of potential business harm. The present case is better explained by: Defect reports must communicate enough information to analyze and resolve an issue.

D:

This principle could explain a different testing issue: A migration sponsor requests a release date while the test lead has not identified which services depend on a retired message broker. The present case is better explained by: Defect reports must communicate enough information to analyze and resolve an issue.

Question 920

During a release-readiness review, a tester observes: A mobile app tester files a defect with title 'does not work', no expected outcome, and no steps, preventing a developer from reproducing it. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Provide defect triage guidelines with explicit severity and priority dimensions.
  2. Include test-data and expected-result references in numerical defect reports.
  3. Require structured reproducibility and actual-versus-expected data in issue templates.
  4. State metric formulas and include status categories consistently.

Explanation

Correct Answer

C:

This safeguard specifically targets the contributing cause: Require structured reproducibility and actual-versus-expected data in issue templates. It addresses the principle (Defect reports must communicate enough information to analyze and resolve an issue.) and can be assessed by: Another engineer reproduces the crash in the stated build and can investigate it.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 5.5): A critical data-loss defect is logged as lowest priority because the feature is used rarely, with no assessment of potential business harm. The targeted safeguard for the current case is: Require structured reproducibility and actual-versus-expected data in issue templates.

B:

This preventive step mitigates a different project risk (syllabus section 5.5): A reporting test detects an incorrect decimal total, but the defect tracker records only a UI screenshot without the input data or rule being applied. The targeted safeguard for the current case is: Require structured reproducibility and actual-versus-expected data in issue templates.

D:

This preventive step mitigates a different project risk (syllabus section 5.3): A release dashboard says 95% of tests passed but excludes 40 blocked cases, leading leadership to believe almost all required behavior is validated. The targeted safeguard for the current case is: Require structured reproducibility and actual-versus-expected data in issue templates.