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How INTERNET works via cables?

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Hey Guys, This video will explain you working of internet using optical fiber cables which are also know as Submarine Cables which was installed by Tier 1 Internet Service Providers across world. I've explain you everything how these internet data packets travels through these cables & how the connection works in WAN (Wide Area Networks). You will also learn how Airtel, Jio 4G, Idea, Vodafone, TATA Communication connects you using these cables in India.