Isaca CISA Practice Test 55
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.
Question 541
An IS auditor evaluates this situation: A bank's compliance register still lists a superseded regulatory reporting deadline after a rule change. Which audit principle MOST directly applies to this situation?
- License governance should reconcile entitlement, actual use and lifecycle changes.
- Governance must detect changes in external obligations and translate them into owned controls.
- Compliance obligations vary by location, data activity, contract and regulatory scope.
- Resource governance should use accurate inventory and allocation evidence before investment.
Explanation
Correct Answer
B:Governance must detect changes in external obligations and translate them into owned controls. The corresponding audit procedure is: Compare the current regulator publication, policy inventory and reporting workflow dates.
Incorrect Answers
A:License governance should reconcile entitlement, actual use and lifecycle changes. This would be relevant to a different issue such as: Software licenses are renewed using last year's device counts despite major decommissioning. In the present case, the most directly relevant principle is: Governance must detect changes in external obligations and translate them into owned controls. The governing distinction is: Governance must detect changes in external obligations and translate them into owned controls.
C:Compliance obligations vary by location, data activity, contract and regulatory scope. This would be relevant to a different issue such as: A multinational cloud project assumes a control compliant in one country automatically satisfies every jurisdiction in which data is processed. In the present case, the most directly relevant principle is: Governance must detect changes in external obligations and translate them into owned controls. The governing distinction is: Governance must detect changes in external obligations and translate them into owned controls.
D:Resource governance should use accurate inventory and allocation evidence before investment. This would be relevant to a different issue such as: An infrastructure team buys additional servers while idle compatible capacity remains unallocated in another business unit. In the present case, the most directly relevant principle is: Governance must detect changes in external obligations and translate them into owned controls. The governing distinction is: Governance must detect changes in external obligations and translate them into owned controls.
Question 542
Management reports that this issue has been corrected: A cloud provider's assurance report covers physical facilities but the customer's tenant encryption and IAM are untested. Which result would provide the STRONGEST assurance that the issue is corrected?
- Audit evidence shows all material responsibilities tested by the appropriate party.
- An unapproved image fails deployment while approved images retain evidence of origin.
- Regional implementations satisfy both corporate security intent and applicable legal obligations.
- Controlled threshold simulations generate timely alerts and documented response.
Explanation
Correct Answer
A:Audit evidence shows all material responsibilities tested by the appropriate party. It addresses cloud and virtualized environments. Underlying audit concern: Provider assurances do not automatically cover customer-operated security responsibilities.
Incorrect Answers
B:An unapproved image fails deployment while approved images retain evidence of origin. This would be relevant to a different issue such as: A container orchestration platform admits unverified public images into a payment workload namespace. In the present case, the most directly relevant verification is: Audit evidence shows all material responsibilities tested by the appropriate party. The governing distinction is: Provider assurances do not automatically cover customer-operated security responsibilities.
C:Regional implementations satisfy both corporate security intent and applicable legal obligations. This would be relevant to a different issue such as: A regional business copies a global security baseline but has no documented exceptions for local privacy restrictions. In the present case, the most directly relevant verification is: Audit evidence shows all material responsibilities tested by the appropriate party. The governing distinction is: Provider assurances do not automatically cover customer-operated security responsibilities.
D: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: Audit evidence shows all material responsibilities tested by the appropriate party. The governing distinction is: Provider assurances do not automatically cover customer-operated security responsibilities.
Question 543
Before reaching an audit conclusion, consider: After a malware outbreak is closed, identical infections recur because no root-cause or control improvement work is assigned. Which evidence should the auditor review FIRST to evaluate this risk?
- Compare incident reports, repeated vulnerabilities, eradication evidence and lessons logs.
- Review acquisition authorization, image hashes, timestamps and custody transfers.
- Inspect incident timeline, affected identities, lateral movement and backup integrity.
- Define incident window, available provider logs, retention limits and relevant account events.
Explanation
Correct Answer
A:Compare incident reports, repeated vulnerabilities, eradication evidence and lessons logs. The governing principle is: Incident lessons learned should improve preventive, detective and response controls.
Incorrect Answers
B:Review acquisition authorization, image hashes, timestamps and custody transfers. This would be relevant to a different issue such as: An investigator copies a suspect laptop disk without recording who handled it or whether the image changed. In the present case, the most directly relevant audit step is: Compare incident reports, repeated vulnerabilities, eradication evidence and lessons logs. The governing distinction is: Incident lessons learned should improve preventive, detective and response controls.
C:Inspect incident timeline, affected identities, lateral movement and backup integrity. This would be relevant to a different issue such as: A ransomware incident plan focuses on restoring files but omits containment of compromised privileged identities. In the present case, the most directly relevant audit step is: Compare incident reports, repeated vulnerabilities, eradication evidence and lessons logs. The governing distinction is: Incident lessons learned should improve preventive, detective and response controls.
D:Define incident window, available provider logs, retention limits and relevant account events. This would be relevant to a different issue such as: A cloud incident investigator exports only the latest activity logs, omitting records from the suspected initial compromise. In the present case, the most directly relevant audit step is: Compare incident reports, repeated vulnerabilities, eradication evidence and lessons logs. The governing distinction is: Incident lessons learned should improve preventive, detective and response controls.
Question 544
An IS auditor evaluates this situation: Different departments adopt incompatible master-data formats for the same customer identifier. Which audit principle MOST directly applies to this situation?
- Technology strategy should translate enterprise value objectives into measurable performance outcomes.
- Architectural deviations require formal risk evaluation and ownership.
- Third-party governance must extend material controls and data obligations to subcontractors.
- Enterprise architecture must account for interoperability, information definitions and data flow consistency.
Explanation
Correct Answer
D:Enterprise architecture must account for interoperability, information definitions and data flow consistency. The corresponding audit procedure is: Trace data schemas, interface mappings, downstream consumers and quality defects.
Incorrect Answers
A:Technology strategy should translate enterprise value objectives into measurable performance outcomes. This would be relevant to a different issue such as: An IT strategy document lists new tools but has no targets for customer availability or service costs. In the present case, the most directly relevant principle is: Enterprise architecture must account for interoperability, information definitions and data flow consistency. The governing distinction is: Enterprise architecture must account for interoperability, information definitions and data flow consistency.
B:Architectural deviations require formal risk evaluation and ownership. This would be relevant to a different issue such as: A cloud architecture exception bypasses the organization's target zero-trust network segmentation without review. In the present case, the most directly relevant principle is: Enterprise architecture must account for interoperability, information definitions and data flow consistency. The governing distinction is: Enterprise architecture must account for interoperability, information definitions and data flow consistency.
C:Third-party governance must extend material controls and data obligations to subcontractors. This would be relevant to a different issue such as: A subcontractor stores confidential records in a region excluded by the prime provider's contract. In the present case, the most directly relevant principle is: Enterprise architecture must account for interoperability, information definitions and data flow consistency. The governing distinction is: Enterprise architecture must account for interoperability, information definitions and data flow consistency.
Question 545
Before reaching an audit conclusion, consider: Multiple business units publish different values for the same customer account status without a nominated data steward. Which evidence should the auditor review FIRST to evaluate this risk?
- Compare current capability maps, technical dependencies and operating costs.
- Reconcile discrepancies, lineage, quality metrics and stewardship assignments.
- Map processing copies, retention rules, purge jobs and legal hold exceptions.
- Trace project approvals to business strategies, benefit owners and funding criteria.
Explanation
Correct Answer
B:Reconcile discrepancies, lineage, quality metrics and stewardship assignments. The governing principle is: Data governance requires clear ownership, quality rules and authorized source definitions.
Incorrect Answers
A:Compare current capability maps, technical dependencies and operating costs. This would be relevant to a different issue such as: A new acquisition builds duplicate identity and messaging platforms without considering existing enterprise capabilities. In the present case, the most directly relevant audit step is: Reconcile discrepancies, lineage, quality metrics and stewardship assignments. The governing distinction is: Data governance requires clear ownership, quality rules and authorized source definitions.
C:Map processing copies, retention rules, purge jobs and legal hold exceptions. This would be relevant to a different issue such as: A cloud analytics environment retains raw regulated data after the approved business retention period. In the present case, the most directly relevant audit step is: Reconcile discrepancies, lineage, quality metrics and stewardship assignments. The governing distinction is: Data governance requires clear ownership, quality rules and authorized source definitions.
D:Trace project approvals to business strategies, benefit owners and funding criteria. This would be relevant to a different issue such as: A technology steering group approves projects without showing how they support the organization's strategic priorities. In the present case, the most directly relevant audit step is: Reconcile discrepancies, lineage, quality metrics and stewardship assignments. The governing distinction is: Data governance requires clear ownership, quality rules and authorized source definitions.
Question 546
An IS auditor is preparing recommendations after reviewing this situation: A recovery site has servers but no validated link to the payment network after a facility loss. Which recommendation would BEST address the identified weakness?
- Recommend auditable emergency change controls with post-implementation oversight.
- Recommend input validation, exception handling and end-to-end reconciliation.
- Recommend integrated DR connectivity testing and remediation of broken dependencies.
- Recommend application-aware recovery sequencing and formal acceptance checks.
Explanation
Correct Answer
C:Recommend integrated DR connectivity testing and remediation of broken dependencies. The relevant control principle is: Disaster recovery design must cover external connectivity and noncompute dependencies. A meaningful follow-up should establish: A site-loss simulation processes representative payments through the recovery location.
Incorrect Answers
A:Recommend auditable emergency change controls with post-implementation oversight. This would be relevant to a different issue such as: An urgent firewall change is deployed without a ticket and later cannot be attributed to an approver. In the present case, the most directly relevant recommendation is: Recommend integrated DR connectivity testing and remediation of broken dependencies. The governing distinction is: Disaster recovery design must cover external connectivity and noncompute dependencies.
B:Recommend input validation, exception handling and end-to-end reconciliation. This would be relevant to a different issue such as: An inventory API responds successfully while silently truncating long product descriptions during integration. In the present case, the most directly relevant recommendation is: Recommend integrated DR connectivity testing and remediation of broken dependencies. The governing distinction is: Disaster recovery design must cover external connectivity and noncompute dependencies.
D:Recommend application-aware recovery sequencing and formal acceptance checks. This would be relevant to a different issue such as: A disaster recovery runbook lists server boot order but omits database integrity and application acceptance tests. In the present case, the most directly relevant recommendation is: Recommend integrated DR connectivity testing and remediation of broken dependencies. The governing distinction is: Disaster recovery design must cover external connectivity and noncompute dependencies.
Question 547
An IS auditor is preparing recommendations after reviewing this situation: A threat-intelligence feed generates blocks for obsolete indicators without regular relevance review. Which recommendation would BEST address the identified weakness?
- Recommend risk-based detection rules linking authentication anomalies to privileged activity.
- Recommend targeted follow-up training and safe reporting reinforcement based on measured gaps.
- Recommend governed indicator lifecycle and context-based tuning.
- Recommend restricted emergency access with independent after-use review and periodic exercises.
Explanation
Correct Answer
C:Recommend governed indicator lifecycle and context-based tuning. The relevant control principle is: Threat monitoring should assess indicator freshness, context and false-positive effects. A meaningful follow-up should establish: Expired indicators are retired and material active threats remain detectable.
Incorrect Answers
A:Recommend risk-based detection rules linking authentication anomalies to privileged activity. 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 recommendation is: Recommend governed indicator lifecycle and context-based tuning. The governing distinction is: Threat monitoring should assess indicator freshness, context and false-positive effects.
B:Recommend targeted follow-up training and safe reporting reinforcement based on measured gaps. This would be relevant to a different issue such as: Annual phishing training records show high completion but employees repeatedly submit credentials to simulated malicious sites. In the present case, the most directly relevant recommendation is: Recommend governed indicator lifecycle and context-based tuning. The governing distinction is: Threat monitoring should assess indicator freshness, context and false-positive effects.
D:Recommend restricted emergency access with independent after-use review and periodic exercises. 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 recommendation is: Recommend governed indicator lifecycle and context-based tuning. The governing distinction is: Threat monitoring should assess indicator freshness, context and false-positive effects.
Question 548
Management reports that this issue has been corrected: A firewall has a broad any-to-any allow rule placed ahead of new restrictions for a regulated application. Which result would provide the STRONGEST assurance that the issue is corrected?
- A controlled upstream power loss leaves essential services within continuity targets.
- Representative allowed and denied flows match the intended restrictive rules.
- All in-scope devices either report healthy protection or have approved tracked exceptions.
- A controlled renewal leaves the active endpoint with a valid trusted certificate.
Explanation
Correct Answer
B:Representative allowed and denied flows match the intended restrictive rules. It addresses network and end-point security. Underlying audit concern: Policy order and scope determine the effective network control, not the existence of later rules.
Incorrect Answers
A:A controlled upstream power loss leaves essential services within continuity targets. This would be relevant to a different issue such as: A data center's redundant power feeds terminate at the same upstream distribution panel. In the present case, the most directly relevant verification is: Representative allowed and denied flows match the intended restrictive rules. The governing distinction is: Policy order and scope determine the effective network control, not the existence of later rules.
C:All in-scope devices either report healthy protection or have approved tracked exceptions. This would be relevant to a different issue such as: An endpoint protection console reports agents installed but several laptops have not checked in for months. In the present case, the most directly relevant verification is: Representative allowed and denied flows match the intended restrictive rules. The governing distinction is: Policy order and scope determine the effective network control, not the existence of later rules.
D:A controlled renewal leaves the active endpoint with a valid trusted certificate. This would be relevant to a different issue such as: An internal portal outage follows certificate expiration despite an automated renewal job that reported success. In the present case, the most directly relevant verification is: Representative allowed and denied flows match the intended restrictive rules. The governing distinction is: Policy order and scope determine the effective network control, not the existence of later rules.
Question 549
Management reports that this issue has been corrected: Regional IT teams follow conflicting change-control procedures even though one enterprise policy applies. Which result would provide the STRONGEST assurance that the issue is corrected?
- Sample changes in each region follow the same mandatory authorization and evidence rules.
- Affected cloud deployments follow a documented approved standard or valid exception.
- A new requirement is assessed, implemented and evidenced before its effective date.
- Procurement decisions cite capacity forecasts and approved constraints rather than assumptions.
Explanation
Correct Answer
A:Sample changes in each region follow the same mandatory authorization and evidence rules. It addresses it policies, standards, procedures and practices. Underlying audit concern: Inconsistent procedures can weaken implementation of a common governance control.
Incorrect Answers
B:Affected cloud deployments follow a documented approved standard or valid exception. This would be relevant to a different issue such as: A legacy security standard remains mandatory even though new approved cloud services cannot technically meet it. In the present case, the most directly relevant verification is: Sample changes in each region follow the same mandatory authorization and evidence rules. The governing distinction is: Inconsistent procedures can weaken implementation of a common governance control.
C:A new requirement is assessed, implemented and evidenced before its effective date. This would be relevant to a different issue such as: A bank's compliance register still lists a superseded regulatory reporting deadline after a rule change. In the present case, the most directly relevant verification is: Sample changes in each region follow the same mandatory authorization and evidence rules. The governing distinction is: Inconsistent procedures can weaken implementation of a common governance control.
D:Procurement decisions cite capacity forecasts and approved constraints rather than assumptions. This would be relevant to a different issue such as: An infrastructure team buys additional servers while idle compatible capacity remains unallocated in another business unit. In the present case, the most directly relevant verification is: Sample changes in each region follow the same mandatory authorization and evidence rules. The governing distinction is: Inconsistent procedures can weaken implementation of a common governance control.
Question 550
Management reports that this issue has been corrected: A continuous monitoring dashboard reports zero failed access attempts because its collection job stopped three days ago. Which result would provide the STRONGEST assurance that the issue is corrected?
- Reported exceptions are reproducible and supported by transaction evidence rather than model scores alone.
- The final report enables leadership to understand exposure and track a measurable remediation.
- Workpapers trace each material reporting risk to an appropriate control and test result.
- Known test events appear and processing totals reconcile after ingestion recovery.
Explanation
Correct Answer
D:Known test events appear and processing totals reconcile after ingestion recovery. It addresses audit data analytics. Underlying audit concern: A zero-exception result is unreliable if data completeness and pipeline health are unverified.
Incorrect Answers
A:Reported exceptions are reproducible and supported by transaction evidence rather than model scores alone. This would be relevant to a different issue such as: An anomaly model ranks high-value payments as suspicious but the auditor cannot explain its scoring or false-positive rate. In the present case, the most directly relevant verification is: Known test events appear and processing totals reconcile after ingestion recovery. The governing distinction is: A zero-exception result is unreliable if data completeness and pipeline health are unverified.
B:The final report enables leadership to understand exposure and track a measurable remediation. This would be relevant to a different issue such as: A report calls a firewall exception critical but provides no business impact, cause or responsible owner. In the present case, the most directly relevant verification is: Known test events appear and processing totals reconcile after ingestion recovery. The governing distinction is: A zero-exception result is unreliable if data completeness and pipeline health are unverified.
C:Workpapers trace each material reporting risk to an appropriate control and test result. This would be relevant to a different issue such as: A financial reporting controls audit tests only the cloud provider's availability status but ignores the customer's application controls. In the present case, the most directly relevant verification is: Known test events appear and processing totals reconcile after ingestion recovery. The governing distinction is: A zero-exception result is unreliable if data completeness and pipeline health are unverified.