WAN Technologies
WAN Technologies refers to the various methods and protocols used to connect geographically distant networks across Wide Area Networks (WANs). WANs are networks that span over large areas, like cities, states, or countries. Several key WAN technologies are employed to establish these connections, such as leased lines (dedicated point-to-point circuits), ISDN (Integrated Services Digital Network), Frame Relay (a packet-switching technology), MPLS (Multiprotocol Label Switching, used for routing decisions), and VPN (Virtual Private Network, which creates a secure and encrypted connection across the internet). Being knowledgeable about WAN technologies is essential for network professionals to properly design, monitor, and maintain remote network connections.
Guide: WAN Technologies (CompTIA Network+ / Network Architecture)
What is WAN Technologies?
WAN Technologies refers to the various methods and devices used to connect local area networks (LANs) and other types of networks over long distances. This includes technologies like leased lines, packet switching, and circuit switching.
Why is it important?
Understanding WAN Technologies is crucial because it enables reliable and efficient communication over large geographical areas. This technology enables businesses, governments, and other entities to be interconnected, irrespective of their location.
How it works?
WAN technologies works by using various devices like routers, modems and switches along with connections like public networks, private leased lines or at times satellite links to connect smaller networks into one large network- WAN. The data is transmitted over this network according to various protocols.
Answering questions on WAN Technologies in an exam:
Important concepts to understand include different WAN technologies (leased lines, packet switching, circuit switching), their pros, cons, usage scenarios and their workings. You will also need to differentiate between them and know their purpose.
Exam Tips:
1. Understand the difference between LAN and WAN
2. Understand the working of routers, modems, and switches in a WAN
3. Familiarize yourself with terms like packet switching, circuit switching
4. Understand the role of protocols in WAN Technologies
5. Be able to differentiate between public and private networks in the context of WAN
It is important to note that comprehension and application of knowledge is key, rather than rote learning. Make sure to use diagrams and examples to aid your understanding.
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