Ch3-Fundamentals of WANs

Question 1

A serial communications circuit between two points, provided by some service provider, typically a telco. Because the telco does not sell a physical cable between the two endpoints, instead charging a monthly fee for the ability to send bits between the two sites, the services is considered to be a “leased service”

Answer 1

leased line

Question 2

A part of a larger network that implements mostly OSI Layer 1 and 2 technology, connect sites that typically sit far apart, and uses a business model in which the consumer must lease the WAN from a service provider

Answer 2

wide-area network (WAN)

Question 3

High-level Datalink Control protocol. A bit-oriented synchronous data link layer protocol developed by the ISO

Answer 3

HDLC

Question 4

Public network technology that delivers high bandwidth over conventional telco local-loop copper wiring at limited distance. Typically an asynchronous technology.

Answer 4

Digital Subscriber Line (DSL)

Question 5

An Internet-access technology that uses a cable TV (CATV) cable, normally used for video, to send data

Answer 5

cable Internet

Question 6

A term referring specifically to how a service provider can create an Ethernet WAN service using an MPLS network. More generally, a term referring to Ethernet WAN service.

Answer 6

Ethernet over MPLS (EoMPLS)