Topic 2

Question 1

The data that are used to
represent other data is known as _________.
It is simply defined as data about data.

Answer 1

Metadata

Question 2

Types of Metadata Repository(4):

Answer 2

• Business Metadata
• Operational Metadata
• Data for mapping from operational environment to data warehouse
• The algorithms for summarization

Question 3

It helps us represent data in multiple dimensions.

Answer 3

Data Cube

Question 4

Contain a subset of organization-wide data that is valuable to specific groups of people in an organization.

Answer 4

Data Mart

Question 5

The view over an operational data warehouse is known as _________

Answer 5

Virtual Warehouse