Q.1
A snowflake schema is which of the following types of tables?
Q.2
The generic two-level data warehouse architecture includes which of the following?
Q.3
Fact tables are which of the following?
Q.4
Data transformation includes which of the following?
Q.5
Reconciled data is which of the following?
Q.6

A snowflake schema is which of the following types of tables?

  • Fact
  • Dimension
  • Helper
  • All of the above
Q.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.
Q.8

The load and index 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
Q.9

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
Q.10

Both status data and event data can be stored in a database.

  • True
  • False
Q.11

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

  • True
  • False
Q.12

A data mart is designed to optimize the performance for well-defined and predicable uses.

  • True
  • False
Q.13

Fact tables are which of the following?

  • Completely denoralized
  • Partially denoralized
  • Completely normalized
  • Partially normalized
Q.14

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
Q.15

The extract process is which of the following?

  • Capturing all of the data contained in various operational systems
  • Capturing a subset of the data contained in various operational systems
  • Capturing all of the data contained in various decision support systems
  • Capturing a subset of the data contained in various decision support systems
Q.16

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.
Q.17

Static extract is used for ongoing warehouse maintenance.

  • True
  • False
Q.18

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

  • True
  • False
Q.19

Successful data warehousing requires that a formal program in total quality management (TQM) be implemented.

  • True
  • False
Q.20

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.
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