SONET Defines a Hierarchy of Signaling Levels,or Data Transmission Rates,called

question 72

Multiple Choice

SONET defines a hierarchy of signaling levels,or data transmission rates,called ____.

• A) statistical transport signals (StatTS)
• B) empirical transport signals (ETS)
• C) asynchronous transport signals (ATS)
• D) synchronous transport signals (STS)

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Definitions:

Absolute Threshold

The minimum intensity of a stimulus required to be correctly perceived by sensory systems at least 50% of the time.

Difference Threshold

The minimal change in stimulus that can just barely be detected by an organism, also known as the just noticeable difference (JND).

Trichromatic Theory

A theory of color vision proposing that colors are perceived through the relative rates of response by three kinds of cones, each one sensitive to a range of wavelengths.

Opponent-process Theory

A psychological and physiological model that explains how humans perceive colors as the result of complex interactions between various neurons that process color in an antagonistic manner.