Quiz Discussion

A database application can perform which of the following activities?

• 1]

  Add records

• 2]

  Update records

• 3]

  Read records

• 4]

  All of the above

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

An enterprise database is which of the following?

• 1]

  A database designed to support only users external to an organization

• 2]

  A database designed to support an entire organization

• 3]

  A database designed to support a single PC

• 4]

  A database designed to support a relatively small group

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

The generic two-level data warehouse architecture includes which of the following?

• 1]

  At least one data mart

• 2]

  Data that can be extracted from numerous internal and external sources

• 3]

  Near real-time updates

• 4]

  All of the above

An enterprise data model is

• 1]

  a graphical model that shows the high-level entities for an organization

• 2]

  a graphical model that shows all entities for an organization

• 3]

  a non-graphical model that shows the high-level entities for an organization

• 4]

  a non-graphical model that shows all entities for an organization

A data warehouse uses

• 1]

  partial operational data

• 2]

  future operational data

• 3]

  historical operational data

• 4]

  health care data

A multifield transformation does which of the following?

• 1]

  Converts data from one field into multiple fields

• 2]

  Converts data from multiple fields into one field

• 3]

  Converts data from multiple fields into multiple fields

• 4]

  All of the above

Legacy data is which of the following?

• 1]

  Data contained in a newly-installed system

• 2]

  Data contained in a file system

• 3]

  Data rejected during the installation of a new system

• 4]

  Data contained by a system used prior to the installation of a new system

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