THE DATABASE ENVIRONMENT QUIZ

A database application can perform which of the following activities?

Update records

Add records

Read records

All of these

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Which of the following is true for a relational database?

Complex programs have to be written for simple queries.

All of these

It is difficult to access data.

Data is represented by tables.

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Databases that contain historical and summarized information are usually called data warehouses.

True

False

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A data warehouse uses:

historical operational data.

health care data.

future operational data.

partial operational data.

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Data descriptions are stored in a central location called the depository.

False

True

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Structured data may include which of the following?

Video clip

None of these

Dates

Photo image

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Data quality problems currently cost U.S. businesses some $60 million each year (Hudica, 2003).

False

True

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A workgroup typically comprises between 25 and 100 persons.

False

True

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Which of the following types of databases are the most common?

Personal

Enterprise

Workgroup

Department

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An extranet is which of the following?

The use of Internet protocols with unlimited access to company data by the company's customers and suppliers.

The use of Internet protocols with limited access to company data by people within an organization.

The use of Internet protocols with unlimited access to company data by people within an organization.

The use of Internet protocols with limited access to company data by the company's customers and suppliers.

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