Which of the following is an advantage to using the questionnaire approach when conducting risk and control self assessments?

An auditor used a questionnaire during an interview to gather information about the nature of credit sales processing. The questionnaire did not cover some pertinent information offered by the person being interviewed, and the auditor did not document the potential problems for further investigation.
The primary deficiency with the above process is that:

According to IIA guidance, which of the following is least likely to be a key financial control in an organization's accounts payable process?

Which of the following is an inherent risk of issuing an opinion on the overall effectiveness of internal control?

When setting the scope for the identification and assessment of key risks and controls in a process, which of the following would be the least appropriate approach?