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Database - Data Warehousing

Exercise : Data Warehousing - General Questions
11.
The load and index 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
A process to upgrade the quality of data before it is moved into a data warehouse
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
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
Capturing a subset of the data contained in various decision support systems
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
A star schema has what type of relationship between a dimension and fact table?
Many-to-many
One-to-one
One-to-many
All of the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
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
Data that are never deleted once they have been added
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
A multifield transformation does which of the following?
Converts data from one field into multiple fields
Converts data from multiple fields into one field
Converts data from multiple fields into multiple fields
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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