Question

Which of the following is synonym for Meta-data?

• A. Data Dictionary
• B. Database Instance
• C. Database Schema
• D. Data Constraint

Hint:

Meta-data = data about data. In DBMS, it is stored in the Data Dictionary.

Answer 1

The Correct Option is A

Step 1: Understanding Meta-data.
Meta-data means "data about data". It provides information about the structure, storage, and properties of data, rather than the actual data itself.
Step 2: Analyze options.
- Data Dictionary: Stores definitions, structure, constraints, and relationships of data in the database → synonym for meta-data.
- Database Instance: Refers to the running copy of the database at a specific moment, not meta-data.
- Database Schema: Logical design/blueprint of the database, but not a synonym of meta-data.
- Data Constraint: Rules applied on data, not meta-data.

Step 3: Conclusion.
Thus, the synonym of meta-data is Data Dictionary.
Final Answer: \[ \boxed{\text{Data Dictionary}} \]