Data Management and Points Received Essay Example

1. Question: A characteristic or quality describing an entity is called a(n): Your Answer:
Field

Tuple Key field Attribute ( pp. 210 ) CORRECT

Points Received: 2 of 2 Comments:
2. Question: Duplicate data in multiple data files is: Your Answer:
Data redundancy ( p. 211 ) CORRECT Data multiplication Data independence Data backups

Points Received: 2 of 2 Comments:
3. Question: The logical view: Your Answer:
Shows how data are organized and structured on the storage media. Presents an entry screen to the user. Allows the creation of supplementary reports. Presents data as they would be perceived by end users. ( p. 212 ) CORRECT

Points Received: 2 of 2 Comments:
4. Question: The data dictionary serves as an important data management tool by: Your Answer:
Assigning attributes to the data Creating an inventory of data contained in the database ( pp. 217 ) CORRECT Presenting data as end users or business specialists would perceive them Maintaining data in updated form

Points Received: 2 of 2 Comments:
5. Question: An automated or manual file that stores information about data elements and data characteristics such as usage, physical representation, ownership, authorization, and security is the: Your Answer:
Data dictionary ( pp. 217 ) CORRECT Data definition diagram Entity-relationship diagram Relationship dictionary

Points Received: 2 of 2 Comments:
6. Question: DBMS's typically include report-generating tools in order to: Your Answer:
Retrieve and display data Display data in an easier-to-read format ( p. 219 )