________ Was Developed in the Late 1980s by BellCore to Provide

question 20

Multiple Choice

________ was developed in the late 1980s by BellCore to provide a more cost effective means of delivering a T1 data rate.

• A)xDSL
• B)HDSL
• C)QAM
• D)DMT

---

Definitions:

Squamous

Describes a type of flat, thin cells that are found in tissues lining certain internal organs and on the body's surface.

Stratified Squamous Epithelium

A type of epithelial tissue composed of multiple layers of cells, with the outermost layer being flat and scale-like, serving protective functions in areas subject to abrasion.

Stratified Cuboidal Epithelium

A type of tissue composed of multiple layers of cube-shaped cells, often found in sweat glands, mammary glands, and salivary glands.

Simple Squamous Epithelium

Simple squamous epithelium is a type of tissue composed of a single layer of flat cells that facilitates processes like diffusion and filtration, commonly found lining organs such as the alveoli in the lungs.