DWDM Quiz 1

. __________ is a subject-oriented, integrated, time-variant, nonvolatile collection of data in support of management decisions.

• Data Mining

• Data Warehousing

• Web Mining

• Text Mining

The data Warehouse is__________

• read only

• write only.

• read write only

• none

. Expansion for DSS in DW is__________

• Decision Support system

• . Decision Single System

• Data Storable System

• Data Support System.

The important aspect of the data warehouse environment is that data found within the data warehouse is___________.

• subject-oriented.

• time-variant

• integrated

• All of the above

The time horizon in Data warehouse is usually __________.

• 1-2 years.

• 3-4years

• 5-6 years

• 5-10 years

The data is stored, retrieved & updated in ____________.

• OLAP

• OLTP

• SMTP

• FTP

__________describes the data contained in the data warehouse.

• Relational data

• Operational data

• Metadata

• Informational data

_________ is the heart of the warehouse.

• Data mining database servers

• Data warehouse database servers.

• Data mart database servers

• Relational data base servers.

The star schema is composed of __________ fact table.

• 1

• 2

• 3

• 4

Data can be updated in _____environment.

• data warehouse

• . data mining.

• operational

• informational