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Isaca CISA Practice Test 54

Question 530

An IS auditor is preparing recommendations after reviewing this situation: Operations declares an incident resolved because a server restarted, although business transactions remain stuck. Which recommendation would BEST address the identified weakness?

  1. Recommend an accurate component dependency inventory and risk review of single points of failure.
  2. Recommend protected incident evidence retention and audited deletion rules.
  3. Recommend tested alternate operator coverage and controlled emergency access.
  4. Recommend end-to-end business recovery criteria before incident closure.

Explanation

Correct Answer

D:

Recommend end-to-end business recovery criteria before incident closure. The relevant control principle is: Incident closure should confirm restoration of the affected business service, not just infrastructure state. A meaningful follow-up should establish: A sample transaction completes correctly and accountable users confirm recovery.

Incorrect Answers

A:

Recommend an accurate component dependency inventory and risk review of single points of failure. This would be relevant to a different issue such as: A payment service uses a load balancer, two application servers and one database but its diagram lists only the web servers as critical. In the present case, the most directly relevant recommendation is: Recommend end-to-end business recovery criteria before incident closure. The governing distinction is: Incident closure should confirm restoration of the affected business service, not just infrastructure state.

B:

Recommend protected incident evidence retention and audited deletion rules. This would be relevant to a different issue such as: A service desk deletes incident attachments when tickets are closed, preventing later regulatory review. In the present case, the most directly relevant recommendation is: Recommend end-to-end business recovery criteria before incident closure. The governing distinction is: Incident closure should confirm restoration of the affected business service, not just infrastructure state.

C:

Recommend tested alternate operator coverage and controlled emergency access. This would be relevant to a different issue such as: A highly available application uses only one privileged administrator who is unavailable during a holiday. In the present case, the most directly relevant recommendation is: Recommend end-to-end business recovery criteria before incident closure. The governing distinction is: Incident closure should confirm restoration of the affected business service, not just infrastructure state.

Question 531

Management reports that this issue has been corrected: A new corporate service standard is rolled out without training, version control or effectiveness reviews. Which result would provide the STRONGEST assurance that the issue is corrected?

  1. Expired exceptions close or are explicitly renewed with current evidence and risk ownership.
  2. Downstream consumers use a documented authoritative source with measured consistency.
  3. Sample teams operate the current version and report measurable adherence.
  4. Defect leakage and repeat incident rates fall under measured controls.

Explanation

Correct Answer

C:

Sample teams operate the current version and report measurable adherence. It addresses quality assurance and quality management of it. Underlying audit concern: A quality management system needs controlled documentation and implementation monitoring.

Incorrect Answers

A:

Expired exceptions close or are explicitly renewed with current evidence and risk ownership. This would be relevant to a different issue such as: A vendor incident triggers a temporary exception but the residual risk is never reconsidered after six months. In the present case, the most directly relevant verification is: Sample teams operate the current version and report measurable adherence. The governing distinction is: A quality management system needs controlled documentation and implementation monitoring.

B:

Downstream consumers use a documented authoritative source with measured consistency. This would be relevant to a different issue such as: Multiple business units publish different values for the same customer account status without a nominated data steward. In the present case, the most directly relevant verification is: Sample teams operate the current version and report measurable adherence. The governing distinction is: A quality management system needs controlled documentation and implementation monitoring.

D:

Defect leakage and repeat incident rates fall under measured controls. This would be relevant to a different issue such as: A software delivery group claims quality because unit tests pass, but repeated severe production incidents persist. In the present case, the most directly relevant verification is: Sample teams operate the current version and report measurable adherence. The governing distinction is: A quality management system needs controlled documentation and implementation monitoring.

Question 532

Before reaching an audit conclusion, consider: Two systems independently update the same customer address, producing unpredictable last-write results. Which evidence should the auditor review FIRST to evaluate this risk?

  1. Inspect ticket retention configuration, attachment lifecycle and regulatory obligations.
  2. Trace event timestamps, source authority, synchronization paths and mismatched records.
  3. Inspect queue retention, acknowledgement logic, failed-message stores and recovery procedures.
  4. Inspect backup privilege boundaries, deletion rights and ransomware recovery design.

Explanation

Correct Answer

B:

Trace event timestamps, source authority, synchronization paths and mismatched records. The governing principle is: Interfaces need defined data ownership and conflict-resolution rules.

Incorrect Answers

A:

Inspect ticket retention configuration, attachment lifecycle and regulatory obligations. This would be relevant to a different issue such as: A service desk deletes incident attachments when tickets are closed, preventing later regulatory review. In the present case, the most directly relevant audit step is: Trace event timestamps, source authority, synchronization paths and mismatched records. The governing distinction is: Interfaces need defined data ownership and conflict-resolution rules.

C:

Inspect queue retention, acknowledgement logic, failed-message stores and recovery procedures. This would be relevant to a different issue such as: A cloud event bus drops messages during an outage and consuming systems never replay them. In the present case, the most directly relevant audit step is: Trace event timestamps, source authority, synchronization paths and mismatched records. The governing distinction is: Interfaces need defined data ownership and conflict-resolution rules.

D:

Inspect backup privilege boundaries, deletion rights and ransomware recovery design. This would be relevant to a different issue such as: An attacker encrypts production files and online backups because both use the same compromised admin identity. In the present case, the most directly relevant audit step is: Trace event timestamps, source authority, synchronization paths and mismatched records. The governing distinction is: Interfaces need defined data ownership and conflict-resolution rules.

Question 533

An IS auditor is preparing recommendations after reviewing this situation: An enterprise applies one numeric risk score to cyber, safety and privacy exposures despite different materiality definitions. Which recommendation would BEST address the identified weakness?

  1. Recommend risk-weighted supplier evaluation with documented approval of material exceptions.
  2. Harmonize procedures or formally approve justified exceptions with assigned owners.
  3. Recommend calibrated criteria and transparent portfolio-level aggregation with limits noted.
  4. Recommend reassessing impact and escalating acceptance above delegated limits.

Explanation

Correct Answer

C:

Recommend calibrated criteria and transparent portfolio-level aggregation with limits noted. The relevant control principle is: Risk aggregation requires consistent criteria and clear reporting of noncomparable dimensions. A meaningful follow-up should establish: Board risk views disclose significant exposures without misleading cross-category comparisons.

Incorrect Answers

A:

Recommend risk-weighted supplier evaluation with documented approval of material exceptions. This would be relevant to a different issue such as: Procurement selects the lowest-cost cloud vendor while ignoring prior security incidents and regulatory audit rights. In the present case, the most directly relevant recommendation is: Recommend calibrated criteria and transparent portfolio-level aggregation with limits noted. The governing distinction is: Risk aggregation requires consistent criteria and clear reporting of noncomparable dimensions.

B:

Harmonize procedures or formally approve justified exceptions with assigned owners. This would be relevant to a different issue such as: Regional IT teams follow conflicting change-control procedures even though one enterprise policy applies. In the present case, the most directly relevant recommendation is: Recommend calibrated criteria and transparent portfolio-level aggregation with limits noted. The governing distinction is: Risk aggregation requires consistent criteria and clear reporting of noncomparable dimensions.

D:

Recommend reassessing impact and escalating acceptance above delegated limits. This would be relevant to a different issue such as: A department labels a customer outage risk acceptable because its probability is low without evaluating financial impact. In the present case, the most directly relevant recommendation is: Recommend calibrated criteria and transparent portfolio-level aggregation with limits noted. The governing distinction is: Risk aggregation requires consistent criteria and clear reporting of noncomparable dimensions.

Question 534

Management reports that this issue has been corrected: A regional outage exercise reveals that business partners were never included in the communications tree. Which result would provide the STRONGEST assurance that the issue is corrected?

  1. A measured peak-like exercise meets agreed recovery times and identifies capacity shortfalls.
  2. A rerun delivers correct messages through tested channels within response requirements.
  3. A safe identity outage test produces expected user behavior and timely alerts.
  4. Trained staff complete representative customer calls from the alternate site.

Explanation

Correct Answer

B:

A rerun delivers correct messages through tested channels within response requirements. It addresses business continuity plan. Underlying audit concern: Continuity communication should address external dependencies and affected stakeholders.

Incorrect Answers

A:

A measured peak-like exercise meets agreed recovery times and identifies capacity shortfalls. This would be relevant to a different issue such as: A company rehearses DR annually on a clean weekend but its live recovery window overlaps payroll peaks and storage contention. In the present case, the most directly relevant verification is: A rerun delivers correct messages through tested channels within response requirements. The governing distinction is: Continuity communication should address external dependencies and affected stakeholders.

C:

A safe identity outage test produces expected user behavior and timely alerts. This would be relevant to a different issue such as: A cloud-hosted application has healthy virtual machines but customer logins fail when its external identity service is unavailable. In the present case, the most directly relevant verification is: A rerun delivers correct messages through tested channels within response requirements. The governing distinction is: Continuity communication should address external dependencies and affected stakeholders.

D:

Trained staff complete representative customer calls from the alternate site. This would be relevant to a different issue such as: A call center continuity binder lists alternate desks but employees cannot access the customer service application from that location. In the present case, the most directly relevant verification is: A rerun delivers correct messages through tested channels within response requirements. The governing distinction is: Continuity communication should address external dependencies and affected stakeholders.

Question 535

Before reaching an audit conclusion, consider: Multiple servers use unsynchronized clocks so a transaction appears to complete before it begins. Which evidence should the auditor review FIRST to evaluate this risk?

  1. Review approved retention rules, system purge settings, storage capacity and sampled history.
  2. Trace event timestamps, source authority, synchronization paths and mismatched records.
  3. Compare NTP status, clock drift, timezone settings and source event timestamps.
  4. Compare discovery scans, inventory records, host ownership and vendor support status.

Explanation

Correct Answer

C:

Compare NTP status, clock drift, timezone settings and source event timestamps. The governing principle is: Reliable log correlation depends on consistent time and original event provenance.

Incorrect Answers

A:

Review approved retention rules, system purge settings, storage capacity and sampled history. This would be relevant to a different issue such as: A financial application retains operational logs for only a week although investigation rules require six months. In the present case, the most directly relevant audit step is: Compare NTP status, clock drift, timezone settings and source event timestamps. The governing distinction is: Reliable log correlation depends on consistent time and original event provenance.

B:

Trace event timestamps, source authority, synchronization paths and mismatched records. This would be relevant to a different issue such as: Two systems independently update the same customer address, producing unpredictable last-write results. In the present case, the most directly relevant audit step is: Compare NTP status, clock drift, timezone settings and source event timestamps. The governing distinction is: Reliable log correlation depends on consistent time and original event provenance.

D:

Compare discovery scans, inventory records, host ownership and vendor support status. This would be relevant to a different issue such as: An IT inventory lists hundreds of production servers without owners or support end dates. In the present case, the most directly relevant audit step is: Compare NTP status, clock drift, timezone settings and source event timestamps. The governing distinction is: Reliable log correlation depends on consistent time and original event provenance.

Question 536

Management reports that this issue has been corrected: A data center's redundant power feeds terminate at the same upstream distribution panel. Which result would provide the STRONGEST assurance that the issue is corrected?

  1. Controlled threshold simulations generate timely alerts and documented response.
  2. Repeat infections decline and validated corrective controls remain effective.
  3. Sample departures lose relevant access within policy limits and retain auditable evidence.
  4. A controlled upstream power loss leaves essential services within continuity targets.

Explanation

Correct Answer

D:

A controlled upstream power loss leaves essential services within continuity targets. It addresses physical and environmental controls. Underlying audit concern: Electrical resilience depends on independence of power paths and verified failure domains.

Incorrect Answers

A:

Controlled threshold simulations generate timely alerts and documented response. This would be relevant to a different issue such as: A fire-suppression system passes annual inspections but a rack's temperature sensors have never alarmed under test. In the present case, the most directly relevant verification is: A controlled upstream power loss leaves essential services within continuity targets. The governing distinction is: Electrical resilience depends on independence of power paths and verified failure domains.

B:

Repeat infections decline and validated corrective controls remain effective. This would be relevant to a different issue such as: After a malware outbreak is closed, identical infections recur because no root-cause or control improvement work is assigned. In the present case, the most directly relevant verification is: A controlled upstream power loss leaves essential services within continuity targets. The governing distinction is: Electrical resilience depends on independence of power paths and verified failure domains.

C:

Sample departures lose relevant access within policy limits and retain auditable evidence. This would be relevant to a different issue such as: A departed finance employee's account remains enabled in a payroll application after HR termination. In the present case, the most directly relevant verification is: A controlled upstream power loss leaves essential services within continuity targets. The governing distinction is: Electrical resilience depends on independence of power paths and verified failure domains.

Question 537

An IS auditor is preparing recommendations after reviewing this situation: An auditee disputes an audit exception by supplying a later control fix, then asks to erase the historical finding. Which recommendation would BEST address the identified weakness?

  1. Escalate unresolved pressure through the chief audit executive and retain the supported finding.
  2. Report the historical exception with clear current remediation status and corroborated response.
  3. Set defensible risk-based objectives and seek audit leadership approval for any scope restriction.
  4. Present a concise prioritized executive summary with detailed workpapers available on request.

Explanation

Correct Answer

B:

Report the historical exception with clear current remediation status and corroborated response. The relevant control principle is: Remediation after the audit period does not retroactively prove the control operated during that period. A meaningful follow-up should establish: The report accurately distinguishes observed noncompliance from subsequently verified correction.

Incorrect Answers

A:

Escalate unresolved pressure through the chief audit executive and retain the supported finding. This would be relevant to a different issue such as: A chief information officer asks the audit lead to remove a supported high-risk finding before it reaches the audit committee. In the present case, the most directly relevant recommendation is: Report the historical exception with clear current remediation status and corroborated response. The governing distinction is: Remediation after the audit period does not retroactively prove the control operated during that period.

C:

Set defensible risk-based objectives and seek audit leadership approval for any scope restriction. This would be relevant to a different issue such as: A business unit requests that internal audit review only controls selected by its system owner. In the present case, the most directly relevant recommendation is: Report the historical exception with clear current remediation status and corroborated response. The governing distinction is: Remediation after the audit period does not retroactively prove the control operated during that period.

D:

Present a concise prioritized executive summary with detailed workpapers available on request. This would be relevant to a different issue such as: A board report includes hundreds of raw test details but fails to distinguish enterprise-critical findings. In the present case, the most directly relevant recommendation is: Report the historical exception with clear current remediation status and corroborated response. The governing distinction is: Remediation after the audit period does not retroactively prove the control operated during that period.

Question 538

Management reports that this issue has been corrected: A technology subsidiary adopts a security checklist that cannot be traced to its enterprise risk appetite or legal obligations. Which result would provide the STRONGEST assurance that the issue is corrected?

  1. An authorized test shows alarms and personnel response without preventing emergency egress.
  2. Dashboards distinguish policy existence from verified control performance.
  3. Material risks link to approved controls and measurable evidence of effective operation.
  4. A supervised emergency test succeeds and creates attributable alerts and restoration evidence.

Explanation

Correct Answer

C:

Material risks link to approved controls and measurable evidence of effective operation. It addresses information asset security frameworks, standards, and guidelines. Underlying audit concern: Security governance frameworks should be tailored to organizational risks, obligations and measurable controls.

Incorrect Answers

A:

An authorized test shows alarms and personnel response without preventing emergency egress. This would be relevant to a different issue such as: A server room uses badge access but an unattended emergency door allows unrecorded entry. In the present case, the most directly relevant verification is: Material risks link to approved controls and measurable evidence of effective operation. The governing distinction is: Security governance frameworks should be tailored to organizational risks, obligations and measurable controls.

B:

Dashboards distinguish policy existence from verified control performance. This would be relevant to a different issue such as: A compliance dashboard reports all policies published but does not measure whether their security controls operate. In the present case, the most directly relevant verification is: Material risks link to approved controls and measurable evidence of effective operation. The governing distinction is: Security governance frameworks should be tailored to organizational risks, obligations and measurable controls.

D:

A supervised emergency test succeeds and creates attributable alerts and restoration evidence. This would be relevant to a different issue such as: Emergency administrator accounts are exempt from monitoring and are never tested until an outage. In the present case, the most directly relevant verification is: Material risks link to approved controls and measurable evidence of effective operation. The governing distinction is: Security governance frameworks should be tailored to organizational risks, obligations and measurable controls.

Question 539

An IS auditor evaluates this situation: A subcontractor stores confidential records in a region excluded by the prime provider's contract. Which audit principle MOST directly applies to this situation?

  1. Vendor risk must be evaluated against enforceable contractual terms and business requirements.
  2. Governance should define risk ownership and objective challenge across accountable roles.
  3. Risk decisions must consider both likelihood and impact against appetite and tolerance.
  4. Third-party governance must extend material controls and data obligations to subcontractors.

Explanation

Correct Answer

D:

Third-party governance must extend material controls and data obligations to subcontractors. The corresponding audit procedure is: Review subprocessor lists, data flows, consent terms and audit rights.

Incorrect Answers

A:

Vendor risk must be evaluated against enforceable contractual terms and business requirements. This would be relevant to a different issue such as: A SaaS provider promises 99.9% uptime in a brochure but the signed agreement contains no measurable recovery commitment. In the present case, the most directly relevant principle is: Third-party governance must extend material controls and data obligations to subcontractors. The governing distinction is: Third-party governance must extend material controls and data obligations to subcontractors.

B:

Governance should define risk ownership and objective challenge across accountable roles. This would be relevant to a different issue such as: A chief technology officer both accepts enterprise cyber risk and certifies the independence of the risk oversight function. In the present case, the most directly relevant principle is: Third-party governance must extend material controls and data obligations to subcontractors. The governing distinction is: Third-party governance must extend material controls and data obligations to subcontractors.

C:

Risk decisions must consider both likelihood and impact against appetite and tolerance. This would be relevant to a different issue such as: A department labels a customer outage risk acceptable because its probability is low without evaluating financial impact. In the present case, the most directly relevant principle is: Third-party governance must extend material controls and data obligations to subcontractors. The governing distinction is: Third-party governance must extend material controls and data obligations to subcontractors.

Question 540

Management reports that this issue has been corrected: A security team isolates a suspicious server without informing its critical care business owner, interrupting clinical operations. Which result would provide the STRONGEST assurance that the issue is corrected?

  1. An authorized test shows alarms and personnel response without preventing emergency egress.
  2. Exercises demonstrate timely threat isolation while maintaining essential care pathways.
  3. A safe combined test creates a prioritized alert with adequate investigation context.
  4. A tabletop triggers authorized decisions and compliant notices within required timeframes.

Explanation

Correct Answer

B:

Exercises demonstrate timely threat isolation while maintaining essential care pathways. It addresses security incident response management. Underlying audit concern: Containment decisions must consider urgency, safety, business impact and authorized coordination.

Incorrect Answers

A:

An authorized test shows alarms and personnel response without preventing emergency egress. This would be relevant to a different issue such as: A server room uses badge access but an unattended emergency door allows unrecorded entry. In the present case, the most directly relevant verification is: Exercises demonstrate timely threat isolation while maintaining essential care pathways. The governing distinction is: Containment decisions must consider urgency, safety, business impact and authorized coordination.

C:

A safe combined test creates a prioritized alert with adequate investigation context. This would be relevant to a different issue such as: A SOC receives repeated login alerts but does not correlate them with high-value account privilege changes. In the present case, the most directly relevant verification is: Exercises demonstrate timely threat isolation while maintaining essential care pathways. The governing distinction is: Containment decisions must consider urgency, safety, business impact and authorized coordination.

D:

A tabletop triggers authorized decisions and compliant notices within required timeframes. This would be relevant to a different issue such as: An organization discovers a reportable personal-data breach but no one knows who can authorize external notification. In the present case, the most directly relevant verification is: Exercises demonstrate timely threat isolation while maintaining essential care pathways. The governing distinction is: Containment decisions must consider urgency, safety, business impact and authorized coordination.

Certified Information Systems Auditor (CISA) Practice Tests