DATA WAREHOUSE USING IN DM TEST-1

Where is data warehousing used?

• Logical system 

• Transaction system

• Decision support system

• None of the above

Among which of the following can be used by the warehouse?

• Database table

• Online database

• Flat files

• All of the above

Which of the following statement is true regarding classification?

• It is a measure of accuracy.

• It is a subdivision of a set.

• It is the task of assigning a classification

• None of the above.

Which is the correct option regarding data mining?

• It can be referred to as the mining of knowledge from data

• It can be defined as the process of extracting information from a large collection of data

• The process of data mining involves several other processes like data cleaning, data transformation, and data integration.

• All of the above

Which is the correct process of data mining?

• Infrastructure, exploration, analysis, interpretation, and exploitation

• Exploration, Infrastructure, analysis, interpretation, and exploitation

• Exploration, Infrastructure, interpretation, analysis, and exploitation

• Exploration, Infrastructure, analysis, exploitation, and analysis