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It's neither. IP is a transport layer protocol. Connection/Connectionless imply the network layer.

Look up the OSI model.

Actually you are correct, but it doesn't just go that far. The definition of connectionless is the ability to send and receive packets without already establishing connectivity between two or more specific entities. IPv4 is connectionless, meaning if I send information via IPv4 I can just send the packets without having to do much more than click "return".

Hope this helps.

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Q: Ipv4 is connectionless or connection oriented?
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