8 JUNE 2021 CURRENT AFFAIRS QUIZ

True

False

Converts data from one field into multiple fields

Converts data from multiple fields into one field

Converts data from multiple fields into multiple fields

All of these

Data that are never altered or deleted once they have been added

Data in which changes to existing records cause the previous version of the records to be eliminated

Data that are never deleted once they have been added

Data in which changes to existing records do not cause the previous version of the records to be eliminated

A system that is used to run the business in real time and is based on historical data.

A system that is used to support decision making and is based on historical data.

A system that is used to run the business in real time and is based on current data.

A system that is used to support decision making and is based on current data.

A process to load the data in the data warehouse and to create the necessary indexes

A process to reject data from the data warehouse and to create the necessary indexes

A process to upgrade the quality of data after it is moved into a data warehouse

A process to upgrade the quality of data before it is moved into a data warehouse

True

False

One-to-one

Many-to-many

All of these

One-to-many

Capturing all of the data contained in various operational systems

Capturing a subset of the data contained in various decision support systems

Capturing all of the data contained in various decision support systems

Capturing a subset of the data contained in various operational systems

True

False

Can be updated by end users.

Contains numerous naming conventions and formats.

Organized around important subject areas.

Contains only current data.