In an enterprise-class system, the DBMS serves as an interface between which two components?
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ADatabase application and the database
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BData and the database
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CThe user and the database application
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DDatabase application and SQL
Answer
Correct Answer: Database application and the database
Explanation
Introduction / Context:The Database Management System (DBMS) is middleware that manages storage, retrieval, transactions, and concurrency.
Given Data / Assumptions:
- We consider the high-level architecture of software that uses a database.
Concept / Approach:Applications do not directly manipulate on-disk structures; they send commands (SQL/driver calls) to the DBMS. The DBMS then executes those commands against the database files and returns results.
Step-by-Step Reasoning:
Application → issues queries/commands via drivers/ORMs.DBMS → parses, optimizes, executes, manages locks/transactions.Database → physical/logical data storage managed by the DBMS.Verification / Alternative check:Any standard client-server DB architecture diagram shows the DBMS between clients and data files.
Why Other Options Are Wrong:
- Data and the database → both are storage-side; the interface is not here.
- User and the application → typically handled by UI; unrelated to DBMS.
- Application and SQL → SQL is a language, not a component.
Common Pitfalls:Using “database” and “DBMS” interchangeably; they are distinct.
Final Answer:Database application and the database