True Or False

Question 6 :

Joining is the process of partitioning data according to predefined criteria.


A). True
B). False
Answer : Option B

Question 7 :

The role of the ETL process is to identify erroneous data and to fix them.


A). True
B). False
Answer : Option B

Question 8 :

Data in the data warehouse are loaded and refreshed from operational systems.


A). True
B). False
Answer : Option A

Question 9 :

Star schema is suited to online transaction processing, and therefore is generally used in operational systems, operational data stores, or an EDW.


A). True
B). False
Answer : Option B

Question 10 :

Periodic data are data that are physically altered once added to the store.


A). True
B). False
Answer : Option B