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CISA Practice Question: Information Systems Acquisition, Development, and Implementation

An organization is implementing an enterprise resource planning (ERP) system. The project team plans to migrate legacy data without performing a full reconciliation between source and target systems. As an IS auditor, which of the following should be your PRIMARY concern?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Incomplete or inaccurate data may be loaded into the new system

Data migration without reconciliation can cause undetected data corruption or loss, impacting financial reporting and operations.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • The legacy system may be decommissioned prematurely

    Why it's wrong here

    Premature decommissioning is a risk, but data accuracy is a more direct concern.

  • User acceptance testing may be delayed

    Why it's wrong here

    UAT delay is a project risk but not the primary audit concern.

  • The data migration may exceed the planned timeline

    Why it's wrong here

    Timeline is secondary to data integrity risk.

  • Incomplete or inaccurate data may be loaded into the new system

    Why this is correct

    Without reconciliation, errors go unnoticed, leading to unreliable data.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This CISA practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CISA exam.