The architecture of a database can be viewed as the ________.a.One levelb.Four levelc.Three-leveld.Two-level
Question
The architecture of a database can be viewed as the ________.
a. One level
b. Four level
c. Three-level
d. Two-level
Solution
Answer
The architecture of a database can be viewed as the c. Three-level.
The three-level architecture is a widely accepted standard in database design. It includes:
- Internal Level: This is the physical storage level, where the data is stored as bytes on the disk.
- Conceptual Level: This level represents the structure of the whole database for a community of users. It encompasses all the data in the database and the relationships among them.
- External Level: This level is concerned with how users view the data. It provides different views for different users, allowing for data abstraction and security.
This architecture promotes data independence and supports various user interactions with the database while maintaining its robustness and integrity.
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