CISCO QUIZ

Data Terminal Equipment (DTE)

This is the device that connects the subscriber LANs to the WAN communication device (i.e., DCE).

Data Communications Equipment (DCE)

• Also called data circuit-terminating equipment, this is the device used to communicate with the provider.

Customer Premises Equipment (CPE)

• This is the DTE and DCE devices (i.e., router, modem, optical converter) located on the enterprise edge.

Point-of-Presence (POP)

• This is the point where the subscriber connects to the service provider network.

Demarcation Point

• This is a physical location in a building or complex that officially separates the CPE from service provider equipment. typically a cabling junction box, located on the customer premises, that connects the CPE wiring to the local loop.

Local Loop (or last mile)

• This is the actual copper or fiber cable that connects the CPE to the CO of the service provider.

Central Office (CO)

• This is the local service provider facility or building that connects the CPE to the provider network.

Toll network

• This includes backhaul, long-haul, all-digital, fiber-optic communications lines, switches, routers, and other equipment inside the WAN provider network.

Backhaul network

• connect multiple access nodes of the service provider network. can span over municipalities, countries and regions.

Backbone network

• (Not shown) These are large, high-capacity networks used to interconnect service provider networks and to create a redundant network.

Voiceband Modem

• Also known as dial-up modem. Legacy device that converted (i.e., modulated) the digital signals produced by a computer into analog voice frequencies.

DSL Modem and Cable Modem

• Collectively known as broadband modems, these high-speed digital modems connect to the DTE router using Ethernet.

CSU/DSU

• It connects a digital device to a digital line. can be a separate device like a modem or it can be an interface on a router.

Optical Converter

• Also known as an optical fiber converter.