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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 23

Question 220

A software testing team encounters the following project situation: A retail team's CI pipeline deploys a checkout update after compilation only, leaving high-impact payment tests for a weekly manual run. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Maintain a proportionate multi-level test portfolio.
  2. Review test oracles and run a red state before accepting each new TDD case.
  3. Monitor pipeline test coverage, quality and flaky-test behavior as changes are delivered.
  4. Derive acceptance scenarios from real users and business processes.

Explanation

Correct Answer

C:

This safeguard specifically targets the contributing cause: Monitor pipeline test coverage, quality and flaky-test behavior as changes are delivered. It addresses the principle (DevOps feedback benefits from frequent automated verification but testing remains necessary beyond a successful build.) and can be assessed by: A broken payment mapping fails the integration pipeline before deployment proceeds.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 2.1): A maintenance team relies solely on end-of-project system tests for every code change, even when a risky individual function can be tested independently. The targeted safeguard for the current case is: Monitor pipeline test coverage, quality and flaky-test behavior as changes are delivered.

B:

This preventive step mitigates a different project risk (syllabus section 2.1): A programmer writes production code before deciding what a small calculation should return, then adds a test that simply mirrors the implemented algorithm's wrong result. The targeted safeguard for the current case is: Monitor pipeline test coverage, quality and flaky-test behavior as changes are delivered.

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: Monitor pipeline test coverage, quality and flaky-test behavior as changes are delivered.

Question 221

During a release-readiness review, a tester observes: A product manager says shift-left means moving every production load test into the first day of requirements discovery, even before an executable performance environment exists. Which testing activity or corrective action best addresses this situation?

  1. Add fast relevant automated checks to continuous integration and a staged release gate for higher-level tests.
  2. Start feasible early risk and performance analysis while scheduling realistic dynamic load tests when supporting systems are available.
  3. Combine appropriately scoped component, integration and system checks to catch faults where they arise.
  4. Include recovery and reliability checks for the system's operational fault conditions.

Explanation

Correct Answer

B:

The targeted action is: Start feasible early risk and performance analysis while scheduling realistic dynamic load tests when supporting systems are available. It addresses the underlying software-testing principle: Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist. The relevant confirming evidence is: Designers address capacity risks early and later environment tests verify representative throughput.

Incorrect Answers

A:

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 retail team's CI pipeline deploys a checkout update after compilation only, leaving high-impact payment tests for a weekly manual run. The present problem instead depends on: Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist.

C:

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 maintenance team relies solely on end-of-project system tests for every code change, even when a risky individual function can be tested independently. The present problem instead depends on: Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist.

D:

This choice is a useful response to a different testing situation (section 2.2, Test Levels and Test Types): An IoT controller is tested against its functional specifications but cannot restart cleanly after a power interruption. The present problem instead depends on: Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist.

Question 222

During a release-readiness review, a tester observes: A product manager says shift-left means moving every production load test into the first day of requirements discovery, even before an executable performance environment exists. Which observation best verifies that the stated testing issue is addressed?

  1. The misunderstood workflow is corrected before a large suite encodes the wrong oracle.
  2. The next iteration includes a targeted check that prevents the repeated defect class.
  3. The original reproduction no longer crashes and nearby checkout initialization still works.
  4. Designers address capacity risks early and later environment tests verify representative throughput.

Explanation

Correct Answer

D:

This is the expected verification outcome: Designers address capacity risks early and later environment tests verify representative throughput. It directly checks the corrective activity (Start feasible early risk and performance analysis while scheduling realistic dynamic load tests when supporting systems are available.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A company uses nightly scripted browser tests but never reviews requirements, so everyone repeatedly automates checks for a misunderstood customer workflow. It does not establish the required result for this case: Designers address capacity risks early and later environment tests verify representative throughput.

B:

This result may validate another testing scenario: A project ends a sprint with the same repeating defect pattern but treats its retrospective as a meeting that cannot change testing. It does not establish the required result for this case: Designers address capacity risks early and later environment tests verify representative throughput.

C:

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: Designers address capacity risks early and later environment tests verify representative throughput.

Question 223

During a release-readiness review, a tester observes: A product manager says shift-left means moving every production load test into the first day of requirements discovery, even before an executable performance environment exists. Which testing concept or underlying cause best explains the reported problem?

  1. Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist.
  2. Delivery performance and tested product quality are related but distinct dimensions of an SDLC.
  3. Feedback from previous iterations can guide continuous improvements to both product and testing process.
  4. Non-functional testing evaluates quality characteristics such as usability and accessibility.

Explanation

Correct Answer

A:

The most relevant explanation is: Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist. This describes why the original situation (A product manager says shift-left means moving every production load test into the first day of requirements discovery, even before an executable performance environment exists.) merits the response: Start feasible early risk and performance analysis while scheduling realistic dynamic load tests when supporting systems are available.

Incorrect Answers

B:

This principle could explain a different testing issue: An organization assesses software testing success by deployment frequency alone, with no indicator of escaped high-severity failures after releases. The present case is better explained by: Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist.

C:

This principle could explain a different testing issue: A project ends a sprint with the same repeating defect pattern but treats its retrospective as a meeting that cannot change testing. The present case is better explained by: Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist.

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: Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist.

Question 224

During a release-readiness review, a tester observes: A product manager says shift-left means moving every production load test into the first day of requirements discovery, even before an executable performance environment exists. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Link validation activities to the lifecycle artifacts that provide their test basis.
  2. Record a measurable test-process improvement action during each relevant retrospective.
  3. Assign early analysis and subsequent executable checks to the correct delivery stages.
  4. Match coverage claims to the technique and metric actually used.

Explanation

Correct Answer

C:

This safeguard specifically targets the contributing cause: Assign early analysis and subsequent executable checks to the correct delivery stages. It addresses the principle (Shift-left emphasizes earlier appropriate activities, not doing every type of testing before its prerequisites exist.) and can be assessed by: Designers address capacity risks early and later environment tests verify representative throughput.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 2.1): A designer claims the V-model prohibits all iterative feedback and cannot support early test planning because diagrams put testing boxes after coding. The targeted safeguard for the current case is: Assign early analysis and subsequent executable checks to the correct delivery stages.

B:

This preventive step mitigates a different project risk (syllabus section 2.1): A project ends a sprint with the same repeating defect pattern but treats its retrospective as a meeting that cannot change testing. The targeted safeguard for the current case is: Assign early analysis and subsequent executable checks to the correct delivery stages.

D:

This preventive step mitigates a different project risk (syllabus section 2.2): A mobile app team uses a black-box login test to claim every internal conditional branch has executed because the screen looked correct. The targeted safeguard for the current case is: Assign early analysis and subsequent executable checks to the correct delivery stages.

Question 225

A test analyst investigates the following quality concern: A software team changes continuous deployment to daily releases but keeps a six-week feedback cycle for defects found in user acceptance testing. Which testing activity or corrective action best addresses this situation?

  1. Clarify desired behavior and write a failing automated component test before coding the solution.
  2. Combine appropriately scoped component, integration and system checks to catch faults where they arise.
  3. Test the interface contract between calling application and authentication component.
  4. Shorten the test feedback loop and use continuous testing aligned with deployment frequency and risk.

Explanation

Correct Answer

D:

The targeted action is: Shorten the test feedback loop and use continuous testing aligned with deployment frequency and risk. It addresses the underlying software-testing principle: Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases. The relevant confirming evidence is: Relevant smoke and regression issues are detected before daily production promotion.

Incorrect Answers

A:

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 programmer writes production code before deciding what a small calculation should return, then adds a test that simply mirrors the implemented algorithm's wrong result. The present problem instead depends on: Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases.

B:

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 maintenance team relies solely on end-of-project system tests for every code change, even when a risky individual function can be tested independently. The present problem instead depends on: Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases.

C:

This choice is a useful response to a different testing situation (section 2.2, Test Levels and Test Types): An authentication library passes isolated component checks but fails when the mobile app calls it with a missing refresh token. The present problem instead depends on: Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases.

Question 226

A test analyst investigates the following quality concern: A software team changes continuous deployment to daily releases but keeps a six-week feedback cycle for defects found in user acceptance testing. Which observation best verifies that the stated testing issue is addressed?

  1. Designers address capacity risks early and later environment tests verify representative throughput.
  2. A story is not marked done until its functional and regression acceptance checks complete.
  3. Relevant smoke and regression issues are detected before daily production promotion.
  4. Sampled records match source data and authorized auditors can retrieve the archive.

Explanation

Correct Answer

C:

This is the expected verification outcome: Relevant smoke and regression issues are detected before daily production promotion. It directly checks the corrective activity (Shorten the test feedback loop and use continuous testing aligned with deployment frequency and risk.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A product manager says shift-left means moving every production load test into the first day of requirements discovery, even before an executable performance environment exists. It does not establish the required result for this case: Relevant smoke and regression issues are detected before daily production promotion.

B:

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: Relevant smoke and regression issues are detected before daily production promotion.

D:

This result may validate another testing scenario: 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. It does not establish the required result for this case: Relevant smoke and regression issues are detected before daily production promotion.

Question 227

A test analyst investigates the following quality concern: A software team changes continuous deployment to daily releases but keeps a six-week feedback cycle for defects found in user acceptance testing. Which testing concept or underlying cause best explains the reported problem?

  1. Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases.
  2. Testing cost and feedback speed depend partly on the selected level and the test objective.
  3. DevOps feedback benefits from frequent automated verification but testing remains necessary beyond a successful build.
  4. Functional and non-functional test types target different quality questions and are complementary.

Explanation

Correct Answer

A:

The most relevant explanation is: Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases. This describes why the original situation (A software team changes continuous deployment to daily releases but keeps a six-week feedback cycle for defects found in user acceptance testing.) merits the response: Shorten the test feedback loop and use continuous testing aligned with deployment frequency and risk.

Incorrect Answers

B:

This principle could explain a different testing issue: A team writes one huge end-to-end acceptance scenario for a minor UI text edit and spends days waiting for infrastructure before validating the change. The present case is better explained by: Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases.

C:

This principle could explain a different testing issue: A retail team's CI pipeline deploys a checkout update after compilation only, leaving high-impact payment tests for a weekly manual run. The present case is better explained by: Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases.

D:

This principle could explain a different testing issue: A payment provider creates a new authentication algorithm and counts a security penetration test as proof that its business rules calculate fees correctly. The present case is better explained by: Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases.

Question 228

A test analyst investigates the following quality concern: A software team changes continuous deployment to daily releases but keeps a six-week feedback cycle for defects found in user acceptance testing. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Verify that each required executable specification has functioning step definitions and assertions.
  2. Include testing and review tasks in sprint planning and completion criteria.
  3. Match coverage claims to the technique and metric actually used.
  4. Review test cycle time and repair latency when altering release cadence.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Review test cycle time and repair latency when altering release cadence. It addresses the principle (Fast delivery without proportionate quality feedback can propagate defects repeatedly through releases.) and can be assessed by: Relevant smoke and regression issues are detected before daily production promotion.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 2.1): A project team interprets a written Gherkin scenario as an executable automated test, although no implementation links it to product behavior. The targeted safeguard for the current case is: Review test cycle time and repair latency when altering release cadence.

B:

This preventive step mitigates a different project risk (syllabus section 2.1): An agile team finishes coding stories during a sprint but schedules all functional tests into a distant stabilization sprint, delaying discovery of regressions. The targeted safeguard for the current case is: Review test cycle time and repair latency when altering release cadence.

C:

This preventive step mitigates a different project risk (syllabus section 2.2): A mobile app team uses a black-box login test to claim every internal conditional branch has executed because the screen looked correct. The targeted safeguard for the current case is: Review test cycle time and repair latency when altering release cadence.

Question 229

In a fictional application-delivery project, the team reports: An agile retrospective repeatedly lists environment delays but no corrective action is owned, so every iteration loses time to the same unavailable test database. Which testing activity or corrective action best addresses this situation?

  1. Convert the observation into an assigned improvement experiment with measurable success criteria.
  2. Shorten the test feedback loop and use continuous testing aligned with deployment frequency and risk.
  3. Begin relevant reviews and test design alongside each corresponding lifecycle work product instead of waiting for final execution.
  4. Verify transitional behavior and dependent consumer migration under the deprecation plan.

Explanation

Correct Answer

A:

The targeted action is: Convert the observation into an assigned improvement experiment with measurable success criteria. It addresses the underlying software-testing principle: Retrospectives support process improvement only when findings become acted-on changes. The relevant confirming evidence is: The next iteration shows fewer blocked tests because test data and database provisioning are automated.

Incorrect Answers

B:

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: Retrospectives support process improvement only when findings become acted-on changes.

C:

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 bank uses sequential requirements, design and coding phases but does not plan any testing until developers finish the whole system, leading to late feedback. The present problem instead depends on: Retrospectives support process improvement only when findings become acted-on changes.

D:

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: Retrospectives support process improvement only when findings become acted-on changes.

Question 230

In a fictional application-delivery project, the team reports: An agile retrospective repeatedly lists environment delays but no corrective action is owned, so every iteration loses time to the same unavailable test database. Which observation best verifies that the stated testing issue is addressed?

  1. Requirements and designs receive early feedback while integration and acceptance testing retain their planned places.
  2. A broken payment mapping fails the integration pipeline before deployment proceeds.
  3. Currency symbols and numeric totals meet requirements while unrelated components are appropriately sampled.
  4. The next iteration shows fewer blocked tests because test data and database provisioning are automated.

Explanation

Correct Answer

D:

This is the expected verification outcome: The next iteration shows fewer blocked tests because test data and database provisioning are automated. It directly checks the corrective activity (Convert the observation into an assigned improvement experiment with measurable success criteria.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A bank uses sequential requirements, design and coding phases but does not plan any testing until developers finish the whole system, leading to late feedback. It does not establish the required result for this case: The next iteration shows fewer blocked tests because test data and database provisioning are automated.

B:

This result may validate another testing scenario: A retail team's CI pipeline deploys a checkout update after compilation only, leaving high-impact payment tests for a weekly manual run. It does not establish the required result for this case: The next iteration shows fewer blocked tests because test data and database provisioning are automated.

C:

This result may validate another testing scenario: 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. It does not establish the required result for this case: The next iteration shows fewer blocked tests because test data and database provisioning are automated.