Data warehouse | UGC NET Dec 2018

Q1. UGC NET Dec 2018 

​​​​​​​Data warehouse contains _____ data that is never found in operational environment.
a) Summary
b) Encoded
c) Encrypted
d) Scripted
Sol. A data warehouse is a large collection of business data used to help an organization make decisions. 
In data warehouse summaries are very valuable because they are pre-compute long operations in advance.
So, Data warehouse contains summary data that is never found in operational environment.
Option a) Summary is the correct answer.