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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?

  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.

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?

  1. License governance should reconcile entitlement, actual use and lifecycle changes.
  2. Governance must detect changes in external obligations and translate them into owned controls.
  3. Compliance obligations vary by location, data activity, contract and regulatory scope.
  4. 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?

  1. Audit evidence shows all material responsibilities tested by the appropriate party.
  2. An unapproved image fails deployment while approved images retain evidence of origin.
  3. Regional implementations satisfy both corporate security intent and applicable legal obligations.
  4. 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?

  1. Compare incident reports, repeated vulnerabilities, eradication evidence and lessons logs.
  2. Review acquisition authorization, image hashes, timestamps and custody transfers.
  3. Inspect incident timeline, affected identities, lateral movement and backup integrity.
  4. 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?

  1. Technology strategy should translate enterprise value objectives into measurable performance outcomes.
  2. Architectural deviations require formal risk evaluation and ownership.
  3. Third-party governance must extend material controls and data obligations to subcontractors.
  4. 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?

  1. Compare current capability maps, technical dependencies and operating costs.
  2. Reconcile discrepancies, lineage, quality metrics and stewardship assignments.
  3. Map processing copies, retention rules, purge jobs and legal hold exceptions.
  4. 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?

  1. Recommend auditable emergency change controls with post-implementation oversight.
  2. Recommend input validation, exception handling and end-to-end reconciliation.
  3. Recommend integrated DR connectivity testing and remediation of broken dependencies.
  4. 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?

  1. Recommend risk-based detection rules linking authentication anomalies to privileged activity.
  2. Recommend targeted follow-up training and safe reporting reinforcement based on measured gaps.
  3. Recommend governed indicator lifecycle and context-based tuning.
  4. 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?

  1. A controlled upstream power loss leaves essential services within continuity targets.
  2. Representative allowed and denied flows match the intended restrictive rules.
  3. All in-scope devices either report healthy protection or have approved tracked exceptions.
  4. 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?

  1. Sample changes in each region follow the same mandatory authorization and evidence rules.
  2. Affected cloud deployments follow a documented approved standard or valid exception.
  3. A new requirement is assessed, implemented and evidenced before its effective date.
  4. 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?

  1. Reported exceptions are reproducible and supported by transaction evidence rather than model scores alone.
  2. The final report enables leadership to understand exposure and track a measurable remediation.
  3. Workpapers trace each material reporting risk to an appropriate control and test result.
  4. 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.

Certified Information Systems Auditor (CISA) Practice Tests