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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 13

Question 120

A quality engineering exercise presents this condition: A tax service shows repeated successful automated results but its external rate provider changes an API contract overnight. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Combine historical defect data with current architectural and impact analysis.
  2. Involve actual users and context-driven acceptance tests in feature planning.
  3. Monitor external changes and maintain contract fixtures as part of test maintenance.
  4. Use a structured issue template with environment and traceable evidence fields.

Explanation

Correct Answer

C:

This safeguard specifically targets the contributing cause: Monitor external changes and maintain contract fixtures as part of test maintenance. It addresses the principle (Test suites can become stale as dependencies and their contracts change.) and can be assessed by: A new schema incompatibility is caught by updated checks instead of appearing as wrong customer tax.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 1.3): A mobile game team decides to test only its newest animations after finding many prior defects there, overlooking a newly connected payment component. The targeted safeguard for the current case is: Monitor external changes and maintain contract fixtures as part of test maintenance.

B:

This preventive step mitigates a different project risk (syllabus section 1.3): A hospital deployment passes every specified feature test, but clinical staff discover workflows that are unsafe and cannot satisfy patient handoff needs. The targeted safeguard for the current case is: Monitor external changes and maintain contract fixtures as part of test maintenance.

D:

This preventive step mitigates a different project risk (syllabus section 1.4): A tester spots wrong stock quantities but sends only a screenshot without reproduction steps or release version. The targeted safeguard for the current case is: Monitor external changes and maintain contract fixtures as part of test maintenance.

Question 121

A software testing team encounters the following project situation: A team executes a price-change test but cannot tell which requirement or risk the test covers, so auditors cannot verify why it exists. Which testing activity or corrective action best addresses this situation?

  1. Link the test condition and case to its source requirement and related risk.
  2. Analyze the test basis to identify test conditions before deciding cases, data and procedures.
  3. Distinguish test planning, monitoring, analysis, design, implementation, execution and completion work.
  4. Derive the expected amount from the applicable rule before running the input and compare it with the actual amount.

Explanation

Correct Answer

A:

The targeted action is: Link the test condition and case to its source requirement and related risk. It addresses the underlying software-testing principle: Traceability between test basis and testware supports coverage analysis and impact assessment. The relevant confirming evidence is: The report traces the failed case to the affected price rule and impacted business obligation.

Incorrect Answers

B:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): A project starts writing test scripts before identifying testable conditions, resulting in repeated steps and no clarity about the intended behavior. The present problem instead depends on: Traceability between test basis and testware supports coverage analysis and impact assessment.

C:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): A team calls a requirement review, test-data creation, test-run analysis and defect reporting one activity named 'execution', confusing ownership and planning. The present problem instead depends on: Traceability between test basis and testware supports coverage analysis and impact assessment.

D:

This choice is a useful response to a different testing situation (section 1.1, What is Testing?): A delivery-app tester executes scripted checks but does not record the expected result for a promotional fee calculation, so a different fee is accepted as correct. The present problem instead depends on: Traceability between test basis and testware supports coverage analysis and impact assessment.

Question 122

A software testing team encounters the following project situation: A team executes a price-change test but cannot tell which requirement or risk the test covers, so auditors cannot verify why it exists. Which observation best verifies that the stated testing issue is addressed?

  1. The report traces the failed case to the affected price rule and impacted business obligation.
  2. Temporary accounts are disabled and reusable artifacts plus summary results are stored in their approved locations.
  3. A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication.
  4. The saved case records test data, the expected calculation, observed total, and pass or fail decision.

Explanation

Correct Answer

A:

This is the expected verification outcome: The report traces the failed case to the affected price rule and impacted business obligation. It directly checks the corrective activity (Link the test condition and case to its source requirement and related risk.) for the described testing problem.

Incorrect Answers

B:

This result may validate another testing scenario: An acceptance team finishes its cases but leaves temporary data and test accounts active while declaring all test completion tasks done. It does not establish the required result for this case: The report traces the failed case to the affected price rule and impacted business obligation.

C:

This result may validate another testing scenario: A project starts writing test scripts before identifying testable conditions, resulting in repeated steps and no clarity about the intended behavior. It does not establish the required result for this case: The report traces the failed case to the affected price rule and impacted business obligation.

D:

This result may validate another testing scenario: A delivery-app tester executes scripted checks but does not record the expected result for a promotional fee calculation, so a different fee is accepted as correct. It does not establish the required result for this case: The report traces the failed case to the affected price rule and impacted business obligation.

Question 123

A software testing team encounters the following project situation: A team executes a price-change test but cannot tell which requirement or risk the test covers, so auditors cannot verify why it exists. Which testing concept or underlying cause best explains the reported problem?

  1. Effective defect communication is a distinct testing activity that turns observations into actionable investigation.
  2. Test planning establishes objectives, resources, approach and timing instead of relying on headcount alone.
  3. Traceability between test basis and testware supports coverage analysis and impact assessment.
  4. Independence can reveal assumption-based blind spots but is not an absolute requirement for all testing.

Explanation

Correct Answer

C:

The most relevant explanation is: Traceability between test basis and testware supports coverage analysis and impact assessment. This describes why the original situation (A team executes a price-change test but cannot tell which requirement or risk the test covers, so auditors cannot verify why it exists.) merits the response: Link the test condition and case to its source requirement and related risk.

Incorrect Answers

A:

This principle could explain a different testing issue: A tester spots wrong stock quantities but sends only a screenshot without reproduction steps or release version. The present case is better explained by: Traceability between test basis and testware supports coverage analysis and impact assessment.

B:

This principle could explain a different testing issue: A company plans regression testing solely by the number of developers available and ignores the release deadline and business risk. The present case is better explained by: Traceability between test basis and testware supports coverage analysis and impact assessment.

D:

This principle could explain a different testing issue: A component's author is the only person testing it and consistently overlooks the same assumptions embedded in both code and test data. The present case is better explained by: Traceability between test basis and testware supports coverage analysis and impact assessment.

Question 124

A software testing team encounters the following project situation: A team executes a price-change test but cannot tell which requirement or risk the test covers, so auditors cannot verify why it exists. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. State the coverage criterion and denominator in release dashboards.
  2. Require bidirectional links for high-impact requirements and their tests.
  3. Require test-data and environment readiness in test implementation reviews.
  4. Apply shift-left practices to design and security-critical assumptions.

Explanation

Correct Answer

B:

This safeguard specifically targets the contributing cause: Require bidirectional links for high-impact requirements and their tests. It addresses the principle (Traceability between test basis and testware supports coverage analysis and impact assessment.) and can be assessed by: The report traces the failed case to the affected price rule and impacted business obligation.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 1.4): A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure. The targeted safeguard for the current case is: Require bidirectional links for high-impact requirements and their tests.

C:

This preventive step mitigates a different project risk (syllabus section 1.4): A project creates detailed test cases but no test data for multi-currency rounding, and claims design is fully implemented. The targeted safeguard for the current case is: Require bidirectional links for high-impact requirements and their tests.

D:

This preventive step mitigates a different project risk (syllabus section 1.3): A bank queues all security testing for the final release weekend, and a permissions architecture defect forces a redesign. The targeted safeguard for the current case is: Require bidirectional links for high-impact requirements and their tests.

Question 125

During a release-readiness review, a tester observes: A project starts writing test scripts before identifying testable conditions, resulting in repeated steps and no clarity about the intended behavior. Which testing activity or corrective action best addresses this situation?

  1. Analyze the test basis to identify test conditions before deciding cases, data and procedures.
  2. Estimate and schedule test activities using scope, objectives, constraints and risk priorities.
  3. Report reproducible conditions, expected and actual results, build identity and relevant evidence.
  4. Include response-time and other relevant quality characteristics in the test objectives.

Explanation

Correct Answer

A:

The targeted action is: Analyze the test basis to identify test conditions before deciding cases, data and procedures. It addresses the underlying software-testing principle: Test analysis identifies what to test, while design specifies how to test those conditions. The relevant confirming evidence is: A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication.

Incorrect Answers

B:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): A company plans regression testing solely by the number of developers available and ignores the release deadline and business risk. The present problem instead depends on: Test analysis identifies what to test, while design specifies how to test those conditions.

C:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): A tester spots wrong stock quantities but sends only a screenshot without reproduction steps or release version. The present problem instead depends on: Test analysis identifies what to test, while design specifies how to test those conditions.

D:

This choice is a useful response to a different testing situation (section 1.2, Why is Testing Necessary?): A weather-app team measures software quality solely by the total defects found, overlooking a slow startup that users abandon. The present problem instead depends on: Test analysis identifies what to test, while design specifies how to test those conditions.

Question 126

During a release-readiness review, a tester observes: A project starts writing test scripts before identifying testable conditions, resulting in repeated steps and no clarity about the intended behavior. Which observation best verifies that the stated testing issue is addressed?

  1. The report traces the failed case to the affected price rule and impacted business obligation.
  2. A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication.
  3. Test logs identify executed assertions and expected outcomes for each recorded pass.
  4. A reproduction with the comma locale isolates the conversion and formatting fault.

Explanation

Correct Answer

B:

This is the expected verification outcome: A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication. It directly checks the corrective activity (Analyze the test basis to identify test conditions before deciding cases, data and procedures.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A team executes a price-change test but cannot tell which requirement or risk the test covers, so auditors cannot verify why it exists. It does not establish the required result for this case: A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication.

C:

This result may validate another testing scenario: An engineer records all tests as passed because the execution script returned exit code zero, although assertions were skipped in one module. It does not establish the required result for this case: A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication.

D:

This result may validate another testing scenario: An airport kiosk gives wrong currency conversions only when a decimal separator uses a comma, yet defect analysis stops at the rounding function. It does not establish the required result for this case: A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication.

Question 127

During a release-readiness review, a tester observes: A project starts writing test scripts before identifying testable conditions, resulting in repeated steps and no clarity about the intended behavior. Which testing concept or underlying cause best explains the reported problem?

  1. Test implementation and execution depend on prepared procedures, data and the required execution environment.
  2. Coverage is a proportion of identified items exercised, not simply a total number of scripts.
  3. Test analysis identifies what to test, while design specifies how to test those conditions.
  4. Defects often cluster in a small number of components or functions rather than being evenly distributed.

Explanation

Correct Answer

C:

The most relevant explanation is: Test analysis identifies what to test, while design specifies how to test those conditions. This describes why the original situation (A project starts writing test scripts before identifying testable conditions, resulting in repeated steps and no clarity about the intended behavior.) merits the response: Analyze the test basis to identify test conditions before deciding cases, data and procedures.

Incorrect Answers

A:

This principle could explain a different testing issue: A release manager orders test execution before the shared environment, data and access rights exist and then treats every infrastructure failure as a product defect. The present case is better explained by: Test analysis identifies what to test, while design specifies how to test those conditions.

B:

This principle could explain a different testing issue: A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure. The present case is better explained by: Test analysis identifies what to test, while design specifies how to test those conditions.

D:

This principle could explain a different testing issue: A delivery startup finds no defects in hundreds of low-value footer checks while its checkout flow continues losing orders. The present case is better explained by: Test analysis identifies what to test, while design specifies how to test those conditions.

Question 128

During a release-readiness review, a tester observes: A project starts writing test scripts before identifying testable conditions, resulting in repeated steps and no clarity about the intended behavior. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Use a test analysis and design review before automating large suites.
  2. Monitor skipped assertions and test-procedure completeness in reports.
  3. Require bidirectional links for high-impact requirements and their tests.
  4. Maintain a clear artifact hierarchy from objectives to conditions, cases, and procedures.

Explanation

Correct Answer

A:

This safeguard specifically targets the contributing cause: Use a test analysis and design review before automating large suites. It addresses the principle (Test analysis identifies what to test, while design specifies how to test those conditions.) and can be assessed by: A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication.

Incorrect Answers

B:

This preventive step mitigates a different project risk (syllabus section 1.4): An engineer records all tests as passed because the execution script returned exit code zero, although assertions were skipped in one module. The targeted safeguard for the current case is: Use a test analysis and design review before automating large suites.

C:

This preventive step mitigates a different project risk (syllabus section 1.4): A team executes a price-change test but cannot tell which requirement or risk the test covers, so auditors cannot verify why it exists. The targeted safeguard for the current case is: Use a test analysis and design review before automating large suites.

D:

This preventive step mitigates a different project risk (syllabus section 1.1): A warehouse team treats a test strategy statement and the executable test cases as interchangeable, leaving no defined approach to choosing cases. The targeted safeguard for the current case is: Use a test analysis and design review before automating large suites.

Question 129

A test analyst investigates the following quality concern: A release manager orders test execution before the shared environment, data and access rights exist and then treats every infrastructure failure as a product defect. Which testing activity or corrective action best addresses this situation?

  1. Prepare necessary input fixtures, expected results, and execution instructions for each selected case.
  2. Review the changed test basis and perform impact analysis to select needed updates and execution.
  3. Use critical thinking to investigate the observation and design a bounded additional test.
  4. Complete readiness checks for environment, data, and permissions before executing the planned tests.

Explanation

Correct Answer

D:

The targeted action is: Complete readiness checks for environment, data, and permissions before executing the planned tests. It addresses the underlying software-testing principle: Test implementation and execution depend on prepared procedures, data and the required execution environment. The relevant confirming evidence is: Tests begin with usable resources and product defects are distinguished from environmental blockers.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): A project creates detailed test cases but no test data for multi-currency rounding, and claims design is fully implemented. The present problem instead depends on: Test implementation and execution depend on prepared procedures, data and the required execution environment.

B:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): A tester receives a new feature after a sprint begins but continues executing only tests from the previous backlog without updating the intended scope. The present problem instead depends on: Test implementation and execution depend on prepared procedures, data and the required execution environment.

C:

This choice is a useful response to a different testing situation (section 1.5, Essential Skills and Good Practices in Testing): A junior tester mechanically executes a checklist even after seeing a new failure pattern that the steps do not cover. The present problem instead depends on: Test implementation and execution depend on prepared procedures, data and the required execution environment.

Question 130

A test analyst investigates the following quality concern: A release manager orders test execution before the shared environment, data and access rights exist and then treats every infrastructure failure as a product defect. Which observation best verifies that the stated testing issue is addressed?

  1. Tests begin with usable resources and product defects are distinguished from environmental blockers.
  2. Test logs identify executed assertions and expected outcomes for each recorded pass.
  3. The report states which named requirements or branches are covered and which are not.
  4. Test findings align with approved billing rules and true failures are distinguished from misunderstandings.

Explanation

Correct Answer

A:

This is the expected verification outcome: Tests begin with usable resources and product defects are distinguished from environmental blockers. It directly checks the corrective activity (Complete readiness checks for environment, data, and permissions before executing the planned tests.) for the described testing problem.

Incorrect Answers

B:

This result may validate another testing scenario: An engineer records all tests as passed because the execution script returned exit code zero, although assertions were skipped in one module. It does not establish the required result for this case: Tests begin with usable resources and product defects are distinguished from environmental blockers.

C:

This result may validate another testing scenario: A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure. It does not establish the required result for this case: Tests begin with usable resources and product defects are distinguished from environmental blockers.

D:

This result may validate another testing scenario: An outsourcing firm creates a separate test organization without domain context and praises its independence even though it mislabels legitimate billing rules as defects. It does not establish the required result for this case: Tests begin with usable resources and product defects are distinguished from environmental blockers.