To determine how many people can be supported by 5Mbps bandwidth on a cloud server, multiple factors need to be considered, including the type of website, the characteristics of the access traffic, the bandwidth requirements of each user, and other services running on the server. Therefore, it is difficult to give an exact number. However, I can provide some general references.

　　First, you need to know the meaning of 5Mbps bandwidth. Mbps represents the amount of data transmitted per second, and 5Mbps means 5 megabits of data transmitted per second. Under ideal circumstances, if each user's bandwidth requirement is 1Mbps, then 5Mbps bandwidth can support approximately 5 users accessing at the same time. However, the actual situation is often more complex because different users may have different access patterns and bandwidth needs.

　　In addition, factors that need to be considered include the type of website and the traffic volume. If it is a static website or lightweight application, 5Mbps bandwidth may be able to support more users than a dynamic website or large-scale online application. The characteristics of the access traffic will also have an impact on the bandwidth requirements. For example, if the website has a large number of pictures, videos or downloaded files, it may consume more bandwidth.

　　Best practice is to conduct bandwidth needs assessment and monitoring. You can determine whether the bandwidth is sufficient to support current access needs by monitoring the server's bandwidth usage and user visits. If you find that the bandwidth is not enough to support user needs, you can consider upgrading the bandwidth or optimizing website content to reduce bandwidth consumption.

　　In short, how many people a 5Mbps bandwidth cloud server can support depends on many factors, including user bandwidth requirements, website type and access traffic, etc. It's best to evaluate and monitor on a case-by-case basis to ensure bandwidth meets user needs.