Essay

Chapter 13

1) Two lists reflecting the same data about the same person is an example of

data inconsistency.

data duplication errors.

data disparity.

data redundancy.

2) Which of the following is an advantage of using a database versus lists?

Databases are easier to build and maintain than lists.

Data integrity can be maintained.

Information can be easily shared.

Data entry errors can never occur with databases.

3) A group of related records in a relational database is stored in a(n)

master record.

primary key vault.

field.

table.

4) In databases, tables are linked by using

primary fields.

associated fields.

relationships.

database logic.

5) A field that has a unique value for each record in a database is called the

key field.

primary key.

logical key.

master field.

6) A primary key of one table that is also found in a related table is a

secondary key.

foreign key.

linked key.

subordinate key.

7) Which of the following is NOT one of the four main operations of a database management system?

Indexing data

Viewing data

Inputting data

Stucturing data

8) Ensuring that a field must contain data is an example of a(n)

existence check.

completeness check.

consistency check.

veracity check.

9) A system that is designed to develop a solution to a specific problem is known as a(n)

management information system.

decision support system.

data warehouse.

office support system.

10) An electronic system used to provide monthly sales information to the vice president of sales is an example of a

transaction processing system.

knowledge-based system.

decision support system.

management information system.

11) A query is used to display requested data from a database.

True False

12) Validation...