The primary purpose of documenting audit objectives when preparing for an engagement is to identify areas with relatively high probability of material problems. Audit objectives are statements that describe what the audit intends to accomplish or verify during the engagement. Audit objectives help the IS auditor to focus on the key areas of risk or concern, to design appropriate audit procedures and tests, and to evaluate audit evidence and results. By documenting audit objectives, the IS auditor can identify areas with relatively high probability of material problems that may affect the achievement of audit goals or business objectives.
Addressing the overall risk associated with the activity under review, ensuring maximum use of audit resources during the engagement and prioritizing and scheduling auditee meetings are also purposes of documenting audit objectives, but they are not as primary as identifying areas with high probability of material problems. References:
* CISA Review Manual, 27th Edition, page 1111
* CISA Review Questions, Answers & Explanations Database - 12 Month Subscription

Low-priority jobs typically involve non-critical processes or tasks that do not immediately impact business operations. The best approach to handling such jobs is to schedule them subject to resource availability. This ensures that high-priority tasks can access resources when needed without being affected by the execution of low-priority tasks.
* Avoiding Low-Priority Jobs (Option A)is not feasible because even low-priority tasks may be necessary for maintenance or support activities.
* Including Major Functions in Low-Priority Jobs (Option B)contradicts the classification of "low- priority" because major functions are usually critical.
* Allocating Optimal Resources to Low-Priority Jobs (Option C)is inefficient as resources should primarily be allocated to high-priority tasks.
Scheduling based on resource availability optimizes the use of resources, avoids unnecessary delays in high- priority activities, and ensures that low-priority tasks are executed without disrupting overall operations. This aligns with best practices in IT resource management and scheduling.
Reference:ISACA CISA Review Manual, Job Practice Area 3: Information Systems Operations and Business Resilience.

If SoD cannot be fully implemented, an independent review of changes after deployment provides assurance that inappropriate or unauthorized code has not been introduced. Other options either weaken controls or fail to provide adequate oversight.
References (ISACA): COBIT BAI06 (Managed IT Changes).

The mitigating factor that would most significantly minimize the impact of not renewing IT risk acceptances in a timely manner is having documented compensating controls over the business processes. Compensating controls are alternative controls that reduce or eliminate the risk when the primary control is not feasible or cost-effective. The other factors, such as previous approval by senior management, unchanged business environment, and small percentage of issues, do not mitigate the risk as effectively as compensating controls. References: ISACA CISA Review Manual 27th Edition Chapter 1