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CompTIA SecurityX CAS-005 Practice Test 14

Question 130

An internal AI chatbot exposes sensitive engineering designs to a third-party model endpoint without employees realizing their prompts are retained. Which technical inference is supported by the described behavior?

  1. An AI service's input and retention arrangements can transfer confidential data beyond approved organizational boundaries.
  2. A third-party retention policy cannot affect client confidential information
  3. TLS makes the external model provider an authorized data processor
  4. Only downloadable files can disclose sensitive data to AI services

Explanation

Correct Answer

A:

The observed facts point to the causal security principle: An AI service's input and retention arrangements can transfer confidential data beyond approved organizational boundaries. This is why the proportionate implementation response is classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy. The other answers either invent additional facts or mistake documentation or an adjacent safeguard for the actual cause.

Incorrect Answers

B:

The statement 'A third-party retention policy cannot affect client confidential information' does not explain the observed exposure. The absolute conclusion claims a guarantee that the scenario and the technical trust boundary do not support. The evidence instead supports: An AI service's input and retention arrangements can transfer confidential data beyond approved organizational boundaries. This distinction determines why classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy.

C:

The statement 'TLS makes the external model provider an authorized data processor' does not explain the observed exposure. It ascribes the exposure to a different or unsupported cause instead of the failing trust, lifecycle, data, or inspection boundary identified in the facts. The evidence instead supports: An AI service's input and retention arrangements can transfer confidential data beyond approved organizational boundaries. This distinction determines why classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy.

D:

The statement 'Only downloadable files can disclose sensitive data to AI services' does not explain the observed exposure. It incorrectly treats a proxy, credential, or partial control as interchangeable with the missing evidence or authorization check. The evidence instead supports: An AI service's input and retention arrangements can transfer confidential data beyond approved organizational boundaries. This distinction determines why classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy.

Question 131

An internal AI chatbot exposes sensitive engineering designs to a third-party model endpoint without employees realizing their prompts are retained. Which finding is the strongest acceptance evidence for the recommended control?

  1. Test prompts containing tagged secrets are blocked or redacted, and approved telemetry identifies the destination service.
  2. The user is warned but still can paste full engineering diagrams into prohibited services
  3. A tagged secret enters the external model endpoint unredacted
  4. No telemetry identifies which SaaS model stored a sensitive prompt

Explanation

Correct Answer

A:

The decisive acceptance evidence is: Test prompts containing tagged secrets are blocked or redacted, and approved telemetry identifies the destination service. It demonstrates that the intervention—Classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy—works in the scenario, rather than showing only a report, nominal configuration, or absence of alerts. An adverse test result would require remediation, not signoff.

Incorrect Answers

B:

Observing 'The user is warned but still can paste full engineering diagrams into prohibited services' would not prove that the proposed security fix succeeded. This is a counterexample to successful enforcement: a prohibited action still succeeds or an expected boundary remains untested. To accept the remediation, the test must demonstrate: Test prompts containing tagged secrets are blocked or redacted, and approved telemetry identifies the destination service. That measures the actual result of classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy.

C:

Observing 'A tagged secret enters the external model endpoint unredacted' would not prove that the proposed security fix succeeded. This is a proxy metric or adverse observation; it does not test both the intended security boundary and the permitted business function. To accept the remediation, the test must demonstrate: Test prompts containing tagged secrets are blocked or redacted, and approved telemetry identifies the destination service. That measures the actual result of classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy.

D:

Observing 'No telemetry identifies which SaaS model stored a sensitive prompt' would not prove that the proposed security fix succeeded. This is a proxy metric or adverse observation; it does not test both the intended security boundary and the permitted business function. To accept the remediation, the test must demonstrate: Test prompts containing tagged secrets are blocked or redacted, and approved telemetry identifies the destination service. That measures the actual result of classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy.

Question 132

An internal AI chatbot exposes sensitive engineering designs to a third-party model endpoint without employees realizing their prompts are retained. Which continuing exposure should not be dismissed by the response team?

  1. A file-size limit may stop large documents but still allow smaller sensitive text prompts.
  2. A tenant-specific cloud exception might authorize an inappropriate destination.
  3. An employee may paste a benign text string that triggers an unnecessary DLP alert.
  4. Screenshots or paraphrased confidential material may evade simple pattern-based DLP rules.

Explanation

Correct Answer

D:

The remedy cannot eliminate every downstream risk. The directly relevant remaining issue is: Screenshots or paraphrased confidential material may evade simple pattern-based DLP rules. This needs monitoring or a separate follow-up after implementing Classify and minimize prompt content, block prohibited external sharing with DLP, and publish enforceable model-usage policy.

Incorrect Answers

A:

Input-size bounds are insufficient but the keyed evasion concerns screenshots or paraphrases escaping simple pattern matching.

B:

Tenant control should be reviewed, but the immediate residual is content that avoids sensitive-pattern recognition.

C:

False positives affect user experience, whereas the continuing leak vector involves unrecognized sensitive content forms.

Question 133

A hiring model is used to reject applicants automatically but the organization cannot reconstruct why specific decisions were made. Which security action is the most defensible next step for this situation?

  1. Replace human appeal with a generic AI-generated justification
  2. Allow unexplained rejections because prediction accuracy is high
  3. Retain no decision log because the model is proprietary
  4. Require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

Explanation

Correct Answer

D:

The case shows: A hiring model is used to reject applicants automatically but the organization cannot reconstruct why specific decisions were made. The preferred intervention—Require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk—directly corrects that deficiency. The security reason is that non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high. It is scoped to an enforceable control decision, unlike a policy label or unrelated improvement.

Incorrect Answers

A:

Selecting 'Replace human appeal with a generic AI-generated justification' would not be the best response to this case. It may affect an adjacent security task, but it does not supply the complete boundary-specific intervention demanded by these facts. The actual gap is: Non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high. The more defensible control is Require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

B:

Selecting 'Allow unexplained rejections because prediction accuracy is high' would not be the best response to this case. It may affect an adjacent security task, but it does not supply the complete boundary-specific intervention demanded by these facts. The actual gap is: Non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high. The more defensible control is Require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

C:

Selecting 'Retain no decision log because the model is proprietary' would not be the best response to this case. It may affect an adjacent security task, but it does not supply the complete boundary-specific intervention demanded by these facts. The actual gap is: Non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high. The more defensible control is Require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

Question 134

A hiring model is used to reject applicants automatically but the organization cannot reconstruct why specific decisions were made. Which technical inference is supported by the described behavior?

  1. Average model accuracy proves every individual hiring decision is fair
  2. An applicant appeal is unnecessary when the model has many parameters
  3. Non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high.
  4. Black-box scoring removes the need for accountability in employment decisions

Explanation

Correct Answer

C:

The observed facts point to the causal security principle: Non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high. This is why the proportionate implementation response is require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk. The other answers either invent additional facts or mistake documentation or an adjacent safeguard for the actual cause.

Incorrect Answers

A:

The statement 'Average model accuracy proves every individual hiring decision is fair' does not explain the observed exposure. The absolute conclusion claims a guarantee that the scenario and the technical trust boundary do not support. The evidence instead supports: Non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high. This distinction determines why require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

B:

The statement 'An applicant appeal is unnecessary when the model has many parameters' does not explain the observed exposure. It ascribes the exposure to a different or unsupported cause instead of the failing trust, lifecycle, data, or inspection boundary identified in the facts. The evidence instead supports: Non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high. This distinction determines why require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

D:

The statement 'Black-box scoring removes the need for accountability in employment decisions' does not explain the observed exposure. It ascribes the exposure to a different or unsupported cause instead of the failing trust, lifecycle, data, or inspection boundary identified in the facts. The evidence instead supports: Non-explainable automated decisions complicate bias detection, appeals, and privacy compliance even when accuracy seems high. This distinction determines why require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

Question 135

A hiring model is used to reject applicants automatically but the organization cannot reconstruct why specific decisions were made. Which validation evidence is most directly connected to this particular scenario?

  1. A human cannot reconstruct which inputs affected an outcome
  2. A sampled rejected application has reproducible decision factors, documented reviewer signoff, and an appeal pathway.
  3. A rejected applicant receives no auditable decision basis
  4. Drift tests reveal disparity but no owner can pause the automated decisions

Explanation

Correct Answer

B:

The decisive acceptance evidence is: A sampled rejected application has reproducible decision factors, documented reviewer signoff, and an appeal pathway. It demonstrates that the intervention—Require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk—works in the scenario, rather than showing only a report, nominal configuration, or absence of alerts. An adverse test result would require remediation, not signoff.

Incorrect Answers

A:

Observing 'A human cannot reconstruct which inputs affected an outcome' would not prove that the proposed security fix succeeded. This documents missing evidence or an incomplete test, not a verified outcome that establishes the control has operated effectively. To accept the remediation, the test must demonstrate: A sampled rejected application has reproducible decision factors, documented reviewer signoff, and an appeal pathway. That measures the actual result of require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

C:

Observing 'A rejected applicant receives no auditable decision basis' would not prove that the proposed security fix succeeded. This documents missing evidence or an incomplete test, not a verified outcome that establishes the control has operated effectively. To accept the remediation, the test must demonstrate: A sampled rejected application has reproducible decision factors, documented reviewer signoff, and an appeal pathway. That measures the actual result of require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

D:

Observing 'Drift tests reveal disparity but no owner can pause the automated decisions' would not prove that the proposed security fix succeeded. This documents missing evidence or an incomplete test, not a verified outcome that establishes the control has operated effectively. To accept the remediation, the test must demonstrate: A sampled rejected application has reproducible decision factors, documented reviewer signoff, and an appeal pathway. That measures the actual result of require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

Question 136

A hiring model is used to reject applicants automatically but the organization cannot reconstruct why specific decisions were made. Even if the primary action succeeds, which specific risk may remain?

  1. Data drift may create unfair outcomes after the original validation period.
  2. A fair training dataset might still contain rare but severe errors in one subgroup.
  3. Human appeal reviewers may give inconsistent outcomes on marginal applications.
  4. A rejected applicant may not understand the form explaining a valid decision.

Explanation

Correct Answer

A:

The remedy cannot eliminate every downstream risk. The directly relevant remaining issue is: Data drift may create unfair outcomes after the original validation period. This needs monitoring or a separate follow-up after implementing Require accountable human review, decision logging, validity testing, and explainability appropriate to employment risk.

Incorrect Answers

B:

Model-validation breadth matters, but the keyed residual is changes in the live input distribution after initial review.

C:

Appeal governance is important, yet it is distinct from a drift-driven deterioration after deployment.

D:

Communication quality can be improved, while the keyed risk is latent unfair outcomes as data change.

Question 137

A research assistant can install its own third-party plugins and call cloud APIs using a broad service credential without a review step. Which security action is the most defensible next step for this situation?

  1. Let the AI agent install any extension under its administrator token
  2. Approve a plugin only once without monitoring its future updates
  3. Restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.
  4. Use the same broad cloud secret for every digital worker and task

Explanation

Correct Answer

C:

The case shows: A research assistant can install its own third-party plugins and call cloud APIs using a broad service credential without a review step. The preferred intervention—Restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions—directly corrects that deficiency. The security reason is that excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution. It is scoped to an enforceable control decision, unlike a policy label or unrelated improvement.

Incorrect Answers

A:

Selecting 'Let the AI agent install any extension under its administrator token' would not be the best response to this case. It may affect an adjacent security task, but it does not supply the complete boundary-specific intervention demanded by these facts. The actual gap is: Excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution. The more defensible control is Restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

B:

Selecting 'Approve a plugin only once without monitoring its future updates' would not be the best response to this case. This focuses on only a portion of the workflow or leaves the decisive control or evidence gap in place. The actual gap is: Excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution. The more defensible control is Restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

D:

Selecting 'Use the same broad cloud secret for every digital worker and task' would not be the best response to this case. This weakens an existing safeguard or uses indiscriminate changes, increasing exposure instead of selectively correcting the demonstrated weakness. The actual gap is: Excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution. The more defensible control is Restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

Question 138

A research assistant can install its own third-party plugins and call cloud APIs using a broad service credential without a review step. Which statement correctly distinguishes the observed control weakness?

  1. Excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution.
  2. An allowlisted extension can never become malicious in a later version
  3. A shared service credential provides individual action accountability
  4. An agent's natural-language reasoning constrains plugin permissions automatically

Explanation

Correct Answer

A:

The observed facts point to the causal security principle: Excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution. This is why the proportionate implementation response is restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions. The other answers either invent additional facts or mistake documentation or an adjacent safeguard for the actual cause.

Incorrect Answers

B:

The statement 'An allowlisted extension can never become malicious in a later version' does not explain the observed exposure. The absolute conclusion claims a guarantee that the scenario and the technical trust boundary do not support. The evidence instead supports: Excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution. This distinction determines why restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

C:

The statement 'A shared service credential provides individual action accountability' does not explain the observed exposure. It ascribes the exposure to a different or unsupported cause instead of the failing trust, lifecycle, data, or inspection boundary identified in the facts. The evidence instead supports: Excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution. This distinction determines why restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

D:

The statement 'An agent's natural-language reasoning constrains plugin permissions automatically' does not explain the observed exposure. It ascribes the exposure to a different or unsupported cause instead of the failing trust, lifecycle, data, or inspection boundary identified in the facts. The evidence instead supports: Excessive agent permissions and untrusted extensions create a supply-chain path from language output to privileged execution. This distinction determines why restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

Question 139

A research assistant can install its own third-party plugins and call cloud APIs using a broad service credential without a review step. Which finding is the strongest acceptance evidence for the recommended control?

  1. An unauthorized plugin fails installation and a simulated sensitive API call is denied without explicit approval.
  2. A test plugin reads an unapproved customer database
  3. A cloud API call proceeds without an authorization boundary
  4. An extension update silently gains new privileged capabilities

Explanation

Correct Answer

A:

The decisive acceptance evidence is: An unauthorized plugin fails installation and a simulated sensitive API call is denied without explicit approval. It demonstrates that the intervention—Restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions—works in the scenario, rather than showing only a report, nominal configuration, or absence of alerts. An adverse test result would require remediation, not signoff.

Incorrect Answers

B:

Observing 'A test plugin reads an unapproved customer database' would not prove that the proposed security fix succeeded. This is a proxy metric or adverse observation; it does not test both the intended security boundary and the permitted business function. To accept the remediation, the test must demonstrate: An unauthorized plugin fails installation and a simulated sensitive API call is denied without explicit approval. That measures the actual result of restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

C:

Observing 'A cloud API call proceeds without an authorization boundary' would not prove that the proposed security fix succeeded. This documents missing evidence or an incomplete test, not a verified outcome that establishes the control has operated effectively. To accept the remediation, the test must demonstrate: An unauthorized plugin fails installation and a simulated sensitive API call is denied without explicit approval. That measures the actual result of restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

D:

Observing 'An extension update silently gains new privileged capabilities' would not prove that the proposed security fix succeeded. This is a proxy metric or adverse observation; it does not test both the intended security boundary and the permitted business function. To accept the remediation, the test must demonstrate: An unauthorized plugin fails installation and a simulated sensitive API call is denied without explicit approval. That measures the actual result of restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

Question 140

A research assistant can install its own third-party plugins and call cloud APIs using a broad service credential without a review step. What is the most directly relevant limitation of the immediate fix?

  1. A permitted plugin could use excessive network bandwidth during a legitimate task.
  2. A narrowly scoped plugin could still give the assistant misleading search results.
  3. An approved API credential may reach expiry during a scheduled research workflow.
  4. A once-approved extension may later update to introduce new malicious behavior.

Explanation

Correct Answer

D:

The remedy cannot eliminate every downstream risk. The directly relevant remaining issue is: A once-approved extension may later update to introduce new malicious behavior. This needs monitoring or a separate follow-up after implementing Restrict plugin allowlists, delegate narrow scoped identities and require approval for high-impact external actions.

Incorrect Answers

A:

Resource controls are separate from a newly malicious plugin update introducing unexpected privileged behavior.

B:

Output reliability matters but does not address supply-chain updates after the extension was approved.

C:

Credential renewal can disrupt service but is not the relevant risk of a later extension version acquiring malicious behavior.

CompTIA SecurityX (CAS-005) Practice Tests

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