HTTP3, 2, 1

HTTP1 is simple and easy. With enough care you can open a TCP connection and&#xA;hand-write an HTTP request to a server and get a response. Good fun. &#xA; HTTP2 is more complex. Multiple bidirectional requests can be multiplexed over a&#xA;single connection. You might use it with something like GRPC, or to get web&#xA;pages to load faster. &#xA; HTTP3 is wild stuff. Implemented over UDP instead…