Database MCQ - English
- Introduction to Database
- The Relational Model and Normalization
- Data Modeling with ER Model
- SQL for Database Construction
- Managing Multiuser Databases
- SQL Server 2000
- XML and ADO.NET
- Database Processing for BIS
- The Database Development Process
- ER Model and Business Rules
- Physical Database Design
- The Client Server Database
- Data Warehousing
- Distributed Databases
- Object Oriented Database
- Introduction to SQL
- Database Design Using Normalization
- Data Models into Database Designs
- Database Redesign
- Managing Databases with Oracle
- ODBC, OLE DB, ADO, and ASP
- JDBC, Java Server Pages, and MySQL
- The Database Environment
- Modeling Data in the Organization
- Logical Database Design
- Advanced SQL
- The Internet Database Environment
- Data and Database Administration
- Object Oriented Data Modeling
Data Warehousing MCQ Questions and Answers
Home | Database | Data WarehousingIn this section we provide lots of objective question of Data Warehousing in Database Management System.
1) Data scrubbing is which of the following?
A process to reject data from the data warehouse and to create the necessary indexes
A process to load the data in the data warehouse and to create the necessary indexes
A process to upgrade the quality of data after it is moved into a data warehouse
A process to upgrade the quality of data before it is moved into a data warehouse
Answer : D Discuss
2) The @active data warehouse architecture includes which of the following?
At least one data mart
Data that can extracted from numerous internal and external sources
Near real-time updates
All of the above.
Answer : D Discuss
3) A goal of data mining includes which of the following?
To explain some observed event or condition
To confirm that data exists
To analyze data for expected relationships
To create a new data warehouse
Answer : A Discuss
4) An operational system is which of the following?
A system that is used to run the business in real time and is based on historical data.
A system that is used to run the business in real time and is based on current data.
A system that is used to support decision making and is based on current data.
A system that is used to support decision making and is based on historical data.
Answer : B Discuss
5) A data warehouse is which of the following?
Can be updated by end users.
Contains numerous naming conventions and formats.
Organized around important subject areas.
Contains only current data.
Answer : C Discuss
6) A snowflake schema is which of the following types of tables?
7) The generic two-level data warehouse architecture includes which of the following?
At least one data mart
Data that can extracted from numerous internal and external sources
Near real-time updates
All of the above.
Answer : B Discuss
8) Fact tables are which of the following?
Completely denoralized
Partially denoralized
Completely normalized
Partially normalized
Answer : C Discuss
9) Data transformation includes which of the following?
A process to change data from a detailed level to a summary level
A process to change data from a summary level to a detailed level
Joining data from one source into various sources of data
Separating data from one source into various sources of data
Answer : A Discuss
10) Reconciled data is which of the following?
Data stored in the various operational systems throughout the organization.
Current data intended to be the single source for all decision support systems.
Data stored in one operational system in the organization.
Data that has been selected and formatted for end-user support applications.
Answer : B Discuss