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WAN
WAN stands for Wide Area Network, which is a type of computer network that spans over a large geographical area, typically covering multiple cities, states, or even countries. Unlike LANs (Local Area Networks) which are confined to a single location, WANs are designed to connect geographically dispersed networks and allow devices in different locations to communicate with each other.
WANs use a variety of technologies and protocols to facilitate communication between devices over long distances, including:
Circuit-switched networks: These networks establish a dedicated physical connection between two devices for the duration of a communication session. Examples of circuit-switched networks include traditional telephone systems and leased lines.
Packet-switched networks: These networks divide data into small packets that are sent over a shared communication channel. Packet-switched networks are more efficient than circuit-switched networks and are used by most modern WANs, including the internet.
MPLS (Multiprotocol Label Switching): This technology is used to improve the speed and efficiency of packet-switched networks by assigning labels to packets and routing them along pre-determined paths.
VPN (Virtual Private Network): VPNs use encryption to create a secure and private connection between two devices over a public network, such as the internet.
WAN optimization: This technology is used to improve the performance of WANs by reducing the amount of data that needs to be transmitted and optimizing the way data is transmitted. WANs are commonly used by businesses, governments, and other organizations that need to connect devices and networks across different locations. Examples of WANs include the internet, corporate wide-area networks, and telecommunications networks.
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