Q 17

why Incorrect Answer: Use the customer IDs in the purchases file to search the customers file to generate a list of e-mail addresses

Correct Answer: Use the products file to generate a list of product IDs that use AA batteries, then use the list of product IDs to search the purchases file to generate a list of customer IDs, then use the list of customer IDs to search the customers file to generate a list of e-mail addresses

Explanation: I misunderstood the question. It makes perfect sense that you need to follow through these steps to get the correct email list.

Q 18

why Incorrect Answer: I and II only

Correct Answer: I, II, and III

Explanation: Any organization of these steps will work as long as all the steps are the same.