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: Define Meta-data.
Meta-data is defined as "data about data". It offers details concerning the structure, storage, and characteristics of data, distinct from the actual data content.
Step 2: Evaluate Choices.
- Data Dictionary: Contains definitions, structure, constraints, and interdependencies of database data, functioning as a synonym for meta-data.
- Database Instance: Represents a live copy of the database at a given point in time; it is not meta-data.
- Database Schema: Outlines the logical design or blueprint of the database; it is not a synonym for meta-data.
- Data Constraint: Enforces rules on data; it is not meta-data.

Step 3: Determine Synonym.
Consequently, the synonym for meta-data is Data Dictionary.
Final Answer: \[\boxed{\text{Data Dictionary}}\]