DWDM-2
Quiz
•
Computers
•
University
•
Practice Problem
•
Hard
N.ILAYARAJA IT
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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.
Contains only current data.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
________ is a collection of data marts representing historical data from different operations in the company.
data warehouse
data mining
OLAP
None of these
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Data can be updated in _____environment.
data mart
data mining
operational
informational
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
______________ is data about data.
Metadata
Microdata
Minidata
Multidata
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The star schema is composed of __________ fact table.
1
2
3
Many
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
___________ is a good alternative to the star schema.
Star schema.
Snowflake schema.
Fact constellation.
Star-snowflake schema.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fact tables are ___________.
completely demoralized
partially demoralized.
completely normalized.
partially normalized.
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