This chief audit executive (CAE) engaged an internal auditor to consult on an organization's complex information technology system. Shortly after beginning the engagement, the auditor unexpectedly resigned.
Unfortunately, this auditor was the only available auditor with the necessary expertise. The CAE will not be able to hire someone with similar expertise in time to meet a regulatory deadline.
Which of the following would be the best course of action for the CAE to take?

While performing an accounts payable engagement, a senior auditor wants to conduct several tests of controls for travel expenses. Which of the following actions are most appropriate for the senior auditor to undertake?
1. Ensure all tests use a random sampling technique.
2. Consider a judgmental approach for the sample size.
3. Assess testing errors through root cause analysis.
4. Ensure that the entire data set is tested.

A credit card company detects potential errors in credit card numbers by checking whether all entered numbers contain the correct amount of digits. This is an example of which of the following IT controls?

Which of the following statements describes impairment to the internal auditor's objectivity?

An internal audit charter, approved by the board, restricts the internal audit activity to providing assurance only on the reliability of financial information and the effectiveness of internal accounting controls. Which of the following statements is true regarding the extent to which the external auditor may rely on the internal audit activity's work?