In assessing the design of a training program for an organization's ethics program, the most relevant questions would be those that address the content of the training and the feedback mechanism used to foster ethical decision-making. Questions 1 and 4 directly relate to these aspects, examining if the training includes ethical decision-making scenarios and if there is feedback on the thought processes involved, which are critical for effective ethics training.
IIA guidance on auditing ethics programs, focusing on the effectiveness and design of training components.

Nonconformance with the Standards that requires disclosure to the board includes the failure to conduct external assessments within the timeframe stipulated by the IIA standards. Specifically, Standard 1312 requires that an external quality assessment must be conducted at least once every five years. Not completing this assessment within the last seven years constitutes a nonconformance that must be reported.References:
Institute of Internal Auditors (IIA) Standards, specifically Standard 1312 on External Assessments.

The indication that an internal auditor was assigned to an assurance engagement is most strongly given by the requirement that the auditor must not assume management responsibilities while performing the engagement.
This aligns with the principles of objectivity and independence, which are critical in assurance engagements to provide unbiased and reliable conclusions. Taking on management responsibilities could compromise the auditor's objectivity by involving them in the operations they are auditing.References: IIA's International Standards for the Professional Practice of Internal Auditing.

A whistleblower hotline is part of a fraud detection program. Whistleblower hotlines are critical as they provide a confidential means for employees and others to report suspicious activities or concerns about fraud, thereby aiding in the early detection and investigation of potential fraudulent activities within an organization.
References: IIA guidance and fraud risk management frameworks that identify whistleblower programs as an essential element of an effective fraud detection system.