Final answer:
The auditor's tests to understand the client's internal controls might include analytical procedures, observation of the client's operations, and inquiry of the client's personnel.
Step-by-step explanation:
The auditor's tests to understand the client's internal controls might include all of the following types of procedures:
- Analytical procedures: The auditor analyzes financial and non-financial data to identify any unusual patterns or trends that could indicate control weaknesses.
- Observation of the client's operations: The auditor physically observes the client's operations, such as inventory handling or cash handling, to assess the effectiveness of the internal controls.
- Inquiry of the client's personnel: The auditor interviews the client's personnel to gain an understanding of the internal control system and to identify any control deficiencies or deviations from established procedures.