While reviewing first quarter sales transactions, an internal auditor discovered that 10 invoices for a new customer had not been posted into the accounts receivable subsidiary ledger. Those 10 invoices were listed in an error report automatically generated by the sales processing system. The system had rejected the invoices because the customer's account number was not found in the customer master file. In this scenario, which of the following controls was lacking?

The chief audit executive (CAE) of a small internal audit activity (IAA) performs all high-risk engagements on the annual audit plan to make use of his knowledge and experience and to maximize the efficient use of audit resources. Which of the following statements is most relevant regarding this practice?

According to IIA guidance, which of the following statements is true regarding the reporting of results from an external quality assessment of the internal audit activity?

An internal auditor in a small broadcasting organization was assigned to review the revenue collection process.
The auditor discovered that some checks from three customers were never recorded in the organization's financial records. Which of the following documents would be the least useful for the auditor to verify the finding?

According to IIA guidance, which of the following is ultimately responsible for seeing that the internal control system of an organization's social responsibility program is effective?