Which of the following fundamental principles of The IIA's Code of Ethics is best described...

The fundamental principle of The IIA's Code of Ethics best described as performing work honestly, diligently, and responsibly is Integrity. This principle is foundational to the ethical conduct expected of internal auditors, underpinning their professional behavior and ensuring trust in their work and judgments. References: The IIA's Code of Ethics, specifically the section on Integrity, which outlines the expectation for internal auditors to work with honesty and diligence.QUESTION NO: 503

During engagement planning, an internal auditor determines that the cost of a certain test outweighs the benefit that can be expected from the results. He determines that this test can be removed from the audit work program. Which of the following did the internal auditor best demonstrate?

A. Due professional care

B. Individual objectivity

C. Proficiency

D. Internal assessment

Answer: A

The internal auditor demonstrated due professional care by deciding to remove a test from the audit work program when the cost outweighed the benefit. Due professional care involves considering the efficiency and cost-effectiveness of audit procedures in relation to the potential benefits. This decision shows prudent judgment and a focus on optimizing the value of audit activities. References: Institute of Internal Auditors (IIA) - International Professional Practices Framework (IPPF)