In Your Database Course, Your Instructor Has Given You a Small

question 21

Multiple Choice

In your database course, your instructor has given you a small database that has a lot of invalid data, issuing the challenge to you that you work to apply validation rules to the data and determine what checks need to be applied in order to restore integrity to the data.
A quick scan of the data in the First Name field in the database yields the numbers 3 and 7 and an asterisk. What kind of check should you run on this field?

• A) completeness check
• B) alphabetic check
• C) consistency check
• D) check digit

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Definitions:

Present

The current point in time or the moment that is occurring now.

Present Value

The current value of a future sum of money or stream of cash flows, given a specified rate of return.

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Businesses that aim to achieve the highest possible profit from their operations.