Data Warehouse Interview Questions and Answers
Here you can find Data Warehouse Interview Questions and Answers.
Why Data Warehouse Interview Questions and Answers Required?
In this Data Warehouse Interview Questions and Answers section you can learn and practice Data Warehouse Interview Questions and Answers to improve your skills in order
to face technical inerview by IT companies. By Practicing these interview questions, you can easily crack any Data Warehouse interview.
Where can I get Data Warehouse Interview Questions and Answers?
AllIndiaExams provides you lots Data Warehouse Interview Questions and Answers with proper explanation. Fully solved examples with detailed answer description. All
students, freshers can download Data Warehouse Interview Questions and Answers as PDF files and eBooks.
How to solve these Data Warehouse Interview Questions and Answers?
You no need to worry, we have given lots of Data Warehouse Interview Questions and Answers and also we have provided lots of FAQ's to quickly answer the questions in
the Data Warehouse technical interview.
Data Warehouse Interview Questions and Answers
What is Datawarehousing?
A Datawarehouse is the repository of a data and it is used for Management decision support system.
Datawarehouse consists of wide variety of data that has high level of business conditions at a single point in time.
In single sentence, it is repository of integrated information which can be available for queries and analysis.
Data Warehouse Interview Questions and Answers
What is Business Intelligence?
Business Intelligence is also known as DSS – Decision support system which refers to the technologies, application and practices for the collection, integration and analysis
of the business related information or data.
Even, it helps to see the data on the information itself.
Data Warehouse Interview Questions and Answers
What is Dimension Table?
Dimension table is a table which contain attributes of measurements stored in fact tables.
This table consists of hierarchies, categories and logic that can be used to traverse in nodes.
Data Warehouse Interview Questions and Answers
What is Fact Table?
Fact table contains the measurement of business processes, and it contains foreign keys for the dimension tables.
Example – If the business process is manufacturing of bricks
Average number of bricks produced by one person/machine – measure of the business process
Data Warehouse Interview Questions and Answers
What are the stages of Datawarehousing?
There are four stages of Datawarehousing:
Offline Operational Database
Offline Data Warehouse
Real Time Datawarehouse
Integrated Datawarehouse
Data Warehouse Interview Questions and Answers
What is Data Mining?
Data Mining is set to be a process of analyzing the data in different dimensions or perspectives and summarizing into a useful information.
Can be queried and retrieved the data from database in their own format.
Data Warehouse Interview Questions and Answers
What is OLTP?
OLTP is abbreviated as On-Line Transaction Processing, and it is an application that modifies the data whenever it received and has large number of simultaneous users.
Data Warehouse Interview Questions and Answers
What is OLAP?
OLAP is abbreviated as Online Analytical Processing, and it is set to be a system which collects, manages, processes multi-dimensional data for analysis and management purposes.
Data Warehouse Interview Questions and Answers
What is ODS?
ODS is abbreviated as Operational Data Store and it is a repository of real time operational data rather than long term trend data.
Data Warehouse Interview Questions and Answers
What is ODS?
ODS is abbreviated as Operational Data Store and it is a repository of real time operational data rather than long term trend data.
