“`考察点:http协议

参考回答;

https协议要申请证书到ca,需要一定经济成本;2) http是明文传输,https是加密的安全传输;3) 连接的端口不一样,http是80,https是443;4)http连接很简单,没有状态;https是ssl加密的传输,身份认证的网络协议,相对http传输比较安全。

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