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Isaca CISA Bundle

Exam Code: CISA

Exam Name Certified Information Systems Auditor

Certification Provider: Isaca

Corresponding Certification: CISA

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Isaca CISA Practice Test 87

Question 860

During a payment-platform modernization at a payment clearing organization, the IS auditor learns that high-severity events are drowned by repeated benign telemetry with no tuning. The affected operation supports merchant settlement and reconciliation. Finance and settlement integrity depend on this operation. During fieldwork, what is the BEST focused test of this condition?

  1. Inspect site entry records, physical boundaries, sensor alerts and tested power or environmental contingencies.
  2. Compare intended network and endpoint baselines with live configurations, rule flows and controlled connectivity checks.
  3. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records.
  4. Trace response exercises and incidents through roles, containment, communication, evidence preservation, recovery and lessons learned.

Explanation

Correct Answer

C:

Correct. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records. The procedure directly tests the reported condition that high-severity events are drowned by repeated benign telemetry with no tuning. A defensible IS audit conclusion requires relevant and reliable evidence from the actual control population and period.

Incorrect Answers

A:

Not the most direct fieldwork procedure for these facts. The configuration must instead establish evidence appropriate to the audit conclusion.

B:

Not the most direct fieldwork procedure for these facts. The evidence appropriate to the audit conclusion prerequisite remains unaddressed.

D:

Not the most direct fieldwork procedure for these facts. That change would not implement evidence appropriate to the audit conclusion.

Question 861

During a payment-platform modernization at a payment clearing organization, the IS auditor learns that high-severity events are drowned by repeated benign telemetry with no tuning. The affected operation supports merchant settlement and reconciliation. Finance and settlement integrity depend on this operation. Management states that remediation is complete. Which evidence BEST supports closing this issue?

  1. A rehearsed response record shows timely authorized containment, validated recovery and closure of assigned improvements.
  2. A maintained risk-control matrix and independent operating tests show assigned controls meet defined security outcomes.
  3. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows.
  4. Live rule and posture tests deny unauthorized paths while proving required approved service communications still work.

Explanation

Correct Answer

C:

Correct. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows. This is stronger than a manager's verbal assurance because it can be checked against the observed issue that high-severity events are drowned by repeated benign telemetry with no tuning. The reviewer must verify the remediation period and scope.

Incorrect Answers

A:

Not the strongest closure evidence for this case. It does not establish the requested evidence appropriate to the audit conclusion outcome.

B:

Not the strongest closure evidence for this case. The relevant success criterion is evidence appropriate to the audit conclusion; this measures a different function.

D:

Not the strongest closure evidence for this case. Acceptance here depends on observing evidence appropriate to the audit conclusion, not only that test.

Question 862

During a regulatory readiness review at a municipal government, the IS auditor learns that endpoint telemetry from remote offices silently stops without a health alarm. The affected operation supports citizen service accounts and public records. Public accountability and essential service access are affected. Which risk should the auditor treat as the PRIMARY concern arising from these facts?

  1. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail.
  2. Sensitive information can leave controlled boundaries when classification, inspection coverage or response is incomplete.
  3. Poor collection integrity or chain of custody can undermine forensic reliability and accountability.
  4. An unowned or paper-only control framework can create false assurance and unmitigated information risk.

Explanation

Correct Answer

A:

Correct. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail. The described exception is: endpoint telemetry from remote offices silently stops without a health alarm. This risk ties the observation to the business significance of citizen service accounts and public records, rather than treating management's claim as independent assurance.

Incorrect Answers

B:

Sensitive information can leave controlled boundaries when classification, inspection coverage or response is incomplete. It does not retain the evidence appropriate to the audit conclusion control over time.

C:

Poor collection integrity or chain of custody can undermine forensic reliability and accountability. Recurrence here depends on evidence appropriate to the audit conclusion, not this safeguard.

D:

An unowned or paper-only control framework can create false assurance and unmitigated information risk. That protection can exist while evidence appropriate to the audit conclusion is still missing.

Question 863

During a regulatory readiness review at a municipal government, the IS auditor learns that endpoint telemetry from remote offices silently stops without a health alarm. The affected operation supports citizen service accounts and public records. Public accountability and essential service access are affected. What test BEST distinguishes effective control operation from an unsupported assertion?

  1. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records.
  2. Inspect seizure, imaging, hash verification, timestamp handling and custody transfers against approved forensic procedures.
  3. Inspect site entry records, physical boundaries, sensor alerts and tested power or environmental contingencies.
  4. Trace representative sensitive data flows against classification rules, DLP enforcement and alert triage.

Explanation

Correct Answer

A:

Correct. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records. The procedure directly tests the reported condition that endpoint telemetry from remote offices silently stops without a health alarm. A defensible IS audit conclusion requires relevant and reliable evidence from the actual control population and period.

Incorrect Answers

B:

Not the most direct fieldwork procedure for these facts. The configuration must instead establish evidence appropriate to the audit conclusion.

C:

Not the most direct fieldwork procedure for these facts. The evidence appropriate to the audit conclusion prerequisite remains unaddressed.

D:

Not the most direct fieldwork procedure for these facts. It changes a different feature than evidence appropriate to the audit conclusion.

Question 864

During a regulatory readiness review at a municipal government, the IS auditor learns that endpoint telemetry from remote offices silently stops without a health alarm. The affected operation supports citizen service accounts and public records. Public accountability and essential service access are affected. What result would best demonstrate sustained operation of the corrected control?

  1. Negative transfer tests and investigated alerts show unauthorized disclosure is prevented or promptly detected and contained.
  2. A maintained risk-control matrix and independent operating tests show assigned controls meet defined security outcomes.
  3. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows.
  4. Dated custody logs and matching evidence hashes permit reproducible analysis from protected originals and controlled copies.

Explanation

Correct Answer

C:

Correct. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows. This is stronger than a manager's verbal assurance because it can be checked against the observed issue that endpoint telemetry from remote offices silently stops without a health alarm. The reviewer must verify the remediation period and scope.

Incorrect Answers

A:

Not the strongest closure evidence for this case. Acceptance here depends on observing evidence appropriate to the audit conclusion, not only that test.

B:

Not the strongest closure evidence for this case. It does not establish the requested evidence appropriate to the audit conclusion outcome.

D:

Not the strongest closure evidence for this case. That result could pass without demonstrating evidence appropriate to the audit conclusion.

Question 865

During a post-incident audit at a retail marketplace, the IS auditor learns that correlation rules do not link authentication failures to later privileged access. The affected operation supports customer checkout and order fulfillment. Customer transactions and market trust depend on effective control. Where should the audit team focus its principal finding?

  1. An unowned or paper-only control framework can create false assurance and unmitigated information risk.
  2. Uncoordinated response can worsen damage, jeopardize evidence or miss critical decision and communication obligations.
  3. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail.
  4. Excessive or untraceable access can enable unauthorized transactions and defeat accountability.

Explanation

Correct Answer

C:

Correct. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail. The described exception is: correlation rules do not link authentication failures to later privileged access. This risk ties the observation to the business significance of customer checkout and order fulfillment, rather than treating management's claim as independent assurance.

Incorrect Answers

A:

An unowned or paper-only control framework can create false assurance and unmitigated information risk. The evidence appropriate to the audit conclusion prerequisite remains unaddressed.

B:

Uncoordinated response can worsen damage, jeopardize evidence or miss critical decision and communication obligations. It changes a different feature than evidence appropriate to the audit conclusion.

D:

Excessive or untraceable access can enable unauthorized transactions and defeat accountability. The configuration must instead establish evidence appropriate to the audit conclusion.

Question 866

During a post-incident audit at a retail marketplace, the IS auditor learns that correlation rules do not link authentication failures to later privileged access. The affected operation supports customer checkout and order fulfillment. Customer transactions and market trust depend on effective control. Which substantive or control test most directly addresses the observation?

  1. Inspect site entry records, physical boundaries, sensor alerts and tested power or environmental contingencies.
  2. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records.
  3. Trace response exercises and incidents through roles, containment, communication, evidence preservation, recovery and lessons learned.
  4. Reconcile identities to authoritative HR records and test joiner-mover-leaver, role segregation and privileged event reviews.

Explanation

Correct Answer

B:

Correct. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records. The procedure directly tests the reported condition that correlation rules do not link authentication failures to later privileged access. A defensible IS audit conclusion requires relevant and reliable evidence from the actual control population and period.

Incorrect Answers

A:

Not the most direct fieldwork procedure for these facts. It changes a different feature than evidence appropriate to the audit conclusion.

C:

Not the most direct fieldwork procedure for these facts. The configuration must instead establish evidence appropriate to the audit conclusion.

D:

Not the most direct fieldwork procedure for these facts. The evidence appropriate to the audit conclusion prerequisite remains unaddressed.

Question 867

During a post-incident audit at a retail marketplace, the IS auditor learns that correlation rules do not link authentication failures to later privileged access. The affected operation supports customer checkout and order fulfillment. Customer transactions and market trust depend on effective control. What outcome would provide the STRONGEST evidence that the identified gap is resolved?

  1. A maintained risk-control matrix and independent operating tests show assigned controls meet defined security outcomes.
  2. Sampled access removals, conflict checks and individually attributed privileged logs prove least privilege and separation.
  3. A rehearsed response record shows timely authorized containment, validated recovery and closure of assigned improvements.
  4. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows.

Explanation

Correct Answer

D:

Correct. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows. This is stronger than a manager's verbal assurance because it can be checked against the observed issue that correlation rules do not link authentication failures to later privileged access. The reviewer must verify the remediation period and scope.

Incorrect Answers

A:

Not the strongest closure evidence for this case. That result could pass without demonstrating evidence appropriate to the audit conclusion.

B:

Not the strongest closure evidence for this case. Acceptance here depends on observing evidence appropriate to the audit conclusion, not only that test.

C:

Not the strongest closure evidence for this case. It does not establish the requested evidence appropriate to the audit conclusion outcome.

Question 868

During an outsourced-services renewal at a logistics group, the IS auditor learns that the SOC reports alerts closed without confirming investigation quality. The affected operation supports freight tracking and fleet operations. Delivery commitments and partner data flow through this process. What control exposure MOST directly explains why this observation is significant?

  1. Exposed administration surfaces and weak segment or endpoint controls can enable unauthorized access and lateral movement.
  2. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail.
  3. An unowned or paper-only control framework can create false assurance and unmitigated information risk.
  4. Poor collection integrity or chain of custody can undermine forensic reliability and accountability.

Explanation

Correct Answer

B:

Correct. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail. The described exception is: the SOC reports alerts closed without confirming investigation quality. This risk ties the observation to the business significance of freight tracking and fleet operations, rather than treating management's claim as independent assurance.

Incorrect Answers

A:

Exposed administration surfaces and weak segment or endpoint controls can enable unauthorized access and lateral movement. Acceptance here depends on observing evidence appropriate to the audit conclusion, not only that test.

C:

An unowned or paper-only control framework can create false assurance and unmitigated information risk. The relevant success criterion is evidence appropriate to the audit conclusion; this measures a different function.

D:

Poor collection integrity or chain of custody can undermine forensic reliability and accountability. That result could pass without demonstrating evidence appropriate to the audit conclusion.

Question 869

During an outsourced-services renewal at a logistics group, the IS auditor learns that the SOC reports alerts closed without confirming investigation quality. The affected operation supports freight tracking and fleet operations. Delivery commitments and partner data flow through this process. Which evidence-gathering approach is MOST aligned with the recorded exposure?

  1. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records.
  2. Compare intended network and endpoint baselines with live configurations, rule flows and controlled connectivity checks.
  3. Inspect site entry records, physical boundaries, sensor alerts and tested power or environmental contingencies.
  4. Inspect seizure, imaging, hash verification, timestamp handling and custody transfers against approved forensic procedures.

Explanation

Correct Answer

A:

Correct. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records. The procedure directly tests the reported condition that the SOC reports alerts closed without confirming investigation quality. A defensible IS audit conclusion requires relevant and reliable evidence from the actual control population and period.

Incorrect Answers

B:

Not the most direct fieldwork procedure for these facts. The relevant success criterion is evidence appropriate to the audit conclusion; this measures a different function.

C:

Not the most direct fieldwork procedure for these facts. That result could pass without demonstrating evidence appropriate to the audit conclusion.

D:

Not the most direct fieldwork procedure for these facts. Acceptance here depends on observing evidence appropriate to the audit conclusion, not only that test.

Question 870

During an outsourced-services renewal at a logistics group, the IS auditor learns that the SOC reports alerts closed without confirming investigation quality. The affected operation supports freight tracking and fleet operations. Delivery commitments and partner data flow through this process. Which evidence would BEST support a conclusion that the exposure has been addressed?

  1. Live rule and posture tests deny unauthorized paths while proving required approved service communications still work.
  2. Dated custody logs and matching evidence hashes permit reproducible analysis from protected originals and controlled copies.
  3. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows.
  4. A maintained risk-control matrix and independent operating tests show assigned controls meet defined security outcomes.

Explanation

Correct Answer

C:

Correct. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows. This is stronger than a manager's verbal assurance because it can be checked against the observed issue that the SOC reports alerts closed without confirming investigation quality. The reviewer must verify the remediation period and scope.

Incorrect Answers

A:

Not the strongest closure evidence for this case. The relevant success criterion is evidence appropriate to the audit conclusion; this measures a different function.

B:

Not the strongest closure evidence for this case. That result could pass without demonstrating evidence appropriate to the audit conclusion.

D:

Not the strongest closure evidence for this case. It does not establish the requested evidence appropriate to the audit conclusion outcome.