In an E-R Diagram, a Line Between Two Entities Represents

question 101

Multiple Choice

In an E-R diagram, a line between two entities represents a(n) ________.

• A)attribute
• B)identifier
• C)cardinality
• D)relationship

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Definitions:

Nightmare Disorders

A sleep disorder characterized by frequent and vivid nightmares, often resulting in distress or impairment in social or occupational functioning.

REM Sleep

Rapid Eye Movement sleep; a unique phase of sleep characterized by rapid movement of the eyes, dreaming, and increased brain activity.

Shift Work Type

A work schedule that consists of hours different from the traditional 9 am to 5 pm, often involving evening or night shifts, early morning shifts, and rotating shifts.

Circadian Rhythm Disorder

A disruption in the natural circadian rhythm, the internal clock that regulates sleep-wake cycles, leading to sleep disturbances and other health issues.