How does a network connect to other networks over WAN?

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I mean in like how do we send a signal that could casted over to the other side of the world. Like do we send it to a satellite then send it back or do we send the signal on earth, I’m confused

In: Technology

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Anonymous 0 Comments

almost all internet backbone traffic is transferred over copper wire or fiber optic cable. Since the days of telegraphy we have been able to lay cables across the ocean floor in order to transfer signals between continents. The distance to send a signal to satellite and back to earth again is almost always greater than the distance to send the signal over a cable, even if you’re going halfway around the planet. Most communication satellites orbit at around 22,000 miles, so the round trip distance for a signal is 44,000 miles, while the circumference of the earth is only 24,000 miles.

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