云计算ACP认证练习题：（多选）使用阿里云的负载均衡SLB 将负载分发到多台服务器ECS 实例上去的时候，（）即可获得发起请求的用户的真实IP。 A. HTTP使用X-Forward-For 获取源地址 B. 4 层使用X-Forward-For 获取源地址 C. 4 层服务可以直接获取，无需额外配置 D. 7 层服务可以直接获取，无需额外配置

问答 2022-02-15 来自：开发者社区

使用阿里云负载均衡 SLB 将负载分发到多台云服务器 ECS 实例上去的时候,________即可获得发起请求的用户的真实 IP。

A、7 层服务可以通过 Http Header:X-Forwarded-For 获取来访者真实 IP,并保证配置负载均衡 SLB 监听时开启“获取真实访问 IP”B、4 层服务可以通过 Http Header:X-Forwarded-For 获取来访者真实 IP,并保证配置负载均衡 SLB 监听时开启“获取真实访问 IP”C、4 层服务可以直接获取,无需额外配置D、7 层服务可以直接获...

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