Which Is NOT a Step in Moving from a Logical

question 18

Multiple Choice

Which is NOT a step in moving from a logical data model to a physical data model?

• A)Change entities to tables (or files)
• B)Change data flows to create / read / update / delete (CRUD)operations
• C)Change Attributes to Fields
• D)Add primary keys
• E)Add foreign keys

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Definitions:

Genetically Identical

Organisms or cells that have exactly the same DNA sequence in every respect, typically resulting from asexual reproduction or cloning.

Analog-to-Digital Converter

A device or system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal.

Telephony

The technology that enables voice communication over distances, traditionally through the transmission of sound via phone lines but now also encompassing internet-based services.

Digital Signal

A signal that represents data as a sequence of discrete values; opposed to an analog signal's continuous range.