Question

7. The data model that addresses the data requirements is the _____.

1. Logical data model
2. Conceptual data model
3. Relational database
4. Physical data model

8. The hierarchical data base relationships are called _____.

1. Structured
2. Parent and child
3. Table
4. Owners and members

9. Java is used in what type of database?

1. Relational
2. Object-oriented
3. Multidimensional
4. Hierarchical

10. Data repositories are _____.

1. A proprietary database
2. Used solely for clinical data
3. A database used solely for video and audio
4. An open-structure database

Answer 1

7. Answer; Logical data model

Reason ; Among the listed types of data model, the above mentioned model is the appropriate one that includes all the logical info that are involved in any kind of business management with all its respective data required to carry out the process. Therefore the above mentioned option is the most relevant one.

8. Answer; Parent and child

Reason ; It's a kind of database model which has a data formation in a structure of tree with branch from a root The hierarchical database relationship are referred by the above mentioned term in which the child can possess only one parent , but the parent may possess so many child as relationship data. Therefore the above mentioned option is the appropriate one.

9. Answer; Object oriented

Reason ; This kind of data model stores their info on the basics of object, their unit of consideration is based on object and related classes. Therefore the Java platform works on the above mentioned type of data model and the other option are not relevant to the Java programming.

10. Answer; An open structure database.