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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 16

Question 150

During a release-readiness review, a tester observes: A company plans regression testing solely by the number of developers available and ignores the release deadline and business risk. Which observation best verifies that the stated testing issue is addressed?

  1. Reproducible fixture files let another tester execute the rounding checks independently.
  2. The requirement includes cancellation behavior before implementation and associated cases are planned.
  3. A feasible schedule allocates effort to critical flows with explicit trade-offs and coverage evidence.
  4. The causal record distinguishes originating error, embedded defect, visible failure, and contributing context.

Explanation

Correct Answer

C:

This is the expected verification outcome: A feasible schedule allocates effort to critical flows with explicit trade-offs and coverage evidence. It directly checks the corrective activity (Estimate and schedule test activities using scope, objectives, constraints and risk priorities.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A project creates detailed test cases but no test data for multi-currency rounding, and claims design is fully implemented. It does not establish the required result for this case: A feasible schedule allocates effort to critical flows with explicit trade-offs and coverage evidence.

B:

This result may validate another testing scenario: A test analyst discovers a missing cancellation condition in a requirement but remains silent because code has not been written and there is no failing executable test. It does not establish the required result for this case: A feasible schedule allocates effort to critical flows with explicit trade-offs and coverage evidence.

D:

This result may validate another testing scenario: A courier tracking failure originates from a requirement that confused local and UTC times, but the incident report labels the observed wrong ETA as the root cause. It does not establish the required result for this case: A feasible schedule allocates effort to critical flows with explicit trade-offs and coverage evidence.

Question 151

During a release-readiness review, a tester observes: A company plans regression testing solely by the number of developers available and ignores the release deadline and business risk. Which testing concept or underlying cause best explains the reported problem?

  1. Test completion includes preservation, cleanup and process learning, not only stopping execution.
  2. Test analysis identifies what to test, while design specifies how to test those conditions.
  3. Repeating an unchanged test suite may no longer achieve the objective of detecting defects introduced by new behavior.
  4. Test planning establishes objectives, resources, approach and timing instead of relying on headcount alone.

Explanation

Correct Answer

D:

The most relevant explanation is: Test planning establishes objectives, resources, approach and timing instead of relying on headcount alone. This describes why the original situation (A company plans regression testing solely by the number of developers available and ignores the release deadline and business risk.) merits the response: Estimate and schedule test activities using scope, objectives, constraints and risk priorities.

Incorrect Answers

A:

This principle could explain a different testing issue: An acceptance team finishes its cases but leaves temporary data and test accounts active while declaring all test completion tasks done. The present case is better explained by: Test planning establishes objectives, resources, approach and timing instead of relying on headcount alone.

B:

This principle could explain a different testing issue: A project starts writing test scripts before identifying testable conditions, resulting in repeated steps and no clarity about the intended behavior. The present case is better explained by: Test planning establishes objectives, resources, approach and timing instead of relying on headcount alone.

C:

This principle could explain a different testing issue: A finance project runs the same ten positive-path checks on every release and calls that sufficient evidence for tax rounding changes. The present case is better explained by: Test planning establishes objectives, resources, approach and timing instead of relying on headcount alone.

Question 152

During a release-readiness review, a tester observes: A company plans regression testing solely by the number of developers available and ignores the release deadline and business risk. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Require test-data and environment readiness in test implementation reviews.
  2. Add cleanup and archive checks to release test exit procedures.
  3. Link important observed production incidents to reproducible regression cases.
  4. Revisit the test plan when project constraints or product risks change.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: Revisit the test plan when project constraints or product risks change. It addresses the principle (Test planning establishes objectives, resources, approach and timing instead of relying on headcount alone.) and can be assessed by: A feasible schedule allocates effort to critical flows with explicit trade-offs and coverage evidence.

Incorrect Answers

A:

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: Revisit the test plan when project constraints or product risks change.

B:

This preventive step mitigates a different project risk (syllabus section 1.4): An acceptance team finishes its cases but leaves temporary data and test accounts active while declaring all test completion tasks done. The targeted safeguard for the current case is: Revisit the test plan when project constraints or product risks change.

C:

This preventive step mitigates a different project risk (syllabus section 1.1): A streaming provider considers all monitoring alerts to be test cases, although the alerts only collect production symptoms after deployment. The targeted safeguard for the current case is: Revisit the test plan when project constraints or product risks change.

Question 153

A test analyst investigates the following quality concern: A test analyst discovers a missing cancellation condition in a requirement but remains silent because code has not been written and there is no failing executable test. Which testing activity or corrective action best addresses this situation?

  1. Raise the missing condition during review and request clarification while the test basis is being refined.
  2. Analyze the test basis to identify test conditions before deciding cases, data and procedures.
  3. Define the relevant coverage items and measure what portion was exercised by tests.
  4. Identify the ambiguity early through review and clarify the rule before repeating implementation or execution.

Explanation

Correct Answer

A:

The targeted action is: Raise the missing condition during review and request clarification while the test basis is being refined. It addresses the underlying software-testing principle: Static testing and test analysis can identify defects in work products without executable software. The relevant confirming evidence is: The requirement includes cancellation behavior before implementation and associated cases are planned.

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: Static testing and test analysis can identify defects in work products without executable software.

C:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure. The present problem instead depends on: Static testing and test analysis can identify defects in work products without executable software.

D:

This choice is a useful response to a different testing situation (section 1.1, What is Testing?): A retailer reviews product requirements only after code is deployed and discovers an ambiguous return window that all developers implemented differently. The present problem instead depends on: Static testing and test analysis can identify defects in work products without executable software.

Question 154

A test analyst investigates the following quality concern: A test analyst discovers a missing cancellation condition in a requirement but remains silent because code has not been written and there is no failing executable test. Which observation best verifies that the stated testing issue is addressed?

  1. Another engineer reproduces the same failure in the stated build using the defect report.
  2. The report traces the failed case to the affected price rule and impacted business obligation.
  3. Analysts clarify acceptance examples, developers maintain component tests and testers contribute independent perspectives.
  4. The requirement includes cancellation behavior before implementation and associated cases are planned.

Explanation

Correct Answer

D:

This is the expected verification outcome: The requirement includes cancellation behavior before implementation and associated cases are planned. It directly checks the corrective activity (Raise the missing condition during review and request clarification while the test basis is being refined.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A tester spots wrong stock quantities but sends only a screenshot without reproduction steps or release version. It does not establish the required result for this case: The requirement includes cancellation behavior before implementation and associated cases are planned.

B:

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: The requirement includes cancellation behavior before implementation and associated cases are planned.

C:

This result may validate another testing scenario: A cross-functional product team assigns testers sole responsibility for quality while developers ignore code-level checks and analysts accept ambiguous requirements. It does not establish the required result for this case: The requirement includes cancellation behavior before implementation and associated cases are planned.

Question 155

A test analyst investigates the following quality concern: A test analyst discovers a missing cancellation condition in a requirement but remains silent because code has not been written and there is no failing executable test. Which testing concept or underlying cause best explains the reported problem?

  1. A test execution result is meaningful only when the designed checks were performed against the expected behavior.
  2. Test implementation assembles testware and prepares cases for reliable execution.
  3. Static testing and test analysis can identify defects in work products without executable software.
  4. Exploratory testing uses skill and observation to learn, design and execute tests dynamically.

Explanation

Correct Answer

C:

The most relevant explanation is: Static testing and test analysis can identify defects in work products without executable software. This describes why the original situation (A test analyst discovers a missing cancellation condition in a requirement but remains silent because code has not been written and there is no failing executable test.) merits the response: Raise the missing condition during review and request clarification while the test basis is being refined.

Incorrect Answers

A:

This principle could explain a different testing issue: An engineer records all tests as passed because the execution script returned exit code zero, although assertions were skipped in one module. The present case is better explained by: Static testing and test analysis can identify defects in work products without executable software.

B:

This principle could explain a different testing issue: A project creates detailed test cases but no test data for multi-currency rounding, and claims design is fully implemented. The present case is better explained by: Static testing and test analysis can identify defects in work products without executable software.

D:

This principle could explain a different testing issue: An exploratory tester discovers a serious accessibility issue but a product owner dismisses the finding because no detailed scripted test case existed first. The present case is better explained by: Static testing and test analysis can identify defects in work products without executable software.

Question 156

A test analyst investigates the following quality concern: A test analyst discovers a missing cancellation condition in a requirement but remains silent because code has not been written and there is no failing executable test. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Monitor skipped assertions and test-procedure completeness in reports.
  2. Encourage early feedback to product owners on testability and incomplete requirements.
  3. Add cleanup and archive checks to release test exit procedures.
  4. Review environmental operating conditions as explicit test-basis inputs.

Explanation

Correct Answer

B:

This safeguard specifically targets the contributing cause: Encourage early feedback to product owners on testability and incomplete requirements. It addresses the principle (Static testing and test analysis can identify defects in work products without executable software.) and can be assessed by: The requirement includes cancellation behavior before implementation and associated cases are planned.

Incorrect Answers

A:

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: Encourage early feedback to product owners on testability and incomplete requirements.

C:

This preventive step mitigates a different project risk (syllabus section 1.4): An acceptance team finishes its cases but leaves temporary data and test accounts active while declaring all test completion tasks done. The targeted safeguard for the current case is: Encourage early feedback to product owners on testability and incomplete requirements.

D:

This preventive step mitigates a different project risk (syllabus section 1.2): An IoT sensor passes laboratory checks but overheats when installed inside a sealed industrial enclosure, and the team calls that proof lab testing was worthless. The targeted safeguard for the current case is: Encourage early feedback to product owners on testability and incomplete requirements.

Question 157

In a fictional application-delivery project, the team reports: A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure. Which testing activity or corrective action best addresses this situation?

  1. Define the relevant coverage items and measure what portion was exercised by tests.
  2. Complete readiness checks for environment, data, and permissions before executing the planned tests.
  3. Raise the missing condition during review and request clarification while the test basis is being refined.
  4. Qualify the results as risk-limited evidence and continue appropriate vulnerability and misuse-case testing.

Explanation

Correct Answer

A:

The targeted action is: Define the relevant coverage items and measure what portion was exercised by tests. It addresses the underlying software-testing principle: Coverage is a proportion of identified items exercised, not simply a total number of scripts. The relevant confirming evidence is: The report states which named requirements or branches are covered and which are not.

Incorrect Answers

B:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): 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 problem instead depends on: Coverage is a proportion of identified items exercised, not simply a total number of scripts.

C:

This choice is a useful response to a different testing situation (section 1.4, Test Activities, Testware and Test Roles): A test analyst discovers a missing cancellation condition in a requirement but remains silent because code has not been written and there is no failing executable test. The present problem instead depends on: Coverage is a proportion of identified items exercised, not simply a total number of scripts.

D:

This choice is a useful response to a different testing situation (section 1.3, Testing Principles): A network management tool is checked against all known requirements but the team interprets passing tests as mathematical proof that no vulnerabilities exist. The present problem instead depends on: Coverage is a proportion of identified items exercised, not simply a total number of scripts.

Question 158

In a fictional application-delivery project, the team reports: A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure. Which observation best verifies that the stated testing issue is addressed?

  1. A coverage review shows distinct conditions mapped to appropriate tests without unnecessary duplication.
  2. The report traces the failed case to the affected price rule and impacted business obligation.
  3. A revised requirement gives one unambiguous return window and related tests agree with that interpretation.
  4. The report states which named requirements or branches are covered and which are not.

Explanation

Correct Answer

D:

This is the expected verification outcome: The report states which named requirements or branches are covered and which are not. It directly checks the corrective activity (Define the relevant coverage items and measure what portion was exercised by tests.) for the described testing problem.

Incorrect Answers

A:

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 states which named requirements or branches are covered and which are not.

B:

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: The report states which named requirements or branches are covered and which are not.

C:

This result may validate another testing scenario: A retailer reviews product requirements only after code is deployed and discovers an ambiguous return window that all developers implemented differently. It does not establish the required result for this case: The report states which named requirements or branches are covered and which are not.

Question 159

In a fictional application-delivery project, the team reports: A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure. Which testing concept or underlying cause best explains the reported problem?

  1. A test execution result is meaningful only when the designed checks were performed against the expected behavior.
  2. Coverage is a proportion of identified items exercised, not simply a total number of scripts.
  3. Effective defect communication is a distinct testing activity that turns observations into actionable investigation.
  4. Exploratory testing uses skill and observation to learn, design and execute tests dynamically.

Explanation

Correct Answer

B:

The most relevant explanation is: Coverage is a proportion of identified items exercised, not simply a total number of scripts. This describes why the original situation (A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure.) merits the response: Define the relevant coverage items and measure what portion was exercised by tests.

Incorrect Answers

A:

This principle could explain a different testing issue: An engineer records all tests as passed because the execution script returned exit code zero, although assertions were skipped in one module. The present case is better explained by: Coverage is a proportion of identified items exercised, not simply a total number of scripts.

C:

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: Coverage is a proportion of identified items exercised, not simply a total number of scripts.

D:

This principle could explain a different testing issue: An exploratory tester discovers a serious accessibility issue but a product owner dismisses the finding because no detailed scripted test case existed first. The present case is better explained by: Coverage is a proportion of identified items exercised, not simply a total number of scripts.

Question 160

In a fictional application-delivery project, the team reports: A team reports 90% coverage by counting its automated scripts but cannot relate the count to requirements, risks or code structure. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Use an agreed process map and review actual handoffs in retrospectives.
  2. Require bidirectional links for high-impact requirements and their tests.
  3. Distinguish test execution, fault reporting, debugging, and confirmation testing in the team's handoff checklist.
  4. State the coverage criterion and denominator in release dashboards.

Explanation

Correct Answer

D:

This safeguard specifically targets the contributing cause: State the coverage criterion and denominator in release dashboards. It addresses the principle (Coverage is a proportion of identified items exercised, not simply a total number of scripts.) and can be assessed by: The report states which named requirements or branches are covered and which are not.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 1.4): A team calls a requirement review, test-data creation, test-run analysis and defect reporting one activity named 'execution', confusing ownership and planning. The targeted safeguard for the current case is: State the coverage criterion and denominator in release dashboards.

B:

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: State the coverage criterion and denominator in release dashboards.

C:

This preventive step mitigates a different project risk (syllabus section 1.1): A billing team treats checking an invoice against its written pricing rules as debugging, and asks testers to locate the faulty line of code before reporting any mismatch. The targeted safeguard for the current case is: State the coverage criterion and denominator in release dashboards.