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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 86

Question 850

During a post-incident audit at a retail marketplace, the IS auditor learns that security assessment reports only tool counts without verifying exploitability of significant findings. The affected operation supports customer checkout and order fulfillment. Customer transactions and market trust depend on effective control. Which consequence would MOST directly follow if this weakness remains unresolved?

  1. Uncoordinated response can worsen damage, jeopardize evidence or miss critical decision and communication obligations.
  2. Security testing can miss material exposure or create uncontrolled disruption if scope, validation and remediation are weak.
  3. Excessive or untraceable access can enable unauthorized transactions and defeat accountability.
  4. Poor collection integrity or chain of custody can undermine forensic reliability and accountability.

Explanation

Correct Answer

B:

Correct. Security testing can miss material exposure or create uncontrolled disruption if scope, validation and remediation are weak. The described exception is: security assessment reports only tool counts without verifying exploitability of significant findings. 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:

Uncoordinated response can worsen damage, jeopardize evidence or miss critical decision and communication obligations. The relevant success criterion is evidence appropriate to the audit conclusion; this measures a different function.

C:

Excessive or untraceable access can enable unauthorized transactions and defeat accountability. Acceptance here depends on observing evidence appropriate to the audit conclusion, not only that test.

D:

Poor collection integrity or chain of custody can undermine forensic reliability and accountability. It does not establish the requested evidence appropriate to the audit conclusion outcome.

Question 851

During a post-incident audit at a retail marketplace, the IS auditor learns that security assessment reports only tool counts without verifying exploitability of significant findings. The affected operation supports customer checkout and order fulfillment. Customer transactions and market trust depend on effective control. Which audit procedure would provide the MOST DIRECT evidence about this control?

  1. Trace response exercises and incidents through roles, containment, communication, evidence preservation, recovery and lessons learned.
  2. Trace selected risks through framework control objectives, accountable owners, implemented safeguards and monitoring results.
  3. Review test authorization, representative scope, evidence, independent verification and corrective retesting of significant findings.
  4. Reconcile identities to authoritative HR records and test joiner-mover-leaver, role segregation and privileged event reviews.

Explanation

Correct Answer

C:

Correct. Review test authorization, representative scope, evidence, independent verification and corrective retesting of significant findings. The procedure directly tests the reported condition that security assessment reports only tool counts without verifying exploitability of significant findings. 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. That result could pass without demonstrating evidence appropriate to the audit conclusion.

B:

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

D:

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.

Question 852

During a post-incident audit at a retail marketplace, the IS auditor learns that security assessment reports only tool counts without verifying exploitability of significant findings. The affected operation supports customer checkout and order fulfillment. Customer transactions and market trust depend on effective control. Which follow-up result would BEST substantiate that the remediation operates effectively?

  1. Authorized test reports and targeted retests demonstrate critical exposures are identified, risk-rated and resolved.
  2. A rehearsed response record shows timely authorized containment, validated recovery and closure of assigned improvements.
  3. Sampled access removals, conflict checks and individually attributed privileged logs prove least privilege and separation.
  4. Dated custody logs and matching evidence hashes permit reproducible analysis from protected originals and controlled copies.

Explanation

Correct Answer

A:

Correct. Authorized test reports and targeted retests demonstrate critical exposures are identified, risk-rated and resolved. This is stronger than a manager's verbal assurance because it can be checked against the observed issue that security assessment reports only tool counts without verifying exploitability of significant findings. The reviewer must verify the remediation period and scope.

Incorrect Answers

B:

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

C:

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. That result could pass without demonstrating evidence appropriate to the audit conclusion.

Question 853

During an outsourced-services renewal at a logistics group, the IS auditor learns that a third-party scan is accepted although it covers only a development environment. The affected operation supports freight tracking and fleet operations. Delivery commitments and partner data flow through this process. Which weakness is MOST material to the control objective in this situation?

  1. Security testing can miss material exposure or create uncontrolled disruption if scope, validation and remediation are weak.
  2. Exposed administration surfaces and weak segment or endpoint controls can enable unauthorized access and lateral movement.
  3. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail.
  4. Poor collection integrity or chain of custody can undermine forensic reliability and accountability.

Explanation

Correct Answer

A:

Correct. Security testing can miss material exposure or create uncontrolled disruption if scope, validation and remediation are weak. The described exception is: a third-party scan is accepted although it covers only a development environment. 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

B:

Exposed administration surfaces and weak segment or endpoint controls can enable unauthorized access and lateral movement. It changes a different feature than evidence appropriate to the audit conclusion.

C:

Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail. That change would not implement evidence appropriate to the audit conclusion.

D:

Poor collection integrity or chain of custody can undermine forensic reliability and accountability. The configuration must instead establish evidence appropriate to the audit conclusion.

Question 854

During an outsourced-services renewal at a logistics group, the IS auditor learns that a third-party scan is accepted although it covers only a development environment. The affected operation supports freight tracking and fleet operations. Delivery commitments and partner data flow through this process. Which audit procedure would MOST directly validate the suspected control gap?

  1. Trace selected risks through framework control objectives, accountable owners, implemented safeguards and monitoring results.
  2. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records.
  3. Review test authorization, representative scope, evidence, independent verification and corrective retesting of significant findings.
  4. Compare intended network and endpoint baselines with live configurations, rule flows and controlled connectivity checks.

Explanation

Correct Answer

C:

Correct. Review test authorization, representative scope, evidence, independent verification and corrective retesting of significant findings. The procedure directly tests the reported condition that a third-party scan is accepted although it covers only a development environment. 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.

B:

Not the most direct fieldwork procedure for these facts. That change would not implement 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 855

During an outsourced-services renewal at a logistics group, the IS auditor learns that a third-party scan is accepted although it covers only a development environment. The affected operation supports freight tracking and fleet operations. Delivery commitments and partner data flow through this process. What would an auditor MOST want to see before accepting the issue as remediated?

  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. Authorized test reports and targeted retests demonstrate critical exposures are identified, risk-rated and resolved.

Explanation

Correct Answer

D:

Correct. Authorized test reports and targeted retests demonstrate critical exposures are identified, risk-rated and resolved. This is stronger than a manager's verbal assurance because it can be checked against the observed issue that a third-party scan is accepted although it covers only a development environment. The reviewer must verify the remediation period and scope.

Incorrect Answers

A:

Not the strongest closure evidence for this case. That change would not implement evidence appropriate to the audit conclusion.

B:

Not the strongest closure evidence for this case. The configuration must instead establish evidence appropriate to the audit conclusion.

C:

Not the strongest closure evidence for this case. The evidence appropriate to the audit conclusion prerequisite remains unaddressed.

Question 856

During a routine controls assessment at a regional hospital, the IS auditor learns that a security platform ingests logs but ignores alerts outside business hours. The affected operation supports patient-care scheduling and claims processing. Healthcare service continuity and protected records are at stake. What is the MOST defensible risk conclusion from the observed condition?

  1. Excessive or untraceable access can enable unauthorized transactions and defeat accountability.
  2. Poor collection integrity or chain of custody can undermine forensic reliability and accountability.
  3. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail.
  4. An unowned or paper-only control framework can create false assurance and unmitigated information risk.

Explanation

Correct Answer

C:

Correct. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail. The described exception is: a security platform ingests logs but ignores alerts outside business hours. This risk ties the observation to the business significance of patient-care scheduling and claims processing, rather than treating management's claim as independent assurance.

Incorrect Answers

A:

Excessive or untraceable access can enable unauthorized transactions and defeat accountability. Recurrence here depends on evidence appropriate to the audit conclusion, not this safeguard.

B:

Poor collection integrity or chain of custody can undermine forensic reliability and accountability. That protection can exist while evidence appropriate to the audit conclusion is still missing.

D:

An unowned or paper-only control framework can create false assurance and unmitigated information risk. It does not retain the evidence appropriate to the audit conclusion control over time.

Question 857

During a routine controls assessment at a regional hospital, the IS auditor learns that a security platform ingests logs but ignores alerts outside business hours. The affected operation supports patient-care scheduling and claims processing. Healthcare service continuity and protected records are at stake. Which fieldwork step should the auditor prioritize to test the issue?

  1. Inspect seizure, imaging, hash verification, timestamp handling and custody transfers against approved forensic procedures.
  2. Reconcile identities to authoritative HR records and test joiner-mover-leaver, role segregation and privileged event reviews.
  3. Inspect site entry records, physical boundaries, sensor alerts and tested power or environmental contingencies.
  4. Trace injected or historical test events from source ingestion through detection rules, triage and escalation records.

Explanation

Correct Answer

D:

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 a security platform ingests logs but ignores alerts outside business hours. 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 evidence appropriate to the audit conclusion prerequisite remains unaddressed.

B:

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. That change would not implement evidence appropriate to the audit conclusion.

Question 858

During a routine controls assessment at a regional hospital, the IS auditor learns that a security platform ingests logs but ignores alerts outside business hours. The affected operation supports patient-care scheduling and claims processing. Healthcare service continuity and protected records are at stake. Which observed evidence is MOST persuasive for a controlled audit follow-up?

  1. Controlled detections and case reviews show significant events are logged, prioritized and escalated within approved windows.
  2. A maintained risk-control matrix and independent operating tests show assigned controls meet defined security outcomes.
  3. Sampled access removals, conflict checks and individually attributed privileged logs prove least privilege and separation.
  4. Dated custody logs and matching evidence hashes permit reproducible analysis from protected originals and controlled copies.

Explanation

Correct Answer

A:

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 a security platform ingests logs but ignores alerts outside business hours. The reviewer must verify the remediation period and scope.

Incorrect Answers

B:

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

C:

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

D:

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

Question 859

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. Which risk statement is BEST supported by the recorded exception?

  1. Exposed administration surfaces and weak segment or endpoint controls can enable unauthorized access and lateral movement.
  2. An unowned or paper-only control framework can create false assurance and unmitigated information risk.
  3. Uncoordinated response can worsen damage, jeopardize evidence or miss critical decision and communication obligations.
  4. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail.

Explanation

Correct Answer

D:

Correct. Material attacks may go undetected or unhandled when monitoring coverage, correlation and escalation fail. The described exception is: high-severity events are drowned by repeated benign telemetry with no tuning. This risk ties the observation to the business significance of merchant settlement and reconciliation, 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. It does not retain the evidence appropriate to the audit conclusion control over time.

B:

An unowned or paper-only control framework can create false assurance and unmitigated information risk. Recurrence here depends on evidence appropriate to the audit conclusion, not this safeguard.

C:

Uncoordinated response can worsen damage, jeopardize evidence or miss critical decision and communication obligations. That protection can exist while evidence appropriate to the audit conclusion is still missing.

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.