a. Which of the following are data visualization techniques?

		Geospatial analysis and data mapping
		Heat maps
		All of these are types of data visualization.
		Link analys

b. Which kinds of techniques are used in both forensic settings and in external audit settings?

		Interviews of knowledgeable people
		Ratio analysis
		Vouching or tracing selected transactions
		All of the above.

c. Which of the following controls are primarily preventive in nature? (Check ALL that apply.)

		A manufacturing company conducts month-end data analytics to identify stores with low sales. Internal audit focuses on these stores during its periodic audits.
		A company conducts a physical inventory and conducts a book-to-physical reconciliation every six months.
		A company conducts exit interviews, in which it asks departing employees about any ethical violations and their reasons for leaving.
		A company's business process requires signature of a manager outside the accounting function before allowing a cash disbursement.
		A company's information technology department is off-site and physically secured from intrusion.
		A small not-for-profit company outsources is cash disbursement function. Any disbursement requests are faxed to the outsourced provider, they are loaded to a password protected on-line portal. The CEO reviews and approves disbursements on the on-line portal. The outsourced provider cuts the checks and mails them.
		A credit card processing company uses a technology that risk-scores transactions and prevents them from occurring if they are deemed too high risk.
		A telecommunications company uses valuable copper wiring for repairs of its transmission lines. The inventory of wiring is kept in locked storage facility when not needed by the repair team members.