Isaca CISA Practice Test 20
Question 190
An IS auditor evaluates this situation: An endpoint dashboard displays every system as healthy even though remote devices have stopped forwarding telemetry. Which audit principle MOST directly applies to this situation?
- Physical access controls must cover alternate entry points and generate reliable access evidence.
- Mobile management should enforce enrollment, encryption and revocation when devices are lost.
- Security monitoring should correlate relevant signals into actionable risk scenarios.
- Monitoring reliability requires completeness, heartbeat and sensor-health validation.
Explanation
Correct Answer
D:Monitoring reliability requires completeness, heartbeat and sensor-health validation. The corresponding audit procedure is: Reconcile endpoint inventory, last-seen data, collection errors and alerting thresholds.
Incorrect Answers
A:Physical access controls must cover alternate entry points and generate reliable access evidence. 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 principle is: Monitoring reliability requires completeness, heartbeat and sensor-health validation. The governing distinction is: Monitoring reliability requires completeness, heartbeat and sensor-health validation.
B:Mobile management should enforce enrollment, encryption and revocation when devices are lost. This would be relevant to a different issue such as: A lost employee phone still accesses confidential mail because device compliance and remote wipe were never enabled. In the present case, the most directly relevant principle is: Monitoring reliability requires completeness, heartbeat and sensor-health validation. The governing distinction is: Monitoring reliability requires completeness, heartbeat and sensor-health validation.
C:Security monitoring should correlate relevant signals into actionable risk scenarios. 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 principle is: Monitoring reliability requires completeness, heartbeat and sensor-health validation. The governing distinction is: Monitoring reliability requires completeness, heartbeat and sensor-health validation.
Question 191
An IS auditor is preparing recommendations after reviewing this situation: A cloud event bus drops messages during an outage and consuming systems never replay them. Which recommendation would BEST address the identified weakness?
- Recommend durable queuing, replay controls and dead-letter monitoring.
- Recommend an authoritative owner and controlled update conflict handling.
- Recommend limiting the integration to approved read permissions with reviewed exceptions.
- Recommend an accurate component dependency inventory and risk review of single points of failure.
Explanation
Correct Answer
A:Recommend durable queuing, replay controls and dead-letter monitoring. The relevant control principle is: Reliable integration requires durable delivery, recovery and monitoring of unprocessed events. A meaningful follow-up should establish: An outage simulation shows no unexplained data loss and controlled eventual reconciliation.
Incorrect Answers
B:Recommend an authoritative owner and controlled update conflict handling. 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 recommendation is: Recommend durable queuing, replay controls and dead-letter monitoring. The governing distinction is: Reliable integration requires durable delivery, recovery and monitoring of unprocessed events.
C:Recommend limiting the integration to approved read permissions with reviewed exceptions. This would be relevant to a different issue such as: A production database account has unrestricted privileges for a read-only reporting integration. In the present case, the most directly relevant recommendation is: Recommend durable queuing, replay controls and dead-letter monitoring. The governing distinction is: Reliable integration requires durable delivery, recovery and monitoring of unprocessed events.
D: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 durable queuing, replay controls and dead-letter monitoring. The governing distinction is: Reliable integration requires durable delivery, recovery and monitoring of unprocessed events.
Question 192
An IS auditor is preparing recommendations after reviewing this situation: A payroll system uses post-payment anomaly reports but has no approval requirement for changing bank accounts. Which recommendation would BEST address the identified weakness?
- Recommend an appropriately authorized preventive change control with detective review as a complementary layer.
- Obtain a reproducible system-generated extract and corroborate key entries independently.
- Recommend distinct authenticated approvers and enforced separation of duties.
- Select a defensible sample across relevant processing periods and investigate exceptions.
Explanation
Correct Answer
A:Recommend an appropriately authorized preventive change control with detective review as a complementary layer. The relevant control principle is: Detective review does not automatically replace an effective preventive authorization control. A meaningful follow-up should establish: A test change cannot bypass approval, and independent exception review still operates.
Incorrect Answers
B:Obtain a reproducible system-generated extract and corroborate key entries independently. This would be relevant to a different issue such as: A system owner provides a screenshot of an access list without a timestamp or source-system identification. In the present case, the most directly relevant recommendation is: Recommend an appropriately authorized preventive change control with detective review as a complementary layer. The governing distinction is: Detective review does not automatically replace an effective preventive authorization control.
C:Recommend distinct authenticated approvers and enforced separation of duties. This would be relevant to a different issue such as: A new security control requires two operators to approve destructive data deletion, but both approvals can use one shared account. In the present case, the most directly relevant recommendation is: Recommend an appropriately authorized preventive change control with detective review as a complementary layer. The governing distinction is: Detective review does not automatically replace an effective preventive authorization control.
D:Select a defensible sample across relevant processing periods and investigate exceptions. This would be relevant to a different issue such as: An auditor samples only Monday transactions to conclude that weekend payments were controlled effectively. In the present case, the most directly relevant recommendation is: Recommend an appropriately authorized preventive change control with detective review as a complementary layer. The governing distinction is: Detective review does not automatically replace an effective preventive authorization control.
Question 193
Before reaching an audit conclusion, consider: A financial application retains operational logs for only a week although investigation rules require six months. Which evidence should the auditor review FIRST to evaluate this risk?
- Inspect backup integrity, encryption keys, retention copies and last restore test.
- Compare NTP status, clock drift, timezone settings and source event timestamps.
- Review approved retention rules, system purge settings, storage capacity and sampled history.
- Trace service name resolution, provider SLAs, failure modes and fallback arrangements.
Explanation
Correct Answer
C:Review approved retention rules, system purge settings, storage capacity and sampled history. The governing principle is: Log retention should align with business, legal, incident and privacy requirements.
Incorrect Answers
A:Inspect backup integrity, encryption keys, retention copies and last restore test. This would be relevant to a different issue such as: An enterprise calls backups successful because jobs complete, but no recent restoration test has been performed. In the present case, the most directly relevant audit step is: Review approved retention rules, system purge settings, storage capacity and sampled history. The governing distinction is: Log retention should align with business, legal, incident and privacy requirements.
B:Compare NTP status, clock drift, timezone settings and source event timestamps. This would be relevant to a different issue such as: Multiple servers use unsynchronized clocks so a transaction appears to complete before it begins. In the present case, the most directly relevant audit step is: Review approved retention rules, system purge settings, storage capacity and sampled history. The governing distinction is: Log retention should align with business, legal, incident and privacy requirements.
D:Trace service name resolution, provider SLAs, failure modes and fallback arrangements. This would be relevant to a different issue such as: A supplier dependency map omits a critical cloud DNS service used by every customer-facing application. In the present case, the most directly relevant audit step is: Review approved retention rules, system purge settings, storage capacity and sampled history. The governing distinction is: Log retention should align with business, legal, incident and privacy requirements.
Question 194
An IS auditor is preparing recommendations after reviewing this situation: A merger adds a regulated customer database after the audit plan was approved, but the plan is treated as unchangeable. Which recommendation would BEST address the identified weakness?
- Reprioritize the plan toward the higher-risk system and record the risk rationale.
- Complete and document supervisory review before finalizing the report.
- Repair the approved monitoring feed and add completeness checks before reliance.
- Perform a documented plan refresh with the audit committee's appropriate approval.
Explanation
Correct Answer
D:Perform a documented plan refresh with the audit committee's appropriate approval. The relevant control principle is: Risk-based audit planning is dynamic when business context and material exposures change. A meaningful follow-up should establish: A revised audit universe and schedule explicitly cover newly material acquisition risks.
Incorrect Answers
A:Reprioritize the plan toward the higher-risk system and record the risk rationale. This would be relevant to a different issue such as: The annual audit plan gives equal effort to a low-risk intranet and a newly acquired payment processing platform. In the present case, the most directly relevant recommendation is: Perform a documented plan refresh with the audit committee's appropriate approval. The governing distinction is: Risk-based audit planning is dynamic when business context and material exposures change.
B:Complete and document supervisory review before finalizing the report. This would be relevant to a different issue such as: An audit manager signs the report although a junior tester's exceptions have not received independent review. In the present case, the most directly relevant recommendation is: Perform a documented plan refresh with the audit committee's appropriate approval. The governing distinction is: Risk-based audit planning is dynamic when business context and material exposures change.
C:Repair the approved monitoring feed and add completeness checks before reliance. This would be relevant to a different issue such as: A continuous monitoring dashboard reports zero failed access attempts because its collection job stopped three days ago. In the present case, the most directly relevant recommendation is: Perform a documented plan refresh with the audit committee's appropriate approval. The governing distinction is: Risk-based audit planning is dynamic when business context and material exposures change.
Question 195
An IS auditor is preparing recommendations after reviewing this situation: Management offers ten handpicked successful failover demonstrations as evidence that every critical service has tested recovery. Which recommendation would BEST address the identified weakness?
- Decline the benefit, disclose the approach and apply the organization's ethics process.
- Set defensible risk-based objectives and seek audit leadership approval for any scope restriction.
- Choose an auditor-controlled sample that includes untested, recently changed and high-impact services.
- Rebuild the population including historical departures before selecting test items.
Explanation
Correct Answer
C:Choose an auditor-controlled sample that includes untested, recently changed and high-impact services. The relevant control principle is: Judgmentally selected favorable examples cannot support a population-wide effectiveness conclusion. A meaningful follow-up should establish: Selected items reconcile to the inventory and any gaps are reflected in the final conclusion.
Incorrect Answers
A:Decline the benefit, disclose the approach and apply the organization's ethics process. This would be relevant to a different issue such as: An external contractor offers the auditor a valuable gift while a supplier compliance assessment is being finalized. In the present case, the most directly relevant recommendation is: Choose an auditor-controlled sample that includes untested, recently changed and high-impact services. The governing distinction is: Judgmentally selected favorable examples cannot support a population-wide effectiveness conclusion.
B: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: Choose an auditor-controlled sample that includes untested, recently changed and high-impact services. The governing distinction is: Judgmentally selected favorable examples cannot support a population-wide effectiveness conclusion.
D:Rebuild the population including historical departures before selecting test items. This would be relevant to a different issue such as: A database access audit receives a file containing only current active users although it must assess leavers over the last quarter. In the present case, the most directly relevant recommendation is: Choose an auditor-controlled sample that includes untested, recently changed and high-impact services. The governing distinction is: Judgmentally selected favorable examples cannot support a population-wide effectiveness conclusion.
Question 196
Before reaching an audit conclusion, consider: Continuity leadership bases recovery priorities on annual revenue only and ignores safety-critical low-volume services. Which evidence should the auditor review FIRST to evaluate this risk?
- Review nonfinancial impacts, dependency chains and stakeholder severity scales.
- Trace service name resolution, provider SLAs, failure modes and fallback arrangements.
- Quantify financial and operational consequences of lost transactions over time.
- Inspect role grants, query activity, service dependencies and account ownership.
Explanation
Correct Answer
A:Review nonfinancial impacts, dependency chains and stakeholder severity scales. The governing principle is: Business impact includes legal, safety, customer and operational harm beyond revenue.
Incorrect Answers
B:Trace service name resolution, provider SLAs, failure modes and fallback arrangements. This would be relevant to a different issue such as: A supplier dependency map omits a critical cloud DNS service used by every customer-facing application. In the present case, the most directly relevant audit step is: Review nonfinancial impacts, dependency chains and stakeholder severity scales. The governing distinction is: Business impact includes legal, safety, customer and operational harm beyond revenue.
C:Quantify financial and operational consequences of lost transactions over time. This would be relevant to a different issue such as: A sales system's backup schedule is chosen before the business determines acceptable data loss. In the present case, the most directly relevant audit step is: Review nonfinancial impacts, dependency chains and stakeholder severity scales. The governing distinction is: Business impact includes legal, safety, customer and operational harm beyond revenue.
D:Inspect role grants, query activity, service dependencies and account ownership. This would be relevant to a different issue such as: A production database account has unrestricted privileges for a read-only reporting integration. In the present case, the most directly relevant audit step is: Review nonfinancial impacts, dependency chains and stakeholder severity scales. The governing distinction is: Business impact includes legal, safety, customer and operational harm beyond revenue.
Question 197
An IS auditor evaluates this situation: A production database account has unrestricted privileges for a read-only reporting integration. Which audit principle MOST directly applies to this situation?
- Database least privilege should restrict access by actual application function.
- Database operations require monitored storage, retention and recovery capacity.
- Resilience planning must include external and supporting infrastructure dependencies.
- End-to-end service availability depends on all critical infrastructure and application components.
Explanation
Correct Answer
A:Database least privilege should restrict access by actual application function. The corresponding audit procedure is: Inspect role grants, query activity, service dependencies and account ownership.
Incorrect Answers
B:Database operations require monitored storage, retention and recovery capacity. This would be relevant to a different issue such as: Database transaction logs fill the only disk volume and cause a payment service outage. In the present case, the most directly relevant principle is: Database least privilege should restrict access by actual application function. The governing distinction is: Database least privilege should restrict access by actual application function.
C:Resilience planning must include external and supporting infrastructure dependencies. This would be relevant to a different issue such as: A supplier dependency map omits a critical cloud DNS service used by every customer-facing application. In the present case, the most directly relevant principle is: Database least privilege should restrict access by actual application function. The governing distinction is: Database least privilege should restrict access by actual application function.
D:End-to-end service availability depends on all critical infrastructure and application components. 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 principle is: Database least privilege should restrict access by actual application function. The governing distinction is: Database least privilege should restrict access by actual application function.
Question 198
An IS auditor evaluates this situation: A cloud-hosted application has healthy virtual machines but customer logins fail when its external identity service is unavailable. Which audit principle MOST directly applies to this situation?
- Infrastructure health alone does not represent availability of external service dependencies.
- Severe incidents require priority-based classification and timely escalation paths.
- End-to-end service availability depends on all critical infrastructure and application components.
- Continuity communication should address external dependencies and affected stakeholders.
Explanation
Correct Answer
A:Infrastructure health alone does not represent availability of external service dependencies. The corresponding audit procedure is: Trace authentication flows, identity-provider status and documented contingency requirements.
Incorrect Answers
B:Severe incidents require priority-based classification and timely escalation paths. This would be relevant to a different issue such as: A major cyber outage is escalated only after normal helpdesk response times expire. In the present case, the most directly relevant principle is: Infrastructure health alone does not represent availability of external service dependencies. The governing distinction is: Infrastructure health alone does not represent availability of external service dependencies.
C:End-to-end service availability depends on all critical infrastructure and application components. 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 principle is: Infrastructure health alone does not represent availability of external service dependencies. The governing distinction is: Infrastructure health alone does not represent availability of external service dependencies.
D:Continuity communication should address external dependencies and affected stakeholders. This would be relevant to a different issue such as: A regional outage exercise reveals that business partners were never included in the communications tree. In the present case, the most directly relevant principle is: Infrastructure health alone does not represent availability of external service dependencies. The governing distinction is: Infrastructure health alone does not represent availability of external service dependencies.
Question 199
Management reports that this issue has been corrected: Different departments adopt incompatible master-data formats for the same customer identifier. Which result would provide the STRONGEST assurance that the issue is corrected?
- Cross-system records reconcile to approved definitions and downstream errors decline.
- Selected projects link to approved goals and post-investment benefit monitoring.
- Approved exceptions have time limits, compensating controls and technical enforcement evidence.
- Verified storage locations and downstream contracts align with permitted processing.
Explanation
Correct Answer
A:Cross-system records reconcile to approved definitions and downstream errors decline. It addresses enterprise architecture and considerations. Underlying audit concern: Enterprise architecture must account for interoperability, information definitions and data flow consistency.
Incorrect Answers
B:Selected projects link to approved goals and post-investment benefit monitoring. 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 verification is: Cross-system records reconcile to approved definitions and downstream errors decline. The governing distinction is: Enterprise architecture must account for interoperability, information definitions and data flow consistency.
C:Approved exceptions have time limits, compensating controls and technical enforcement evidence. 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 verification is: Cross-system records reconcile to approved definitions and downstream errors decline. The governing distinction is: Enterprise architecture must account for interoperability, information definitions and data flow consistency.
D:Verified storage locations and downstream contracts align with permitted processing. 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 verification is: Cross-system records reconcile to approved definitions and downstream errors decline. The governing distinction is: Enterprise architecture must account for interoperability, information definitions and data flow consistency.
Question 200
Management reports that this issue has been corrected: Auditors receive conflicting statements from administrators about whether an encryption setting was enabled during the test period. Which result would provide the STRONGEST assurance that the issue is corrected?
- A revised audit universe and schedule explicitly cover newly material acquisition risks.
- Assurance evidence spans the review period without unexplained reliance gaps.
- The audit conclusion cites verifiable settings effective during the scope period.
- Workpapers trace each material reporting risk to an appropriate control and test result.
Explanation
Correct Answer
C:The audit conclusion cites verifiable settings effective during the scope period. It addresses audit evidence collection techniques. Underlying audit concern: Inquiry alone is weaker than independently corroborated technical evidence.
Incorrect Answers
A:A revised audit universe and schedule explicitly cover newly material acquisition risks. This would be relevant to a different issue such as: A merger adds a regulated customer database after the audit plan was approved, but the plan is treated as unchangeable. In the present case, the most directly relevant verification is: The audit conclusion cites verifiable settings effective during the scope period. The governing distinction is: Inquiry alone is weaker than independently corroborated technical evidence.
B:Assurance evidence spans the review period without unexplained reliance gaps. This would be relevant to a different issue such as: A supplier gives the audit team a third-party control report that expired before the review period. In the present case, the most directly relevant verification is: The audit conclusion cites verifiable settings effective during the scope period. The governing distinction is: Inquiry alone is weaker than independently corroborated technical evidence.
D: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: The audit conclusion cites verifiable settings effective during the scope period. The governing distinction is: Inquiry alone is weaker than independently corroborated technical evidence.