Introduction to LAN & WAN?

Question

About the LAN & WAN Please Answer me

Answer 1

Lan,
A local area network (LAN) is a computer network covering a
local area, like a home, office, or group of buildings. Current LANs are most likely to be based on switched IEEE 802.3 Ethernet, or on Wi-Fi technology running at 10, 100 or 1,000 Mbit.
A wide area network or WAN is a computer network covering a broad geographical area. Contrast with personal area networks (PANs), metropolitan area networks (MANs) or local area networks (LANs) that are usually limited to a room, building or campus. The largest and most well-known example of a WAN is the Internet.

WAN,

WANs are used to connect local area networks (LANs) together, so that users and computers in one location can communicate with users and computers in other locations. Many WANs are built for one particular organization and are private. Others, built by Internet service providers, provide connections from an organization's LAN to the Internet. WANs are most often built using leased lines. At each end of the leased line, a router connects to the LAN on one side and a hub within the WAN on the other. Leased lines can be very expensive. Instead of using leased lines, WANs can also be built using less costly circuit switching or packet switching methods. Network protocols including TCP deliver transport and addressing functions. Protocols including Packet over SONET, MPLS, ATM and Frame relay are often used by service providers to deliver the links that are used in WANs. X.25 was an important early WAN protocol, and is often considered to be the "grandfather" of Frame Relay as many of the underlying protocols and functions of X.25 are still in use today (with upgrades) by Frame Relay.

Answer 2

LAN Basics

A LAN connects network devices over a relatively short distance. A networked office building, school, or home usually contains a single LAN, though sometimes one building will contain a few small LANs, and occasionally a LAN will span a group of nearby buildings. In IP networking, one can conceive of a LAN as a single IP subnet (though this is not necessarily true in practice).

Besides operating in a limited space, LANs include several other distinctive features. LANs are typically owned, controlled, and managed by a single person or organization. They also use certain specific connectivity technologies, primarily Ethernet and Token Ring.
WAN Basics

As the term implies, a wide-area network spans a large physical distance. A WAN like the Internet spans most of the world!

A WAN is a geographically-dispered collection of LANs. A network device called a router connects LANs to a WAN. In IP networking, the router maintains both a LAN address and a WAN address.

WANs differ from LANs in several important ways. Like the Internet, most WANs are not owned by any one organization but rather exist under collective or distributed ownership and management. WANs use technology like ATM, Frame Relay and X.25 for connectivity.

http://compnetworking.about.com/od/networkdesign/l/aa040801a.htm
http://www.cisco.com/univercd/cc/td/doc/cisintwk/idg4/nd2001.htm

Answer 3

CIS 2321 Introduction to LAN and WAN
Standard. CIS 2321 Introduction to LAN and WAN. Course Description ... Basic LAN devices. Evolution of network devices. Building LANs ...
http://www.dtae.org/teched/standards/courses/cis2321.2002.html -



In this era of globalization and hyper
Course II - Introduction to LAN/ WAN Technologies. Duration: 5 days ... addressing, Network Management, LAN/WAN technologies, Routing protocols and ...
http://www.indiaeducation.ernet.in/home/facilities.htm

Answer 4

lan : local area network . when you connect one lan with another lan with the help of an isp ,it forms a wan :wide area network.within a lan we can use private ip's, but when communicating with the other lans we requir public ip's.

Answer 5

LAN is Local Area Network
WAN is Wide Area Network
So this is introduction

Answer 6

If anything a degree will show an employer dedication to an employer. It can open doors depending on the school and if they are able to get companies recruiting at the college. I have an Associates degree. However with a degree you would be best to also get certifications and whatever experience you can get. Start in a helpdesk center or bottom to build experience.

Answer 7

Check out for these two sites:
http://compnetworking.about.com/cs/lanvlanwan/g/bldef_lan.htm

http://learnlinux.tsf.org.za/courses/build/net-admin/ch03s06.html

Answer 8

http://bartman1.blogspot.com/ this site answeres that