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7 Modules
Which of the following best describes a Data Warehouse?
A system designed for transaction processing.
A centralized repository for integrated data from multiple sources.
A database optimized for real-time analytics.
A platform for managing unstructured data.
What is the primary purpose of ETL in the context of a Data Warehouse?
To extract, transform, and load data into the warehouse.
To enable real-time data processing.
To provide data visualization capabilities.
To ensure data security and compliance.
Which of the following schemas is commonly used in Data Warehousing?
Star Schema
Snowflake Schema
Galaxy Schema
Network Schema
In a Data Warehouse, what is the purpose of a fact table?
To store descriptive attributes related to dimensions.
To store quantitative data for analysis.
To provide metadata about the data warehouse.
To manage user access and permissions.
Which of the following are characteristics of a Data Warehouse?
Subject-oriented
Time-variant
Volatile
Integrated
7 Modules