What is a data warehouse?
A.
A repository of information from heterogeneous databases
B.
A remote facility used for storing backup tapes
C.
A hot backup building
D.
A table in a relational database system
Explanation:
The correct answer is a repository of information from heterogeneous
databases.
Answers “A remote facility used for storing backup tapes” and “A hot backup building” describe
physical facilities for backup and recovery of information systems, and answer “A table in a
relational database system” describes a relation in a relational database.