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Exam Code: CTFL v4.0

Exam Name Certified Tester Foundation Level (CTFL) v4.0

Certification Provider: ISTQB

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ISTQB CTFL v4.0 Practice Test 18

Question 170

A software testing team encounters the following project situation: An exploratory tester discovers a serious accessibility issue but a product owner dismisses the finding because no detailed scripted test case existed first. Which observation best verifies that the stated testing issue is addressed?

  1. The keyboard navigation fault is independently confirmed and logged with relevant conditions.
  2. The team agrees on the observed failure and a corrective path without personal blame.
  3. A follow-up case demonstrates the unexpected behavior and identifies its business impact.
  4. The defect has a confirmed fix and a passing repeat of the initially failing case.

Explanation

Correct Answer

A:

This is the expected verification outcome: The keyboard navigation fault is independently confirmed and logged with relevant conditions. It directly checks the corrective activity (Reproduce and document the observation using clear expected behavior and accessible user impact.) for the described testing problem.

Incorrect Answers

B:

This result may validate another testing scenario: A tester confronts a developer aggressively over a defect and the ensuing dispute delays a fix for a critical shipment. It does not establish the required result for this case: The keyboard navigation fault is independently confirmed and logged with relevant conditions.

C:

This result may validate another testing scenario: A junior tester mechanically executes a checklist even after seeing a new failure pattern that the steps do not cover. It does not establish the required result for this case: The keyboard navigation fault is independently confirmed and logged with relevant conditions.

D:

This result may validate another testing scenario: A mobile banking tester documents a wrong transfer confirmation message but the project manager counts the ticket itself as a completed correction. It does not establish the required result for this case: The keyboard navigation fault is independently confirmed and logged with relevant conditions.

Question 171

A software testing team encounters the following project situation: An exploratory tester discovers a serious accessibility issue but a product owner dismisses the finding because no detailed scripted test case existed first. Which testing concept or underlying cause best explains the reported problem?

  1. Independence can reveal assumption-based blind spots but is not an absolute requirement for all testing.
  2. Tester curiosity, domain awareness and attention to detail improve detection beyond predetermined scripts.
  3. Absence of observed software defects does not guarantee useful or successful software.
  4. Exploratory testing uses skill and observation to learn, design and execute tests dynamically.

Explanation

Correct Answer

D:

The most relevant explanation is: Exploratory testing uses skill and observation to learn, design and execute tests dynamically. This describes why the original situation (An exploratory tester discovers a serious accessibility issue but a product owner dismisses the finding because no detailed scripted test case existed first.) merits the response: Reproduce and document the observation using clear expected behavior and accessible user impact.

Incorrect Answers

A:

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: Exploratory testing uses skill and observation to learn, design and execute tests dynamically.

B:

This principle could explain a different testing issue: A junior tester mechanically executes a checklist even after seeing a new failure pattern that the steps do not cover. The present case is better explained by: Exploratory testing uses skill and observation to learn, design and execute tests dynamically.

C:

This principle could explain a different testing issue: A hospital deployment passes every specified feature test, but clinical staff discover workflows that are unsafe and cannot satisfy patient handoff needs. The present case is better explained by: Exploratory testing uses skill and observation to learn, design and execute tests dynamically.

Question 172

A software testing team encounters the following project situation: An exploratory tester discovers a serious accessibility issue but a product owner dismisses the finding because no detailed scripted test case existed first. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Reserve exploration time and reward evidence-driven follow-up investigation.
  2. Provide domain onboarding and escalation routes for ambiguous findings.
  3. Provide charter objectives and evidence expectations for exploratory sessions.
  4. Include stakeholders and realistic operational scenarios when defining acceptance objectives.

Explanation

Correct Answer

C:

This safeguard specifically targets the contributing cause: Provide charter objectives and evidence expectations for exploratory sessions. It addresses the principle (Exploratory testing uses skill and observation to learn, design and execute tests dynamically.) and can be assessed by: The keyboard navigation fault is independently confirmed and logged with relevant conditions.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 1.5): A junior tester mechanically executes a checklist even after seeing a new failure pattern that the steps do not cover. The targeted safeguard for the current case is: Provide charter objectives and evidence expectations for exploratory sessions.

B:

This preventive step mitigates a different project risk (syllabus section 1.5): An outsourcing firm creates a separate test organization without domain context and praises its independence even though it mislabels legitimate billing rules as defects. The targeted safeguard for the current case is: Provide charter objectives and evidence expectations for exploratory sessions.

D:

This preventive step mitigates a different project risk (syllabus section 1.1): A healthcare scheduling team calls a product successful after every implemented feature works, though nurses cannot efficiently complete the real appointment task. The targeted safeguard for the current case is: Provide charter objectives and evidence expectations for exploratory sessions.

Question 173

During a release-readiness review, a tester observes: A highly independent external test group has no access to developers for two weeks, so straightforward failures persist despite excellent defect reports. Which testing activity or corrective action best addresses this situation?

  1. Add a second perspective through peer reviews or appropriately independent testing of critical assumptions.
  2. Create timely collaborative triage and feedback channels without losing objective test judgment.
  3. Reproduce and document the observation using clear expected behavior and accessible user impact.
  4. Evaluate whether the deliberate destructive behavior was authorized and whether the observed result met its test objective.

Explanation

Correct Answer

B:

The targeted action is: Create timely collaborative triage and feedback channels without losing objective test judgment. It addresses the underlying software-testing principle: Independence may reduce bias but can hinder communication and create distance without collaboration. The relevant confirming evidence is: Developers reproduce prioritized findings promptly while testers retain authority to report issues.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 1.5, Essential Skills and Good Practices in Testing): 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 problem instead depends on: Independence may reduce bias but can hinder communication and create distance without collaboration.

C:

This choice is a useful response to a different testing situation (section 1.5, Essential Skills and Good Practices in Testing): 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 problem instead depends on: Independence may reduce bias but can hinder communication and create distance without collaboration.

D:

This choice is a useful response to a different testing situation (section 1.1, What is Testing?): A team runs an API security test that unexpectedly deletes a staging account, then argues that any test causing impact is inherently unsuccessful. The present problem instead depends on: Independence may reduce bias but can hinder communication and create distance without collaboration.

Question 174

During a release-readiness review, a tester observes: A highly independent external test group has no access to developers for two weeks, so straightforward failures persist despite excellent defect reports. Which observation best verifies that the stated testing issue is addressed?

  1. A reviewer identifies a missing negative case not considered by the original developer.
  2. The story identifies specific misuse cases, reliability targets and observable checks.
  3. Developers reproduce prioritized findings promptly while testers retain authority to report issues.
  4. Temporary accounts are disabled and reusable artifacts plus summary results are stored in their approved locations.

Explanation

Correct Answer

C:

This is the expected verification outcome: Developers reproduce prioritized findings promptly while testers retain authority to report issues. It directly checks the corrective activity (Create timely collaborative triage and feedback channels without losing objective test judgment.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: A component's author is the only person testing it and consistently overlooks the same assumptions embedded in both code and test data. It does not establish the required result for this case: Developers reproduce prioritized findings promptly while testers retain authority to report issues.

B:

This result may validate another testing scenario: A product analyst asks a tester to prove a vague new feature is safe, but the tester never asks what 'safe' means for the business. It does not establish the required result for this case: Developers reproduce prioritized findings promptly while testers retain authority to report issues.

D:

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: Developers reproduce prioritized findings promptly while testers retain authority to report issues.

Question 175

During a release-readiness review, a tester observes: A highly independent external test group has no access to developers for two weeks, so straightforward failures persist despite excellent defect reports. Which testing concept or underlying cause best explains the reported problem?

  1. Effective testing requires communication, curiosity and constructive collaboration as well as technical skill.
  2. Independence may reduce bias but can hinder communication and create distance without collaboration.
  3. Independence does not replace domain knowledge, collaboration or a reliable test basis.
  4. Tests require an oracle or stated expected outcome to distinguish acceptable behavior from unexpected results.

Explanation

Correct Answer

B:

The most relevant explanation is: Independence may reduce bias but can hinder communication and create distance without collaboration. This describes why the original situation (A highly independent external test group has no access to developers for two weeks, so straightforward failures persist despite excellent defect reports.) merits the response: Create timely collaborative triage and feedback channels without losing objective test judgment.

Incorrect Answers

A:

This principle could explain a different testing issue: A tester confronts a developer aggressively over a defect and the ensuing dispute delays a fix for a critical shipment. The present case is better explained by: Independence may reduce bias but can hinder communication and create distance without collaboration.

C:

This principle could explain a different testing issue: An outsourcing firm creates a separate test organization without domain context and praises its independence even though it mislabels legitimate billing rules as defects. The present case is better explained by: Independence may reduce bias but can hinder communication and create distance without collaboration.

D:

This principle could explain a different testing issue: 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 case is better explained by: Independence may reduce bias but can hinder communication and create distance without collaboration.

Question 176

During a release-readiness review, a tester observes: A highly independent external test group has no access to developers for two weeks, so straightforward failures persist despite excellent defect reports. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Reserve exploration time and reward evidence-driven follow-up investigation.
  2. Define shared quality responsibilities in sprint working agreements.
  3. Balance appropriate testing independence with rapid cross-functional feedback.
  4. Require bidirectional links for high-impact requirements and their tests.

Explanation

Correct Answer

C:

This safeguard specifically targets the contributing cause: Balance appropriate testing independence with rapid cross-functional feedback. It addresses the principle (Independence may reduce bias but can hinder communication and create distance without collaboration.) and can be assessed by: Developers reproduce prioritized findings promptly while testers retain authority to report issues.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 1.5): A junior tester mechanically executes a checklist even after seeing a new failure pattern that the steps do not cover. The targeted safeguard for the current case is: Balance appropriate testing independence with rapid cross-functional feedback.

B:

This preventive step mitigates a different project risk (syllabus section 1.5): A cross-functional product team assigns testers sole responsibility for quality while developers ignore code-level checks and analysts accept ambiguous requirements. The targeted safeguard for the current case is: Balance appropriate testing independence with rapid cross-functional feedback.

D:

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: Balance appropriate testing independence with rapid cross-functional feedback.

Question 177

A test analyst investigates the following quality concern: A cross-functional product team assigns testers sole responsibility for quality while developers ignore code-level checks and analysts accept ambiguous requirements. Which testing activity or corrective action best addresses this situation?

  1. Create timely collaborative triage and feedback channels without losing objective test judgment.
  2. Add a second perspective through peer reviews or appropriately independent testing of critical assumptions.
  3. Review and vary the tests based on new code, data and suspected fault patterns.
  4. Use a whole-team approach where all disciplines support quality and appropriate test activities.

Explanation

Correct Answer

D:

The targeted action is: Use a whole-team approach where all disciplines support quality and appropriate test activities. It addresses the underlying software-testing principle: Quality is a collective team responsibility even when different people specialize in particular activities. The relevant confirming evidence is: Analysts clarify acceptance examples, developers maintain component tests and testers contribute independent perspectives.

Incorrect Answers

A:

This choice is a useful response to a different testing situation (section 1.5, Essential Skills and Good Practices in Testing): A highly independent external test group has no access to developers for two weeks, so straightforward failures persist despite excellent defect reports. The present problem instead depends on: Quality is a collective team responsibility even when different people specialize in particular activities.

B:

This choice is a useful response to a different testing situation (section 1.5, Essential Skills and Good Practices in Testing): 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 problem instead depends on: Quality is a collective team responsibility even when different people specialize in particular activities.

C:

This choice is a useful response to a different testing situation (section 1.3, Testing Principles): An online examination team runs the identical dataset every sprint and sees fewer new findings, treating this as proof the application has become defect free. The present problem instead depends on: Quality is a collective team responsibility even when different people specialize in particular activities.

Question 178

A test analyst investigates the following quality concern: A cross-functional product team assigns testers sole responsibility for quality while developers ignore code-level checks and analysts accept ambiguous requirements. Which observation best verifies that the stated testing issue is addressed?

  1. The keyboard navigation fault is independently confirmed and logged with relevant conditions.
  2. Test findings align with approved billing rules and true failures are distinguished from misunderstandings.
  3. Tests begin with usable resources and product defects are distinguished from environmental blockers.
  4. Analysts clarify acceptance examples, developers maintain component tests and testers contribute independent perspectives.

Explanation

Correct Answer

D:

This is the expected verification outcome: Analysts clarify acceptance examples, developers maintain component tests and testers contribute independent perspectives. It directly checks the corrective activity (Use a whole-team approach where all disciplines support quality and appropriate test activities.) for the described testing problem.

Incorrect Answers

A:

This result may validate another testing scenario: An exploratory tester discovers a serious accessibility issue but a product owner dismisses the finding because no detailed scripted test case existed first. It does not establish the required result for this case: Analysts clarify acceptance examples, developers maintain component tests and testers contribute independent perspectives.

B:

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: Analysts clarify acceptance examples, developers maintain component tests and testers contribute independent perspectives.

C:

This result may validate another testing scenario: 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. It does not establish the required result for this case: Analysts clarify acceptance examples, developers maintain component tests and testers contribute independent perspectives.

Question 179

A test analyst investigates the following quality concern: A cross-functional product team assigns testers sole responsibility for quality while developers ignore code-level checks and analysts accept ambiguous requirements. Which testing concept or underlying cause best explains the reported problem?

  1. Independence may reduce bias but can hinder communication and create distance without collaboration.
  2. Independence can reveal assumption-based blind spots but is not an absolute requirement for all testing.
  3. Testing depends on context, including domain, risk, constraints and development lifecycle.
  4. Quality is a collective team responsibility even when different people specialize in particular activities.

Explanation

Correct Answer

D:

The most relevant explanation is: Quality is a collective team responsibility even when different people specialize in particular activities. This describes why the original situation (A cross-functional product team assigns testers sole responsibility for quality while developers ignore code-level checks and analysts accept ambiguous requirements.) merits the response: Use a whole-team approach where all disciplines support quality and appropriate test activities.

Incorrect Answers

A:

This principle could explain a different testing issue: A highly independent external test group has no access to developers for two weeks, so straightforward failures persist despite excellent defect reports. The present case is better explained by: Quality is a collective team responsibility even when different people specialize in particular activities.

B:

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: Quality is a collective team responsibility even when different people specialize in particular activities.

C:

This principle could explain a different testing issue: A startup insists the same scripted suite is appropriate for a prototype game, regulated payment processor, and embedded vehicle controller. The present case is better explained by: Quality is a collective team responsibility even when different people specialize in particular activities.

Question 180

A test analyst investigates the following quality concern: A cross-functional product team assigns testers sole responsibility for quality while developers ignore code-level checks and analysts accept ambiguous requirements. Which repeatable testing practice most directly reduces recurrence of this problem?

  1. Balance appropriate testing independence with rapid cross-functional feedback.
  2. Define shared quality responsibilities in sprint working agreements.
  3. Provide domain onboarding and escalation routes for ambiguous findings.
  4. Require locale-specific fixtures and causal evidence before closing internationalization incidents.

Explanation

Correct Answer

B:

This safeguard specifically targets the contributing cause: Define shared quality responsibilities in sprint working agreements. It addresses the principle (Quality is a collective team responsibility even when different people specialize in particular activities.) and can be assessed by: Analysts clarify acceptance examples, developers maintain component tests and testers contribute independent perspectives.

Incorrect Answers

A:

This preventive step mitigates a different project risk (syllabus section 1.5): A highly independent external test group has no access to developers for two weeks, so straightforward failures persist despite excellent defect reports. The targeted safeguard for the current case is: Define shared quality responsibilities in sprint working agreements.

C:

This preventive step mitigates a different project risk (syllabus section 1.5): An outsourcing firm creates a separate test organization without domain context and praises its independence even though it mislabels legitimate billing rules as defects. The targeted safeguard for the current case is: Define shared quality responsibilities in sprint working agreements.

D:

This preventive step mitigates a different project risk (syllabus section 1.2): An airport kiosk gives wrong currency conversions only when a decimal separator uses a comma, yet defect analysis stops at the rounding function. The targeted safeguard for the current case is: Define shared quality responsibilities in sprint working agreements.