In a Log, a DBMS Places Which of the Following

question 55

Multiple Choice

In a log, a DBMS places which of the following?

• A) a copy of a record prior to a change
• B) the actual change to a record
• C) a copy of a record after a change
• D) all of the above

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Definitions:

Opportunity Cost

The cost of forfeiting the next best alternative when one option is chosen over another.

Comparative Advantage

The capability of a company, individual, or country to manufacture a product or offer a service with a reduced opportunity cost than competing entities.

Specialization

The process of focusing efforts and resources on a limited range of activities, goods, or services to gain efficiency or expertise.

Opportunity Cost

Declining the opportunity for potential benefits from a range of alternatives upon selecting one.