What is the juncture at which the CPE ends and the local loop portion of the service begins?
A. Demarc B. CO C. Local loop D. Last-mile Ans A The demarcation or demarc is the juncture at which the CPE ends and the local loop portion of the service begins. The CO (Central Office) is the nearest point of presence for the provider’s WAN service. The local loop or “last-mile” is the cabling that extends from the demarc into the WAN service provider’s central office. 84 You can access three forms of WAN services with Cisco routers. Select the three forms: A. Switched or relayed services B. Interface front end to IBM enterprise data center computers C. Using protocols that connect peer-to-peer devices like HDLC or PPP encapsulation. D. IPX/SPX E. NetBEUI Ans: A, B & C You can access three forms of WAN services with Cisco routers. Switched or relayed services include X.25, Frame Relay, and ISDN. An interface front end to IBM enterprise data center computers includes SDLC. And, you can access the services of WAN providers using protocols that connect peer devices such as HDLC and PPP
