Key Terms

Before you take the exam, be certain you are familiar with the followingterms:

asynchronous transfer mode (ATM)	modem
B (Bearer) channels	offline
bonding	public
cell	remote access protocol
Central Office	self-powered
circuit switching	signal
D (Delta) channel	single-attached stations (SAS)
demarcation point (demarc)	SONET (Synchronous Optical Network)
dual-attached stations (DAS)	splitter
endpoint	switched
internal modems	trunk lines
inverse multiplexing	virtual COM
local loop