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Data Warehousing

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Questions and Answers

Which of the following is NOT a characteristic of a data warehouse?

Allows for analytical reporting

Stores data in a structured format (correct)

Uses Online Analytical Processing (OLAP)

Combines data from different sources

What is the process of arranging and storing data in a data warehouse called?

Data cleaning

Data mining

Data warehousing (correct)

Data integration

What is the purpose of data cleaning in data warehousing?

To enable analytical reporting

To ensure data accuracy and consistency (correct)

To combine data from different sources

To assist management inquiries

Which type of queries are commonly supported by data warehouses?

Ad hoc queries Signup and view all the answers

What is the main difference between a data warehouse and a database?

Data warehouses combine data from different sources, while databases store data from a single source Signup and view all the answers

Which of the following is NOT a component of data warehousing?

Data mining Signup and view all the answers

What is the difference between a data warehouse and a database?

A data warehouse stores historical data, while a database stores current data Signup and view all the answers

What is the purpose of a data warehouse?

To perform online analytical processing Signup and view all the answers

What is the process of transforming data into information called?

Data warehousing Signup and view all the answers

Which of the following is NOT a type of data warehousing?

Transactional data warehousing Signup and view all the answers