The Device Similar to a DSL Router, but Used in a FTTH

question 57

True/False

The device similar to a DSL router, but used in a FTTH environment is called an optical network unit.

---

Definitions:

N2 Sleep

A stage of sleep characterized by sleep spindles and K-complexes, marking a deeper sleep than N1 and preceding the deeper states of N3 and REM sleep.

REM Sleep

A unique phase of sleep in mammals and birds, characterized by rapid movement of the eyes, low muscle tone throughout the body, and the propensity of the sleeper to dream vividly.

Sleep Spindles

Bursts of oscillatory brain activity visible on an EEG that occur during stage 2 of NREM sleep, believed to play a role in learning and memory consolidation.

N1 Sleep

The initial stage of sleep in a typical sleep cycle, characterized by light sleep from which one can be easily awakened.