Câu 38: IIA-CIA-PART1: Certified Internal Auditor - Part 1 The Internal Audit Activitys Role in Governance Risk and Control

Which of the following control methods is effective in reducing the risk of purchasing-scheme fraud?1. Periodically reviewing the vendor list for unusual vendors and addresses.2. Segregating duties for amount purchasing, receiving, shipping, and accounting.3. Validating sequential integrity of purchase orders.4. Verifying the validity of invoices with post office box addresses.

1. A. 1 and 2 only
2. B. 3 and 4 only — đáp án hiện tại
3. C. 1, 2, and 4 only
4. D. 1, 2, 3, and 4