
Data Warehousing Quiz
Authored by Dean Academics
Computers
12th Grade
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a data warehouse?
A place to store physical goods
A subject-oriented, integrated, time-variant and non-volatile collection of data
A type of relational database
A cloud storage solution
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of database is typically used for data warehouses?
OLTP (Online Transaction Processing)
OLAP (Online Analytical Processing)
NoSQL
Graph database
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does ETL stand for in the context of data warehousing?
Extract, Transfer, Load
Evaluate, Test, Launch
Extract, Transform, Load
Enhance, Track, Leverage
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a characteristic of data in source systems?
Read/write access
Aligned by application
Uniform data formats across different systems
Limited data history
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of a data warehouse?
Transaction processing
Data storage
Analysis and decision support
Real-time data updates
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which schema type has one fact table surrounded by multiple dimension tables?
Snowflake Schema
Star Schema
Fact Constellation Schema
Relational Schema
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is metadata in the context of a data warehouse?
The main data stored in the warehouse
Data about the data in the warehouse
The source of the data
The output of data analysis
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