After the customer's business system was put on the cloud, the customer operation and maintenance engineer discovered through CES that the memory usage of a certain ECS continued to rise every day, and it has reached 90%. Which of the following measures cannot be taken by the customer operation and maintenance engineer to solve the problem?

Huawei Cloud ELB is a load balancing service that distributes traffic to multiple ECS instances.
Supports four-layer and seven-layer forwarding protocols. When the four-layer service is loaded, which of the following methods is mainly used to distribute the traffic to the ECS instance?

If the tenant deletes the HUAWEI CLOUD 0BS bucket, all files and folders in the bucket must be emptied first.

An enterprise uses Huawei Cloud ELB instances to provide external website services. The operating systems running on ECS instances in the back-end server group must be the same. If you choose to use CentOS, you can only migrate some of the applications that were previously running on windows. Go to CentOS, otherwise the ELB instance will not work properly.

Huawei CDN supports website acceleration,File download acceleration,On-demand acceleration and site-wide acceleration.