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Database - Data Warehousing

Why Database Data Warehousing?

In this section you can learn and practice Database Questions based on "Data Warehousing" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.

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Where can I get Database Data Warehousing Interview Questions and Answers (objective type, multiple choice)?

Here you can find objective type Database Data Warehousing questions and answers for interview and entrance examination. Multiple choice and true or false type questions are also provided.

How to solve Database Data Warehousing problems?

You can easily solve all kind of Database questions based on Data Warehousing by practicing the objective type exercises given below, also get shortcut methods to solve Database Data Warehousing problems.

Home » Engineering » Database » Data Warehousing » General Questions

Exercise :: Data Warehousing - General Questions

1. 

Data scrubbing is which of the following?
A. A process to reject data from the data warehouse and to create the necessary indexes
B. A process to load the data in the data warehouse and to create the necessary indexes
C. A process to upgrade the quality of data after it is moved into a data warehouse
D. A process to upgrade the quality of data before it is moved into a data warehouse

Answer: Option D

Explanation:

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2. 

The @active data warehouse architecture includes which of the following?
A. At least one data mart
B. Data that can extracted from numerous internal and external sources
C. Near real-time updates
D. All of the above.

Answer: Option D

Explanation:

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3. 

A goal of data mining includes which of the following?
A. To explain some observed event or condition
B. To confirm that data exists
C. To analyze data for expected relationships
D. To create a new data warehouse

Answer: Option A

Explanation:

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4. 

An operational system is which of the following?
A. A system that is used to run the business in real time and is based on historical data.
B. A system that is used to run the business in real time and is based on current data.
C. A system that is used to support decision making and is based on current data.
D. A system that is used to support decision making and is based on historical data.

Answer: Option B

Explanation:

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5. 

A data warehouse is which of the following?
A. Can be updated by end users.
B. Contains numerous naming conventions and formats.
C. Organized around important subject areas.
D. Contains only current data.

Answer: Option C

Explanation:

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