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).
Cables Map: https://www.submarinecablemap.com
Speed Meter: http://www.nixi.in/en/mrtg-statistics
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