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?
- Recommend an accurate component dependency inventory and risk review of single points of failure.
- Recommend protected incident evidence retention and audited deletion rules.
- Recommend tested alternate operator coverage and controlled emergency access.
- 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?
- Expired exceptions close or are explicitly renewed with current evidence and risk ownership.
- Downstream consumers use a documented authoritative source with measured consistency.
- Sample teams operate the current version and report measurable adherence.
- 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?
- Inspect ticket retention configuration, attachment lifecycle and regulatory obligations.
- Trace event timestamps, source authority, synchronization paths and mismatched records.
- Inspect queue retention, acknowledgement logic, failed-message stores and recovery procedures.
- 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?
- Recommend risk-weighted supplier evaluation with documented approval of material exceptions.
- Harmonize procedures or formally approve justified exceptions with assigned owners.
- Recommend calibrated criteria and transparent portfolio-level aggregation with limits noted.
- 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?
- A measured peak-like exercise meets agreed recovery times and identifies capacity shortfalls.
- A rerun delivers correct messages through tested channels within response requirements.
- A safe identity outage test produces expected user behavior and timely alerts.
- 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?
- Review approved retention rules, system purge settings, storage capacity and sampled history.
- Trace event timestamps, source authority, synchronization paths and mismatched records.
- Compare NTP status, clock drift, timezone settings and source event timestamps.
- 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?
- Controlled threshold simulations generate timely alerts and documented response.
- Repeat infections decline and validated corrective controls remain effective.
- Sample departures lose relevant access within policy limits and retain auditable evidence.
- 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?
- Escalate unresolved pressure through the chief audit executive and retain the supported finding.
- Report the historical exception with clear current remediation status and corroborated response.
- Set defensible risk-based objectives and seek audit leadership approval for any scope restriction.
- 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?
- An authorized test shows alarms and personnel response without preventing emergency egress.
- Dashboards distinguish policy existence from verified control performance.
- Material risks link to approved controls and measurable evidence of effective operation.
- 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?
- Vendor risk must be evaluated against enforceable contractual terms and business requirements.
- Governance should define risk ownership and objective challenge across accountable roles.
- Risk decisions must consider both likelihood and impact against appetite and tolerance.
- 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?
- An authorized test shows alarms and personnel response without preventing emergency egress.
- Exercises demonstrate timely threat isolation while maintaining essential care pathways.
- A safe combined test creates a prioritized alert with adequate investigation context.
- 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.