When Selecting an Identifier,one Should

question 47

Multiple Choice

When selecting an identifier,one should:

• A)use intelligent keys
• B)use large composite keys instead of single-attribute surrogate keys
• C)choose a candidate key that will not change its value over the life of each instance of the entity type
• D)choose a candidate key such that for each instance of the entity,the attribute is guaranteed to have valid values or is null

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Definitions:

Managing Outsourcing

The practice of overseeing and directing work or services to external vendors to achieve desired outcomes efficiently.

Strategic Focus

The concentration of an organization's efforts and resources on a specific, clearly defined strategic direction or goal to gain a competitive advantage.

Specialized Expertise

The high level of skill or knowledge in a particular area that sets individuals or organizations apart from others.

Strategic Control

A process used by organizations to monitor and adjust their strategies to meet their goals and respond to internal and external changes.