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How does the internet move a message from one computer to another?

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Answer: Data is split into packets that routers forward toward the destination

Data is split into packets that routers forward toward the destination ✓ — Messages travel as packets that routers forward toward their destination using address information. Packets can share network links with other traffic and may follow different routes. They do not need a dedicated circuit for the whole conversation.

A dedicated phone circuit stays reserved for the whole exchange — A dedicated circuit describes circuit switching, not how the internet normally carries messages. Packet switching lets many conversations share the same links rather than reserving an entire circuit for one.

One radio signal carries the entire message straight to the other computer — Internet messages do not normally travel as one direct radio signal between distant computers. A WiFi link can carry packets locally, while the rest of the route can include fiber, cables or other wireless links.

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