CISA Certified Information Systems
Auditor Exam Official Practice Exam
Actual Exam 2026/2027 with Detailed
Rationales | Complete Exam-Style
Questions | Pass Guaranteed – A+
Graded
══════════════════════════════════════
SECTION 1: INFORMATION SYSTEM AUDITING PROCESS Q1 – Q10
══════════════════════════════════════
Question 1 of 50
A regional bank's internal audit department is conducting a risk-based audit of its loan
origination system. The audit manager has asked the team to prioritize testing areas based
on inherent risk rather than control effectiveness. During the planning phase, the audit team
identifies that the loan approval workflow lacks segregation of duties, but compensating
detective controls are in place. The audit manager wants to ensure the scope reflects true
risk exposure.
A. Focus audit testing primarily on the detective controls since they compensate for the lack
of preventive controls
B. Reduce the audit scope because compensating controls lower the overall risk to an
acceptable level
C. Include the lack of segregation of duties as a high-risk area regardless of compensating
controls ✓ CORRECT
D. Defer testing of the loan origination system until the bank implements preventive controls
Correct Answer: C
Rationale: Inherent risk must be assessed independently of control effectiveness; the
absence of segregation of duties in a financial workflow represents high inherent risk that
cannot be fully mitigated by detective controls alone. Compensating controls reduce residual
risk but do not eliminate the underlying inherent risk, which is what risk-based audit planning
prioritizes. On the CISA exam, always distinguish between inherent risk (before controls) and
residual risk (after controls) when scoping an audit.
,Question 2 of 50
A healthcare organization's IS auditor is reviewing the workpapers from a previous audit of
the electronic health records (EHR) system. The prior audit relied heavily on inquiry and
observation as evidence, with minimal use of automated testing tools. The current auditor
needs to validate the accuracy of patient data migration from a legacy system that occurred
six months ago.
A. Interview the IT project manager who oversaw the migration and document their verbal
confirmation
B. Use CAATs to re-perform data validation checks on a sample of migrated patient records
against the source system ✓ CORRECT
C. Review the project charter and meeting minutes to confirm the migration was approved by
senior management
D. Observe the current EHR system in operation to verify that patient data is being entered
correctly
Correct Answer: B
Rationale: Computer-assisted audit techniques (CAATs) provide the most reliable and
efficient evidence for validating data integrity across large datasets, which is essential for
verifying historical data migrations. Inquiry and observation are weaker evidence types
because they are subjective and do not independently verify data accuracy, while project
documentation only confirms authorization, not data quality. When testing data integrity on
the CISA exam, CAATs are the preferred method over manual or subjective evidence
gathering.
Question 3 of 50
A manufacturing firm's audit committee has directed the internal audit function to evaluate
the effectiveness of the organization's IT general controls (ITGCs) before relying on them for
a financial statement audit. The audit team discovers that change management tickets are
frequently approved without documented testing results, and emergency changes bypass the
standard approval workflow.
A. Rely on the change management process as-is since emergency changes are an accepted
industry practice
B. Test a larger sample of changes to compensate for the control deficiencies and still rely
on ITGCs
C. Report the control deficiencies to management and reduce reliance on ITGCs for the
financial audit ✓ CORRECT
D. Perform additional substantive testing on the financial applications to replace the need for
ITGC testing
Correct Answer: C
,Rationale: When ITGCs are found deficient, ISACA standards require the auditor to report the
deficiencies and adjust the audit approach by reducing reliance on those controls and
increasing substantive testing. Simply expanding the sample size does not address the
systemic nature of the control failure, and substantive testing alone cannot fully compensate
for weak ITGCs in a financial audit context. On the CISA exam, remember that control
deficiencies must be reported and the audit strategy adjusted accordingly rather than ignored
or patched with larger samples.
Question 4 of 50
A retail chain's IS auditor is designing a statistical sampling plan to test the accuracy of
point-of-sale (POS) transaction logs across 500 stores. The auditor wants 95% confidence
with a 5% margin of error and needs to determine the appropriate sample size. The
population consists of approximately 50 million transactions annually.
A. Use judgmental sampling to select stores with the highest transaction volumes for testing
B. Calculate the sample size using variable sampling formulas based on the desired
confidence level and population size ✓ CORRECT
C. Test all transactions from a single high-volume store to establish a baseline for the entire
chain
D. Select every 1,000th transaction across all stores using systematic sampling without
calculating sample size
Correct Answer: B
Rationale: Statistical sampling requires formal calculation of sample size based on
confidence level, precision, and population characteristics to ensure the results are
defensible and representative of the entire population. Judgmental sampling introduces bias
by focusing only on high-risk areas, while testing a single store or using arbitrary intervals
without calculation fails to provide statistically valid conclusions. When the CISA exam asks
about sampling design, always look for the answer that applies statistical formulas rather
than convenience or judgment-based approaches.
Question 5 of 50
During an audit of a government agency's procurement system, the IS auditor discovers that
the system administrator has unrestricted access to both the application configuration and
the underlying database. The administrator has also been assigned responsibility for
reviewing system access logs. The audit is being conducted under tight time constraints.
A. Recommend immediately removing the administrator's database access to enforce
segregation of duties
B. Document the finding as a compensating control issue and proceed with the remaining
audit scope
, C. Report the segregation of duties violation as a significant finding and adjust the audit plan
to test for unauthorized changes ✓ CORRECT
D. Accept the risk since government agencies typically have limited IT staffing and cannot
enforce strict separation
Correct Answer: C
Rationale: Segregation of duties is a fundamental internal control principle, and an
administrator with both configuration and database access who also reviews their own logs
creates a significant risk of undetected unauthorized changes. The auditor must report this
as a significant finding and expand testing to detect potential integrity issues, rather than
accepting the risk or treating it as a compensating control. On the CISA exam, segregation of
duties violations in critical systems are always significant findings that require expanded
testing, not acceptance or workarounds.
Question 6 of 50
A financial services firm's external auditor is reviewing the internal audit department's
workpapers for the previous year's IT general controls audit. The external auditor notes that
the internal audit team used continuous auditing techniques to monitor privileged access
changes in real-time throughout the year. The external auditor wants to determine whether
this approach provides sufficient appropriate evidence.
A. Conclude that continuous auditing provides stronger evidence than periodic testing
because it covers the entire period
B. Evaluate whether the continuous auditing scripts were independently validated and whether
exceptions were properly investigated ✓ CORRECT
C. Accept the continuous auditing results without review since the internal audit function is
independent
D. Request that the internal audit team re-perform the continuous auditing procedures
manually for verification
Correct Answer: B
Rationale: The reliability of continuous auditing depends on the integrity of the underlying
scripts and the rigor of exception follow-up, not merely the fact that monitoring occurs
continuously. The external auditor must assess whether the automated tools were
independently validated and whether identified anomalies were properly investigated, as
continuous monitoring with flawed scripts provides false assurance. When evaluating CAATs
or continuous auditing on the CISA exam, always verify the validation of tools and the
investigation of exceptions rather than assuming continuous equals reliable.
Question 7 of 50
An IS auditor at a pharmaceutical company is planning an audit of the batch processing
controls for the drug formulation tracking system. The auditor needs to determine whether
Auditor Exam Official Practice Exam
Actual Exam 2026/2027 with Detailed
Rationales | Complete Exam-Style
Questions | Pass Guaranteed – A+
Graded
══════════════════════════════════════
SECTION 1: INFORMATION SYSTEM AUDITING PROCESS Q1 – Q10
══════════════════════════════════════
Question 1 of 50
A regional bank's internal audit department is conducting a risk-based audit of its loan
origination system. The audit manager has asked the team to prioritize testing areas based
on inherent risk rather than control effectiveness. During the planning phase, the audit team
identifies that the loan approval workflow lacks segregation of duties, but compensating
detective controls are in place. The audit manager wants to ensure the scope reflects true
risk exposure.
A. Focus audit testing primarily on the detective controls since they compensate for the lack
of preventive controls
B. Reduce the audit scope because compensating controls lower the overall risk to an
acceptable level
C. Include the lack of segregation of duties as a high-risk area regardless of compensating
controls ✓ CORRECT
D. Defer testing of the loan origination system until the bank implements preventive controls
Correct Answer: C
Rationale: Inherent risk must be assessed independently of control effectiveness; the
absence of segregation of duties in a financial workflow represents high inherent risk that
cannot be fully mitigated by detective controls alone. Compensating controls reduce residual
risk but do not eliminate the underlying inherent risk, which is what risk-based audit planning
prioritizes. On the CISA exam, always distinguish between inherent risk (before controls) and
residual risk (after controls) when scoping an audit.
,Question 2 of 50
A healthcare organization's IS auditor is reviewing the workpapers from a previous audit of
the electronic health records (EHR) system. The prior audit relied heavily on inquiry and
observation as evidence, with minimal use of automated testing tools. The current auditor
needs to validate the accuracy of patient data migration from a legacy system that occurred
six months ago.
A. Interview the IT project manager who oversaw the migration and document their verbal
confirmation
B. Use CAATs to re-perform data validation checks on a sample of migrated patient records
against the source system ✓ CORRECT
C. Review the project charter and meeting minutes to confirm the migration was approved by
senior management
D. Observe the current EHR system in operation to verify that patient data is being entered
correctly
Correct Answer: B
Rationale: Computer-assisted audit techniques (CAATs) provide the most reliable and
efficient evidence for validating data integrity across large datasets, which is essential for
verifying historical data migrations. Inquiry and observation are weaker evidence types
because they are subjective and do not independently verify data accuracy, while project
documentation only confirms authorization, not data quality. When testing data integrity on
the CISA exam, CAATs are the preferred method over manual or subjective evidence
gathering.
Question 3 of 50
A manufacturing firm's audit committee has directed the internal audit function to evaluate
the effectiveness of the organization's IT general controls (ITGCs) before relying on them for
a financial statement audit. The audit team discovers that change management tickets are
frequently approved without documented testing results, and emergency changes bypass the
standard approval workflow.
A. Rely on the change management process as-is since emergency changes are an accepted
industry practice
B. Test a larger sample of changes to compensate for the control deficiencies and still rely
on ITGCs
C. Report the control deficiencies to management and reduce reliance on ITGCs for the
financial audit ✓ CORRECT
D. Perform additional substantive testing on the financial applications to replace the need for
ITGC testing
Correct Answer: C
,Rationale: When ITGCs are found deficient, ISACA standards require the auditor to report the
deficiencies and adjust the audit approach by reducing reliance on those controls and
increasing substantive testing. Simply expanding the sample size does not address the
systemic nature of the control failure, and substantive testing alone cannot fully compensate
for weak ITGCs in a financial audit context. On the CISA exam, remember that control
deficiencies must be reported and the audit strategy adjusted accordingly rather than ignored
or patched with larger samples.
Question 4 of 50
A retail chain's IS auditor is designing a statistical sampling plan to test the accuracy of
point-of-sale (POS) transaction logs across 500 stores. The auditor wants 95% confidence
with a 5% margin of error and needs to determine the appropriate sample size. The
population consists of approximately 50 million transactions annually.
A. Use judgmental sampling to select stores with the highest transaction volumes for testing
B. Calculate the sample size using variable sampling formulas based on the desired
confidence level and population size ✓ CORRECT
C. Test all transactions from a single high-volume store to establish a baseline for the entire
chain
D. Select every 1,000th transaction across all stores using systematic sampling without
calculating sample size
Correct Answer: B
Rationale: Statistical sampling requires formal calculation of sample size based on
confidence level, precision, and population characteristics to ensure the results are
defensible and representative of the entire population. Judgmental sampling introduces bias
by focusing only on high-risk areas, while testing a single store or using arbitrary intervals
without calculation fails to provide statistically valid conclusions. When the CISA exam asks
about sampling design, always look for the answer that applies statistical formulas rather
than convenience or judgment-based approaches.
Question 5 of 50
During an audit of a government agency's procurement system, the IS auditor discovers that
the system administrator has unrestricted access to both the application configuration and
the underlying database. The administrator has also been assigned responsibility for
reviewing system access logs. The audit is being conducted under tight time constraints.
A. Recommend immediately removing the administrator's database access to enforce
segregation of duties
B. Document the finding as a compensating control issue and proceed with the remaining
audit scope
, C. Report the segregation of duties violation as a significant finding and adjust the audit plan
to test for unauthorized changes ✓ CORRECT
D. Accept the risk since government agencies typically have limited IT staffing and cannot
enforce strict separation
Correct Answer: C
Rationale: Segregation of duties is a fundamental internal control principle, and an
administrator with both configuration and database access who also reviews their own logs
creates a significant risk of undetected unauthorized changes. The auditor must report this
as a significant finding and expand testing to detect potential integrity issues, rather than
accepting the risk or treating it as a compensating control. On the CISA exam, segregation of
duties violations in critical systems are always significant findings that require expanded
testing, not acceptance or workarounds.
Question 6 of 50
A financial services firm's external auditor is reviewing the internal audit department's
workpapers for the previous year's IT general controls audit. The external auditor notes that
the internal audit team used continuous auditing techniques to monitor privileged access
changes in real-time throughout the year. The external auditor wants to determine whether
this approach provides sufficient appropriate evidence.
A. Conclude that continuous auditing provides stronger evidence than periodic testing
because it covers the entire period
B. Evaluate whether the continuous auditing scripts were independently validated and whether
exceptions were properly investigated ✓ CORRECT
C. Accept the continuous auditing results without review since the internal audit function is
independent
D. Request that the internal audit team re-perform the continuous auditing procedures
manually for verification
Correct Answer: B
Rationale: The reliability of continuous auditing depends on the integrity of the underlying
scripts and the rigor of exception follow-up, not merely the fact that monitoring occurs
continuously. The external auditor must assess whether the automated tools were
independently validated and whether identified anomalies were properly investigated, as
continuous monitoring with flawed scripts provides false assurance. When evaluating CAATs
or continuous auditing on the CISA exam, always verify the validation of tools and the
investigation of exceptions rather than assuming continuous equals reliable.
Question 7 of 50
An IS auditor at a pharmaceutical company is planning an audit of the batch processing
controls for the drug formulation tracking system. The auditor needs to determine whether
