Datawarhousing-ETL Concepts
Data Warehousing ETL Concepts Quiz
Test your knowledge on data warehousing and ETL concepts with our engaging quiz! This quiz covers essential topics in the field, providing a comprehensive assessment of your understanding.
Key Features:
- 10 multiple choice & checkbox questions
- Instant feedback on your answers
- Perfect for data professionals and enthusiasts alike
A data warehouse is which of the following?
Can be updated by end users.
Contains numerous naming conventions and formats.
Organized around important subject areas.
An operational system is which of the following?
A system that is used to run the business in real time and is based on historical data.
A system that is used to run the business in real time and is based on current data.
A system that is used to support decision making and is based on current data.
The generic two-level data warehouse architecture includes which of the following?
At least one data mart
Data that can extracted from numerous internal and external sources
Near real-time updates
The active data warehouse architecture includes which of the following?
At least one data mart
Data that can extracted from numerous internal and external sources
All of the above.
Reconciled data is which of the following?
Data stored in the various operational systems throughout the organization.
Current data intended to be the single source for all decision support systems.
Data stored in one operational system in the organization.
Transient data is which of the following?
Data in which changes to existing records cause the previous version of the records to be eliminated
Data in which changes to existing records do not cause the previous version of the records to be eliminated
Data that are never altered or deleted once they have been added
The extract process is which of the following?
Capturing all of the data contained in various operational systems
Capturing a subset of the data contained in various operational systems
Capturing all of the data contained in various decision support systems
Data scrubbing is which of the following?
A process to reject data from the data warehouse and to create the necessary indexes
A process to load the data in the data warehouse and to create the necessary indexes
A process to upgrade the quality of data after it is moved into a data warehouse
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