CN 6.0 Chapter 1 Questions And Correct Answers

WAN-wide-area network used to interconnect multiple remote LANs WAN service

provider- an organization such as a telephone network, cable company or satellite

service that provides links to interconnect remote sites customer premises equipment

(CPE) - devices and wiring located on the enterprise edge and owned by the customer

or leased from the service provider

data communications equipment DCE-Answer devices that provide an interface for a

customer to put data on the local loop to the WAN provider

data terminal equipment DTE- Answer devices that pass data from the customer

network through the DCE to the WAN

demarcation point -Answer the place where the responsibility of the connection

changes from the service provider to the customer

local loop Answers the actual copper or fiber wiring that connects the customer

premises equipment to the service provider central offic. central office (CO) Answers

the local service provider building that connects the customers to the service provider

network toll network Answers long-haul fiber-optic communication lines and networking

equipment inside the service provider network

dialup modem - Answer a legacy device that converts digital computer signals into

analog signals that traverse the public telephone network

broadband modem - Answer a digital modem using high-speed DSL or cable Internet

service

CSU/DSU - Answer The CSU terminates the digital signal and provides error correction

and line monitoring. The DSU converts the data into frames understood by the LAN.

WAN switch - Answer a multiport service provider networking device used to switch

traffic at Layer 2