QUESTION $8$

processes move data from databases into data warehouses or data marts, where the data are available for access, reports, and analysis.

Big data analytics

Data mining

Extract, transformation, load $($ETL$)$

Data de$-$duplication

QUESTION $9$

When customer X calls an organization's customer service center, the service representative has access to a complete history of X$\text{'}$s previous calls, as a list of the services $x$ has

purchased, and customer profitability score. All of this information is up$-$to$-$date and is accessed from the company's

Management information system

Transactional database system

Active data warehouse

Online transaction processing system

QUESTION $10$

What is the key advantage of an active data warehouse compared to a traditional data warehouse?

The ADW is less expensive to install and operate

Data from an ADW can be used for DSS$,$ report generation and Business Intelligence

Data in an ADW is constantly updated, providing more current data than a traditional data warehouse

The ADW is more widely available from a larger number of vendors