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?

<p>Ad hoc queries (B)</p> Signup and view all the answers

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

<p>Data warehouses combine data from different sources, while databases store data from a single source (B)</p> Signup and view all the answers

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

<p>Data mining (D)</p> Signup and view all the answers

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

<p>A data warehouse stores historical data, while a database stores current data (B)</p> Signup and view all the answers

What is the purpose of a data warehouse?

<p>To perform online analytical processing (D)</p> Signup and view all the answers

What is the process of transforming data into information called?

<p>Data warehousing (B)</p> Signup and view all the answers

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

<p>Transactional data warehousing (C)</p> Signup and view all the answers

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