THE DATABASE ENVIRONMENT QUIZ

Database management systems were first introduced in the 1950s.

False

True

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Which of the following is true for a relational database?

It is difficult to access data.

Complex programs have to be written for simple queries.

Data is represented by tables.

All of these

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The most common source of database failures in an organization is the failure to implement a strong database administration function.

True

False

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The primary mechanism for providing context for data is metadata.

False

True

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An enterprise database is which of the following?

A database designed to support a single PC

A database designed to support an entire organization

A database designed to support only users external to an organization

A database designed to support a relatively small group

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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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An advantage of the database approach is the creation of maximum data redundancy.

True

False

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Duplicate data often results in loss of data integrity because:

Neither A &

Both A &

the data formats may be inconsistent.

data values may not agree.

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Stand-alone databases exhibit many of the same advantages common to file processing systems.

False

True

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

True

False

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