When using Alibaba Cloud Anti-DDoS Service/WAF in China Mainland, you must finish ICP Filing beforehand.

The protection rules of Alibaba Cloud WAF are updated in real time after a user makes changes in WAF configuration page.

There is a limit on the number of Customer Master Keys (CMKs) that users can create using Key Management Service (KMS), but users can raise this limit by submitting a support ticket to Alibaba Cloud.

Clean bandwidth refers to the maximum normal clean bandwidth that can be processed by Anti-DDoS Premium instances when your business is not under attack. Make sure that the Clean bandwidth of the instance is greater than the peak value of the inbound or outbound traffic of all services connected to the Anti-DDoS Premium instances If the actual traffic volume exceeds the maximum Clean bandwidth, your business may be subject to traffic restrictions or random packet losses, and your normal business may be unavailable, slowed, or delayed for a certain period of time

In a public cloud environment Alibaba Cloud is responsible for security of cloud computing infrastructure (such as the IDC environment, physical server O&M, and virtualization layer of cloud products). However, you still need to perform necessary security optimization measures for the Cloud products you purchased Which of the following actions do you think are safe?