1. A key is a column or group of columns that identifies a unique row in a table

ID: 3667706 • Letter: 1

Question

1. A key is a column or group of columns that identifies a unique row in a table. T/F

2. Each table in a database must have two or more primary keys. T/F

3. A DBMS and database mean the same thing and are synonymous terms that can be used interchangeably.T/F

4. One of the developmental tasks of a database administrator is to create a system to record and manage the resolution of problems.T/F

5. A data model describes data and relationships that will be stored in the database.T/F

6. In data models, physical objects are represented as entities, whereas logical constructs and transactions are represented as attributes.T/F

7. A foreign key is essential in relational databases to represent the relationship between two tables.T/F

8..Which of the following is the smallest data element in a database?

Field

1. T

2. F

3. F

4. T

5. T

6. F

7. T

8. Field

9. Primary Key

10. query

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