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A Backbone refers to the core infrastructure of a network, providing high-capacity pathways that connect various smaller networks or segments. In the context of the internet or enterprise systems, the backbone carries the bulk of data traffic and links local area networks (LANs), wide area networks (WANs), data centers, and internet exchange points. It consists of high-speed fiber-optic cables, routers, and switches designed for maximum reliability and performance. A well-designed backbone ensures fast, scalable, and stable data communication across regions and organizations.
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