Awalk-through of job functionsprovides direct evidence thatseparation of duties (SoD)is implemented effectively. It involves observing employees as they perform tasks to confirm that no single person has excessive privileges. Walk-through of Job Functions (Correct Answer - D) Confirms that duties are appropriately divided in real-world operations. Helps verify whether security policies and controls are enforced. Example:An auditor observes that the same person cannot create and approve financial transactions. Review of Personnel Files (Incorrect - A) Personnel files contain job details but do not confirm how duties are performed. Analysis of Documented Job Descriptions (Incorrect - B) Job descriptions may be outdated or inaccurate. Review of Organizational Chart (Incorrect - C) Shows reporting relationships but does not confirm SoD implementation. References: ISACA CISA Review Manual COBIT 2019: Risk Management and Governance ISO 27001: Segregation of Duties Control