Three elements of network programming agreement
Protocol: data exchange rule is established in a computer network, a set of standards or conventions.
- UDP (can be likened to send text messages, I give you a text message, you can not boot, this number may not be present)
- Connectionless-oriented, unsafe data, speed. Does not distinguish between the client and the server.
- TCP
- Connection-oriented (three-way handshake), data security, speed slightly lower. Divided into client and server.
- Three-way handshake: The client initiates with your service request, the server responds to the request, transmitted data.
