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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 24

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.

Question 231

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 concept or underlying cause best explains the reported problem?

  1. Sequential-model alignment can support early test specification and feedback despite later dynamic execution.
  2. Delivery performance and tested product quality are related but distinct dimensions of an SDLC.
  3. Retrospectives support process improvement only when findings become acted-on changes.
  4. Maintenance testing may be necessary after environment changes as well as application code changes.

Explanation

Correct Answer

C:

The most relevant explanation is: Retrospectives support process improvement only when findings become acted-on changes. This describes why the original situation (An agile retrospective repeatedly lists environment delays but no corrective action is owned, so every iteration loses time to the same unavailable test database.) merits the response: Convert the observation into an assigned improvement experiment with measurable success criteria.

Incorrect Answers

A:

This principle could explain a different testing issue: A designer claims the V-model prohibits all iterative feedback and cannot support early test planning because diagrams put testing boxes after coding. The present case is better explained by: Retrospectives support process improvement only when findings become acted-on changes.

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

D:

This principle could explain a different testing issue: A logistics company patches a production operating system and assumes maintenance testing is unnecessary because no application source code changed. The present case is better explained by: Retrospectives support process improvement only when findings become acted-on changes.

Question 232

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 repeatable testing practice most directly reduces recurrence of this problem?

  1. Record a measurable test-process improvement action during each relevant retrospective.
  2. Use meaningful quality feedback in DevOps performance reviews.
  3. Include negative boundary and error cases in interface contracts.
  4. Track improvement actions through later iteration reviews and test readiness metrics.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Track improvement actions through later iteration reviews and test readiness metrics. It addresses the principle (Retrospectives support process improvement only when findings become acted-on changes.) and can be assessed by: The next iteration shows fewer blocked tests because test data and database provisioning are automated.

Incorrect Answers

A:

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: Track improvement actions through later iteration reviews and test readiness metrics.

B:

This preventive step mitigates a different project risk (syllabus section 2.1): An organization assesses software testing success by deployment frequency alone, with no indicator of escaped high-severity failures after releases. The targeted safeguard for the current case is: Track improvement actions through later iteration reviews and test readiness metrics.

C:

This preventive step mitigates a different project risk (syllabus section 2.2): An authentication library passes isolated component checks but fails when the mobile app calls it with a missing refresh token. The targeted safeguard for the current case is: Track improvement actions through later iteration reviews and test readiness metrics.

Question 233

A tester is asked to evaluate the following situation: 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. 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. Add fast relevant automated checks to continuous integration and a staged release gate for higher-level tests.
  3. Plan maintenance testing focused on changed data structures and unchanged business operations that could be affected.
  4. Combine appropriately scoped component, integration and system checks to catch faults where they arise.

Explanation

Correct Answer

D:

The targeted action is: Combine appropriately scoped component, integration and system checks to catch faults where they arise. It addresses the underlying software-testing principle: Different test levels provide complementary feedback on different objects and interfaces. The relevant confirming evidence is: The faulty function fails a fast component test while end-to-end coverage verifies its user impact.

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: Different test levels provide complementary feedback on different objects and interfaces.

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 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: Different test levels provide complementary feedback on different objects and interfaces.

C:

This choice is a useful response to a different testing situation (section 2.2, Test Levels and Test Types): A bank migrates a database and executes only confirmation tests of known previous defects, overlooking transactions newly broken by the migration. The present problem instead depends on: Different test levels provide complementary feedback on different objects and interfaces.

Question 234

A tester is asked to evaluate the following situation: 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. Which observation best verifies that the stated testing issue is addressed?

  1. The acceptance example is connected to an executable check that fails when the business rule is violated.
  2. Designers address capacity risks early and later environment tests verify representative throughput.
  3. Supported clients use the replacement endpoint and obsolete calls fail in the documented manner.
  4. The faulty function fails a fast component test while end-to-end coverage verifies its user impact.

Explanation

Correct Answer

D:

This is the expected verification outcome: The faulty function fails a fast component test while end-to-end coverage verifies its user impact. It directly checks the corrective activity (Combine appropriately scoped component, integration and system checks to catch faults where they arise.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A project team interprets a written Gherkin scenario as an executable automated test, although no implementation links it to product behavior. It does not establish the required result for this case: The faulty function fails a fast component test while end-to-end coverage verifies its user impact.

B:

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: The faulty function fails a fast component test while end-to-end coverage verifies its user impact.

C:

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: The faulty function fails a fast component test while end-to-end coverage verifies its user impact.

Question 235

A tester is asked to evaluate the following situation: 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. Which testing concept or underlying cause best explains the reported problem?

  1. Behavior-driven development encourages shared examples but automation requires concrete test implementation.
  2. Testing cost and feedback speed depend partly on the selected level and the test objective.
  3. Different test levels provide complementary feedback on different objects and interfaces.
  4. Non-functional testing evaluates quality characteristics such as usability and accessibility.

Explanation

Correct Answer

C:

The most relevant explanation is: Different test levels provide complementary feedback on different objects and interfaces. This describes why the original situation (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.) merits the response: Combine appropriately scoped component, integration and system checks to catch faults where they arise.

Incorrect Answers

A:

This principle could explain a different testing issue: A project team interprets a written Gherkin scenario as an executable automated test, although no implementation links it to product behavior. The present case is better explained by: Different test levels provide complementary feedback on different objects and interfaces.

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: Different test levels provide complementary feedback on different objects and interfaces.

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: Different test levels provide complementary feedback on different objects and interfaces.

Question 236

A tester is asked to evaluate the following situation: 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. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Review test oracles and run a red state before accepting each new TDD case.
  2. Track improvement actions through later iteration reviews and test readiness metrics.
  3. Match coverage claims to the technique and metric actually used.
  4. Maintain a proportionate multi-level test portfolio.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Maintain a proportionate multi-level test portfolio. It addresses the principle (Different test levels provide complementary feedback on different objects and interfaces.) and can be assessed by: The faulty function fails a fast component test while end-to-end coverage verifies its user impact.

Incorrect Answers

A:

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: Maintain a proportionate multi-level test portfolio.

B:

This preventive step mitigates a different project risk (syllabus section 2.1): An agile retrospective repeatedly lists environment delays but no corrective action is owned, so every iteration loses time to the same unavailable test database. The targeted safeguard for the current case is: Maintain a proportionate multi-level test portfolio.

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: Maintain a proportionate multi-level test portfolio.

Question 237

A quality engineering exercise presents this condition: A designer claims the V-model prohibits all iterative feedback and cannot support early test planning because diagrams put testing boxes after coding. Which testing activity or corrective action best addresses this situation?

  1. Introduce requirements collaboration and static reviews alongside dynamic automation.
  2. Clarify desired behavior and write a failing automated component test before coding the solution.
  3. Test critical workflows in the new operational environment before declaring migration complete.
  4. Relate each planned test level to suitable development work products and update tests as work progresses.

Explanation

Correct Answer

D:

The targeted action is: Relate each planned test level to suitable development work products and update tests as work progresses. It addresses the underlying software-testing principle: Sequential-model alignment can support early test specification and feedback despite later dynamic execution. The relevant confirming evidence is: System test design begins from system requirements even while development is ongoing.

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 company uses nightly scripted browser tests but never reviews requirements, so everyone repeatedly automates checks for a misunderstood customer workflow. The present problem instead depends on: Sequential-model alignment can support early test specification and feedback despite later dynamic execution.

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 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: Sequential-model alignment can support early test specification and feedback despite later dynamic execution.

C:

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: Sequential-model alignment can support early test specification and feedback despite later dynamic execution.

Question 238

A quality engineering exercise presents this condition: A designer claims the V-model prohibits all iterative feedback and cannot support early test planning because diagrams put testing boxes after coding. Which observation best verifies that the stated testing issue is addressed?

  1. The next iteration includes a targeted check that prevents the repeated defect class.
  2. Requirements and designs receive early feedback while integration and acceptance testing retain their planned places.
  3. Representative historical filing fixtures produce correct expected outcomes under the new runtime.
  4. System test design begins from system requirements even while development is ongoing.

Explanation

Correct Answer

D:

This is the expected verification outcome: System test design begins from system requirements even while development is ongoing. It directly checks the corrective activity (Relate each planned test level to suitable development work products and update tests as work progresses.) for the described testing problem.

Incorrect Answers

A:

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: System test design begins from system requirements even while development is ongoing.

B:

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: System test design begins from system requirements even while development is ongoing.

C:

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: System test design begins from system requirements even while development is ongoing.

Question 239

A quality engineering exercise presents this condition: A designer claims the V-model prohibits all iterative feedback and cannot support early test planning because diagrams put testing boxes after coding. Which testing concept or underlying cause best explains the reported problem?

  1. Delivery performance and tested product quality are related but distinct dimensions of an SDLC.
  2. Feedback from previous iterations can guide continuous improvements to both product and testing process.
  3. White-box coverage cannot reveal missing required behaviors that were never implemented.
  4. Sequential-model alignment can support early test specification and feedback despite later dynamic execution.

Explanation

Correct Answer

D:

The most relevant explanation is: Sequential-model alignment can support early test specification and feedback despite later dynamic execution. This describes why the original situation (A designer claims the V-model prohibits all iterative feedback and cannot support early test planning because diagrams put testing boxes after coding.) merits the response: Relate each planned test level to suitable development work products and update tests as work progresses.

Incorrect Answers

A:

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: Sequential-model alignment can support early test specification and feedback despite later dynamic execution.

B:

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: Sequential-model alignment can support early test specification and feedback despite later dynamic execution.

C:

This principle could explain a different testing issue: An insurance team executes code-based branch tests exclusively and overlooks a legally required policy exception absent from the implementation. The present case is better explained by: Sequential-model alignment can support early test specification and feedback despite later dynamic execution.

Question 240

A quality engineering exercise presents this condition: A designer claims the V-model prohibits all iterative feedback and cannot support early test planning because diagrams put testing boxes after coding. 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. Assign early analysis and subsequent executable checks to the correct delivery stages.
  3. Verify that each required executable specification has functioning step definitions and assertions.
  4. Make accessibility criteria and assistive technology part of system acceptance.

Explanation

Correct Answer

A:

This safeguard specifically targets the contributing cause: Link validation activities to the lifecycle artifacts that provide their test basis. It addresses the principle (Sequential-model alignment can support early test specification and feedback despite later dynamic execution.) and can be assessed by: System test design begins from system requirements even while development is ongoing.

Incorrect Answers

B:

This preventive step mitigates a different project risk (syllabus section 2.1): 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. The targeted safeguard for the current case is: Link validation activities to the lifecycle artifacts that provide their test basis.

C:

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: Link validation activities to the lifecycle artifacts that provide their test basis.

D:

This preventive step mitigates a different project risk (syllabus section 2.2): 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 targeted safeguard for the current case is: Link validation activities to the lifecycle artifacts that provide their test basis.