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

question 81

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

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Definitions:

Purely Competitive Seller

A seller in a market structure characterized by many sellers offering identical products, where no single seller can influence the market price.

Total Fixed Cost

The sum of all costs that remain constant regardless of the level of production or output in the short term.

Variable Cost

Costs that vary in total with changes in the level of production or other business activities.

Market Price

The existing cost for purchasing or selling an asset or service on the open market.