Who is more concerned about the conceptual level at DBMS?

Correct option is C

The Database Administrator (DBA) is primarily concerned with the conceptual level of a DBMS. The conceptual level defines the structure of the entire database and hides the internal details, ensuring a unified representation for all users.
Important Key Points:
1. Conceptual Level: Focuses on the overall structure of the database, including entities, attributes, and relationships.
2. Role of DBA: The DBA designs, manages, and maintains the conceptual schema to meet the organization's requirements.
3. Separation of Concerns: The conceptual level abstracts technical complexities from end-users and clients.
Knowledge Booster:
· Other Levels in DBMS: Internal (physical storage) and external (user views).
· End Users: Concerned with the external level, which represents individual views of data.
· System Programmer: Focuses on the internal level for performance optimization.