Quiz Discussion

Reconciled data is which of the following?

Course Name: SQL -Structured Query Language

  • 1]

    Data stored in the various operational systems throughout the organization

  • 2]

    Current data intended to be the single source for all decision support systems

  • 3]

    Data stored in one operational system in the organization

  • 4]

    Data that has been selected and formatted for end-user support applications

Solution
No Solution Present Yet

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# Quiz
1
Discuss

Which of the following is true for a relational database?

  • 1]

    Data is represented by tables

  • 2]

    Complex programs have to be written for simple queries

  • 3]

    It is difficult to access data

  • 4]

    All of the above

Solution
2
Discuss

A database management system (DBMS) is a

  • 1]

    hardware system used to create, maintain and provide controlled access to a database

  • 2]

    a software system used to create, maintain and provide controlled access to a database

  • 3]

    hardware system used to create, maintain, and provide uncontrolled access to a database

  • 4]

    a software system used to create, maintain, and provide uncontrolled access to a database

Solution
3
Discuss

A star schema has what type of relationship between a dimension and fact table?

  • 1]

    One-to-one

  • 2]

    Many-to-many

  • 3]

    One-to-many

  • 4]

    All of the above

Solution
4
Discuss

The extract process is which of the following?

  • 1]

    Capturing all of the data contained in various operational systems

  • 2]

    Capturing a subset of the data contained in various operational systems

  • 3]

    Capturing a subset of the data contained in various decision support systems

  • 4]

    Capturing all of the data contained in various decision support systems

Solution
5
Discuss

Transient data is which of the following?

  • 1]

    Data in which changes to existing records cause the previous version of the records to be eliminated

  • 2]

    Data in which changes to existing records do not cause the previous version of the records to be eliminated

  • 3]

    Data that are never altered or deleted once they have been added

  • 4]

    Data that are never deleted once they have been added

Solution
6
Discuss

A data warehouse uses

  • 1]

    partial operational data

  • 2]

    future operational data

  • 3]

    historical operational data

  • 4]

    health care data

Solution
7
Discuss

Data scrubbing is which of the following?

  • 1]

    A process to reject data from the data warehouse and to create the necessary indexes

  • 2]

    A process to load the data in the data warehouse and to create the necessary indexes

  • 3]

    A process to upgrade the quality of data after it is moved into a data warehouse

  • 4]

    A process to upgrade the quality of data before it is moved into a data warehouse

Solution
8
Discuss

The active data warehouse architecture includes which of the following?

  • 1]

    At least one data mart

  • 2]

    Data that can extracted from numerous internal and external sources

  • 3]

    Near real-time updates

  • 4]

    All of the above

Solution
9
Discuss

An operational system is which of the following?

  • 1]

    A system that is used to run the business in real-time and is based on historical data

  • 2]

    A system that is used to run the business in real-time and is based on current data

  • 3]

    A system that is used to support decision making and is based on current data

  • 4]

    A system that is used to support decision making and is based on historical data

Solution
10
Discuss

A shared database should

  • 1]

    be accurate and available

  • 2]

    be secure

  • 3]

    provide for backup and recovery

  • 4]

    All of the above

Solution
# Quiz