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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 34

Question 330

A tester is asked to evaluate the following situation: An ERP is partially retired and a data export process is introduced, but test planning excludes archival integrity because no new user interface was built. Which observation best verifies that the stated testing issue is addressed?

  1. Representative historical filing fixtures produce correct expected outcomes under the new runtime.
  2. A representative submission creates and consumes the expected message in the new region.
  3. Sampled records match source data and authorized auditors can retrieve the archive.
  4. The missed legal exception fails a test even though existing branch coverage remains high.

Explanation

Correct Answer

C:

This is the expected verification outcome: Sampled records match source data and authorized auditors can retrieve the archive. It directly checks the corrective activity (Verify completeness, correctness and accessibility of the exported records as part of retirement maintenance testing.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A tax application migrates tax rules to a newer runtime and the test team tests only newly added features, ignoring old filings that may now calculate differently. It does not establish the required result for this case: Sampled records match source data and authorized auditors can retrieve the archive.

B:

This result may validate another testing scenario: A public portal is moved from one cloud region to another without code changes and fails because the new region lacks a required message queue. It does not establish the required result for this case: Sampled records match source data and authorized auditors can retrieve the archive.

D:

This result may validate another testing scenario: An insurance team executes code-based branch tests exclusively and overlooks a legally required policy exception absent from the implementation. It does not establish the required result for this case: Sampled records match source data and authorized auditors can retrieve the archive.

Question 331

A tester is asked to evaluate the following situation: An ERP is partially retired and a data export process is introduced, but test planning excludes archival integrity because no new user interface was built. Which testing concept or underlying cause best explains the reported problem?

  1. Retirement and migration activities may require testing even when new functionality is not delivered.
  2. Maintenance testing scope should be guided by impact and risk rather than always running everything.
  3. Maintenance changes can propagate risk into external systems connected to the modified interface.
  4. Acceptance testing assesses readiness for use and stakeholder needs, not only developer expectations.

Explanation

Correct Answer

A:

The most relevant explanation is: Retirement and migration activities may require testing even when new functionality is not delivered. This describes why the original situation (An ERP is partially retired and a data export process is introduced, but test planning excludes archival integrity because no new user interface was built.) merits the response: Verify completeness, correctness and accessibility of the exported records as part of retirement maintenance testing.

Incorrect Answers

B:

This principle could explain a different testing issue: A vendor adds a minor currency symbol to a financial report and runs every historical system test without considering the low-risk scope or changed reporting output. The present case is better explained by: Retirement and migration activities may require testing even when new functionality is not delivered.

C:

This principle could explain a different testing issue: An API provider deprecates an endpoint, but clients continue using it because the maintenance team tests only the provider's new implementation. The present case is better explained by: Retirement and migration activities may require testing even when new functionality is not delivered.

D:

This principle could explain a different testing issue: A hospital conducts acceptance testing with only the development team's synthetic workflow, and actual clinicians find no provision for emergency priority overrides. The present case is better explained by: Retirement and migration activities may require testing even when new functionality is not delivered.

Question 332

A tester is asked to evaluate the following situation: An ERP is partially retired and a data export process is introduced, but test planning excludes archival integrity because no new user interface was built. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Review integration dependencies and configuration drift during maintenance relocation.
  2. Include downstream consumer compatibility in maintenance change reviews.
  3. Require both fix evidence and impact-driven regression selection.
  4. Include data migration and decommissioning risks in maintenance test plans.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Include data migration and decommissioning risks in maintenance test plans. It addresses the principle (Retirement and migration activities may require testing even when new functionality is not delivered.) and can be assessed by: Sampled records match source data and authorized auditors can retrieve the archive.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 2.3): A public portal is moved from one cloud region to another without code changes and fails because the new region lacks a required message queue. The targeted safeguard for the current case is: Include data migration and decommissioning risks in maintenance test plans.

B:

This preventive step mitigates a different project risk (syllabus section 2.3): An API provider deprecates an endpoint, but clients continue using it because the maintenance team tests only the provider's new implementation. The targeted safeguard for the current case is: Include data migration and decommissioning risks in maintenance test plans.

C:

This preventive step mitigates a different project risk (syllabus section 2.2): A software update corrects a failed coupon rule, and testers rerun only that coupon scenario while a nearby discount-rule regression escapes. The targeted safeguard for the current case is: Include data migration and decommissioning risks in maintenance test plans.

Question 333

A quality engineering exercise presents this condition: A vendor adds a minor currency symbol to a financial report and runs every historical system test without considering the low-risk scope or changed reporting output. Which testing activity or corrective action best addresses this situation?

  1. Use change-impact analysis to retest existing tax calculations affected by the runtime migration.
  2. Execute confirmation testing for the original crash and selected regression checks for related startup flows.
  3. Select impacted formatting and financial total tests with an explicit reasoned regression scope.
  4. Shorten the test feedback loop and use continuous testing aligned with deployment frequency and risk.

Explanation

Correct Answer

C:

The targeted action is: Select impacted formatting and financial total tests with an explicit reasoned regression scope. It addresses the underlying software-testing principle: Maintenance testing scope should be guided by impact and risk rather than always running everything. The relevant confirming evidence is: Currency symbols and numeric totals meet requirements while unrelated components are appropriately sampled.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 2.3, Maintenance Testing): A tax application migrates tax rules to a newer runtime and the test team tests only newly added features, ignoring old filings that may now calculate differently. The present problem instead depends on: Maintenance testing scope should be guided by impact and risk rather than always running everything.

B:

This choice is a useful response to a different testing situation (section 2.3, Maintenance Testing): A point-of-sale app has an emergency hotfix for a crash, and release engineers validate only that startup succeeds while omitting the fixed crash path. The present problem instead depends on: Maintenance testing scope should be guided by impact and risk rather than always running everything.

D:

This choice is a useful response to a different testing situation (section 2.1, Testing in the Context of a Software Development Lifecycle (SDLC)): A software team changes continuous deployment to daily releases but keeps a six-week feedback cycle for defects found in user acceptance testing. The present problem instead depends on: Maintenance testing scope should be guided by impact and risk rather than always running everything.

Question 334

A quality engineering exercise presents this condition: A vendor adds a minor currency symbol to a financial report and runs every historical system test without considering the low-risk scope or changed reporting output. Which observation best verifies that the stated testing issue is addressed?

  1. Supported clients use the replacement endpoint and obsolete calls fail in the documented manner.
  2. The original reproduction no longer crashes and nearby checkout initialization still works.
  3. A story is not marked done until its functional and regression acceptance checks complete.
  4. Currency symbols and numeric totals meet requirements while unrelated components are appropriately sampled.

Explanation

Correct Answer

D:

This is the expected verification outcome: Currency symbols and numeric totals meet requirements while unrelated components are appropriately sampled. It directly checks the corrective activity (Select impacted formatting and financial total tests with an explicit reasoned regression scope.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: An API provider deprecates an endpoint, but clients continue using it because the maintenance team tests only the provider's new implementation. It does not establish the required result for this case: Currency symbols and numeric totals meet requirements while unrelated components are appropriately sampled.

B:

This result may validate another testing scenario: A point-of-sale app has an emergency hotfix for a crash, and release engineers validate only that startup succeeds while omitting the fixed crash path. It does not establish the required result for this case: Currency symbols and numeric totals meet requirements while unrelated components are appropriately sampled.

C:

This result may validate another testing scenario: An agile team finishes coding stories during a sprint but schedules all functional tests into a distant stabilization sprint, delaying discovery of regressions. It does not establish the required result for this case: Currency symbols and numeric totals meet requirements while unrelated components are appropriately sampled.

Question 335

A quality engineering exercise presents this condition: A vendor adds a minor currency symbol to a financial report and runs every historical system test without considering the low-risk scope or changed reporting output. Which testing concept or underlying cause best explains the reported problem?

  1. Maintenance changes can propagate risk into external systems connected to the modified interface.
  2. Maintenance testing addresses regression risk from changes to existing systems and environments.
  3. Maintenance testing scope should be guided by impact and risk rather than always running everything.
  4. Non-functional testing evaluates quality characteristics such as usability and accessibility.

Explanation

Correct Answer

C:

The most relevant explanation is: Maintenance testing scope should be guided by impact and risk rather than always running everything. This describes why the original situation (A vendor adds a minor currency symbol to a financial report and runs every historical system test without considering the low-risk scope or changed reporting output.) merits the response: Select impacted formatting and financial total tests with an explicit reasoned regression scope.

Incorrect Answers

A:

This principle could explain a different testing issue: An API provider deprecates an endpoint, but clients continue using it because the maintenance team tests only the provider's new implementation. The present case is better explained by: Maintenance testing scope should be guided by impact and risk rather than always running everything.

B:

This principle could explain a different testing issue: A tax application migrates tax rules to a newer runtime and the test team tests only newly added features, ignoring old filings that may now calculate differently. The present case is better explained by: Maintenance testing scope should be guided by impact and risk rather than always running everything.

D:

This principle could explain a different testing issue: A medical web app performs every required calculation but shows unreadable labels to screen-reader users, and the team says accessibility is outside all testing. The present case is better explained by: Maintenance testing scope should be guided by impact and risk rather than always running everything.

Question 336

A quality engineering exercise presents this condition: A vendor adds a minor currency symbol to a financial report and runs every historical system test without considering the low-risk scope or changed reporting output. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Preserve each defect's reproducing test and maintain an impact-based smoke set.
  2. Include downstream consumer compatibility in maintenance change reviews.
  3. Test dependent clients through the interface lifecycle.
  4. Maintain a practical change-impact matrix for regression selection.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Maintain a practical change-impact matrix for regression selection. It addresses the principle (Maintenance testing scope should be guided by impact and risk rather than always running everything.) and can be assessed by: Currency symbols and numeric totals meet requirements while unrelated components are appropriately sampled.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 2.3): A point-of-sale app has an emergency hotfix for a crash, and release engineers validate only that startup succeeds while omitting the fixed crash path. The targeted safeguard for the current case is: Maintain a practical change-impact matrix for regression selection.

B:

This preventive step mitigates a different project risk (syllabus section 2.3): An API provider deprecates an endpoint, but clients continue using it because the maintenance team tests only the provider's new implementation. The targeted safeguard for the current case is: Maintain a practical change-impact matrix for regression selection.

C:

This preventive step mitigates a different project risk (syllabus section 2.2): A content platform redesign removes a field from its API but deploys the change without checking the mobile app consumer, causing an existing feature to break. The targeted safeguard for the current case is: Maintain a practical change-impact matrix for regression selection.

Question 337

A software testing team encounters the following project situation: A point-of-sale app has an emergency hotfix for a crash, and release engineers validate only that startup succeeds while omitting the fixed crash path. Which testing activity or corrective action best addresses this situation?

  1. Test critical workflows in the new operational environment before declaring migration complete.
  2. Verify transitional behavior and dependent consumer migration under the deprecation plan.
  3. Execute confirmation testing for the original crash and selected regression checks for related startup flows.
  4. Run confirmation testing for the original coupon failure plus risk-selected regression tests of related discount behavior.

Explanation

Correct Answer

C:

The targeted action is: Execute confirmation testing for the original crash and selected regression checks for related startup flows. It addresses the underlying software-testing principle: Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects. The relevant confirming evidence is: The original reproduction no longer crashes and nearby checkout initialization still works.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 2.3, Maintenance Testing): A public portal is moved from one cloud region to another without code changes and fails because the new region lacks a required message queue. The present problem instead depends on: Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects.

B:

This choice is a useful response to a different testing situation (section 2.3, Maintenance Testing): An API provider deprecates an endpoint, but clients continue using it because the maintenance team tests only the provider's new implementation. The present problem instead depends on: Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects.

D:

This choice is a useful response to a different testing situation (section 2.2, Test Levels and Test Types): A software update corrects a failed coupon rule, and testers rerun only that coupon scenario while a nearby discount-rule regression escapes. The present problem instead depends on: Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects.

Question 338

A software testing team encounters the following project situation: A point-of-sale app has an emergency hotfix for a crash, and release engineers validate only that startup succeeds while omitting the fixed crash path. Which observation best verifies that the stated testing issue is addressed?

  1. A representative submission creates and consumes the expected message in the new region.
  2. Representative historical filing fixtures produce correct expected outcomes under the new runtime.
  3. The original coupon case passes and previously working combination discounts remain correct.
  4. The original reproduction no longer crashes and nearby checkout initialization still works.

Explanation

Correct Answer

D:

This is the expected verification outcome: The original reproduction no longer crashes and nearby checkout initialization still works. It directly checks the corrective activity (Execute confirmation testing for the original crash and selected regression checks for related startup flows.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A public portal is moved from one cloud region to another without code changes and fails because the new region lacks a required message queue. It does not establish the required result for this case: The original reproduction no longer crashes and nearby checkout initialization still works.

B:

This result may validate another testing scenario: A tax application migrates tax rules to a newer runtime and the test team tests only newly added features, ignoring old filings that may now calculate differently. It does not establish the required result for this case: The original reproduction no longer crashes and nearby checkout initialization still works.

C:

This result may validate another testing scenario: A software update corrects a failed coupon rule, and testers rerun only that coupon scenario while a nearby discount-rule regression escapes. It does not establish the required result for this case: The original reproduction no longer crashes and nearby checkout initialization still works.

Question 339

A software testing team encounters the following project situation: A point-of-sale app has an emergency hotfix for a crash, and release engineers validate only that startup succeeds while omitting the fixed crash path. Which testing concept or underlying cause best explains the reported problem?

  1. Maintenance testing scope should be guided by impact and risk rather than always running everything.
  2. Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects.
  3. Maintenance testing addresses regression risk from changes to existing systems and environments.
  4. Confirmation testing checks a specific fix; regression testing checks for adverse side effects.

Explanation

Correct Answer

B:

The most relevant explanation is: Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects. This describes why the original situation (A point-of-sale app has an emergency hotfix for a crash, and release engineers validate only that startup succeeds while omitting the fixed crash path.) merits the response: Execute confirmation testing for the original crash and selected regression checks for related startup flows.

Incorrect Answers

A:

This principle could explain a different testing issue: A vendor adds a minor currency symbol to a financial report and runs every historical system test without considering the low-risk scope or changed reporting output. The present case is better explained by: Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects.

C:

This principle could explain a different testing issue: A tax application migrates tax rules to a newer runtime and the test team tests only newly added features, ignoring old filings that may now calculate differently. The present case is better explained by: Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects.

D:

This principle could explain a different testing issue: A software update corrects a failed coupon rule, and testers rerun only that coupon scenario while a nearby discount-rule regression escapes. The present case is better explained by: Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects.

Question 340

A software testing team encounters the following project situation: A point-of-sale app has an emergency hotfix for a crash, and release engineers validate only that startup succeeds while omitting the fixed crash path. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Preserve each defect's reproducing test and maintain an impact-based smoke set.
  2. Trace infrastructure changes to dependent business rules and associated regression cases.
  3. Include downstream consumer compatibility in maintenance change reviews.
  4. Derive acceptance scenarios from real users and business processes.

Explanation

Correct Answer

A:

This safeguard specifically targets the contributing cause: Preserve each defect's reproducing test and maintain an impact-based smoke set. It addresses the principle (Corrective maintenance changes require evidence of the fix and of avoiding harmful side effects.) and can be assessed by: The original reproduction no longer crashes and nearby checkout initialization still works.

Incorrect Answers

B:

This preventive step mitigates a different project risk (syllabus section 2.3): A tax application migrates tax rules to a newer runtime and the test team tests only newly added features, ignoring old filings that may now calculate differently. The targeted safeguard for the current case is: Preserve each defect's reproducing test and maintain an impact-based smoke set.

C:

This preventive step mitigates a different project risk (syllabus section 2.3): An API provider deprecates an endpoint, but clients continue using it because the maintenance team tests only the provider's new implementation. The targeted safeguard for the current case is: Preserve each defect's reproducing test and maintain an impact-based smoke set.

D:

This preventive step mitigates a different project risk (syllabus section 2.2): A hospital conducts acceptance testing with only the development team's synthetic workflow, and actual clinicians find no provision for emergency priority overrides. The targeted safeguard for the current case is: Preserve each defect's reproducing test and maintain an impact-based smoke set.