CISA Domain 3B-3 Practice Test 001

This practice test covers Domain 3 (Information Systems Acquisition, Development & Implementation) Subdomain B-3 (System Migration, Infrastructure Deployment, and Data Conversion) from the CISA exam content outline.

These questions are inspired by the ISACA CISA exam and are designed to help you test your knowledge of information systems auditing, governance, risk management, IT operations, business resilience, and information asset protection.

These are not official exam questions or brain dumps. They are original scenario-based questions created to reflect the audit judgment, control evaluation, and risk-based decision-making skills tested in the CISA exam.

Note: CISA and Certified Information Systems Auditor are registered trademarks of ISACA. This content is not affiliated with or endorsed by ISACA.

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CISA 3B-3 System Migration, Infrastructure Deployment, and Data Conversion Practice Test 001

10 questions • Single best answer

Question 1

A manufacturing company is migrating financial and inventory data from a legacy ERP to a new cloud-based platform. The project team has completed the initial data load into the production environment and is preparing for cutover. Which procedure provides the BEST assurance that the migrated data is complete and accurate?

A. Reconcile record counts and control totals between the source and target systems. B. Confirm that end users have been trained on the new ERP interface. C. Review the approved data migration project plan to confirm all milestones were completed. D. Verify that the legacy system has been decommissioned after cutover.

Question 2

During a data center migration, an IS auditor reviews the cutover plan for a government agency's tax processing system. The plan schedules the migration over a holiday weekend but does not describe how operations would revert if the new environment fails. Which finding is MOST significant?

A. The migration is scheduled during a low-activity holiday weekend. B. The cutover plan was approved by the project manager rather than the CIO. C. No documented rollback or fallback procedure exists to restore the prior environment. D. User acceptance testing was completed two weeks before the migration date.

Question 3

A healthcare provider is replacing its patient billing system and plans to run the legacy and new systems in parallel before full cutover. The project sponsor wants to shorten the parallel run to reduce cost and accelerate go-live. What is the IS auditor's BEST recommendation?

A. Eliminate the parallel run entirely and rely solely on a post-implementation review after go-live. B. Replace the parallel run with a one-time data reconciliation performed after cutover. C. Proceed with the shortened parallel run to meet the sponsor's cost target. D. Retain a parallel run long enough to confirm consistent results across representative billing cycles.

Question 4

An insurance company is preparing to convert policyholder records from several legacy databases into a single new system ahead of a scheduled cutover. Pre-conversion testing reveals duplicate, inconsistent, and incomplete customer records across the source systems. Before proceeding with the conversion, what should the project team do FIRST?

A. Cleanse and validate the source data before performing the conversion. B. Load all records and correct the errors directly in the new production system. C. Exclude the incomplete records from the migration scope entirely. D. Proceed with the migration and schedule data cleanup after go-live.

Question 5

After migrating customer and order data to a new order-management system, an IS auditor must confirm that relationships between related records were preserved during the conversion process. The team has reported that all records loaded successfully. Which of the following provides the BEST evidence that referential data integrity was maintained?

A. A signed sign-off from the migration vendor confirming the load completed successfully. B. A count confirming that the same number of rows was loaded into each destination table. C. Reconciliation showing orders correctly linked to their parent customer records. D. Confirmation that the migration finished within the planned processing window.

Question 6

A logistics firm is preparing to deploy new warehouse-management infrastructure into production, and the steering committee must make a go/no-go decision at the readiness review. Several open items remain in the project log across different severity levels. Which of the following conditions would MOST justify delaying the deployment?

A. A few non-critical cosmetic defects remain open in the defect log. B. Some end users have not yet completed the optional refresher training scheduled after go-live. C. The vendor's implementation consultant is unavailable on the planned cutover date. D. Critical data conversion errors remain unresolved and reconciliation has failed.

Question 7

A telecommunications company has deployed new server infrastructure to a secondary site as part of a migration and plans to redirect live customer traffic to it. Before the switchover, the IS auditor evaluates deployment readiness. Which control provides the BEST assurance the new environment will perform reliably?

A. A review of the hardware purchase orders and vendor warranty terms. B. Successful stress and performance testing of the new environment under production-like load. C. Confirmation that all new servers have been physically installed and cabled at the secondary site. D. A checklist signed by the infrastructure team confirming installation is complete.

Question 8

During a payroll system migration for a large retail chain, the IS auditor reviews how the converted data was validated before go-live. The same developer who wrote the data conversion routines also performed the post-conversion reconciliation and approved the results without any independent review. Which finding is MOST significant?

A. A lack of independent verification allows conversion errors to go undetected. B. The reconciliation was performed using automated scripts rather than manual review. C. The reconciliation was completed after business hours to avoid disruption. D. The developer used a masked copy of production data for the conversion test.

Question 9

A university is migrating student records to a new information system as part of a broader infrastructure refresh. To free storage capacity, the project team plans to overwrite the legacy database immediately after the conversion script completes at cutover. What is the IS auditor's BEST recommendation regarding the legacy data?

A. Archive the legacy database only if regulators specifically request a copy later. B. Overwrite the legacy data as planned once the migration script completes. C. Retain the legacy data in read-only form until migration accuracy is fully confirmed. D. Delete the legacy data but keep only the migration execution logs for reference.

Question 10

Following a core banking data migration into the production environment, month-end reports produced by the new system show account balances that differ from the corresponding totals in the legacy system. Management is concerned about the accuracy of the converted data and asks for the auditor's view. What should the IS auditor do FIRST?

A. Recommend reverting to the legacy system immediately to protect customers. B. Determine the source and extent of the reconciliation discrepancies. C. Conclude that the migration failed and escalate the matter directly to the board. D. Request that the new balances be manually adjusted to match the legacy totals.

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