A Data Flow Diagram Is Used by Systems Professionals to Show

question 88

Multiple Choice

A Data Flow Diagram is used by systems professionals to show the logical design of a system.The advantage of the method is that it uses only four symbols.The symbol used to represent the flow of data is a(n) :

• A)Rectangle with rounded corners
• B)Open-ended rectangle
• C)Arrow
• D)Rectangle with squared corners

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Definitions:

Circadian Rhythms

Biological processes that display an endogenous, entrainable oscillation of about 24 hours, affecting various physiological functions in living organisms.

Reticular Activating System

A network of nerves in the brainstem that plays a key role in controlling arousal and the transition between sleep and wakefulness.

Sleep Deprivation

A condition resulting from insufficient sleep, which can impact mental, emotional, and physical health.

Usual Sleep Patterns

The typical sequence and timing of sleep stages and awake periods experienced by an individual over a 24-hour period.