HUAWEI CLOUD Application Operations Management (AOM) is centered on cloud applications and provides a one-stop three-dimensional operation and maintenance platform for enterprise applications.

A certain company's business is often attacked by foreign countries, Hong Kong, Macau, Taiwan and China, and it is found through analysis.
1: Foreign, Hong Kong, Macao and Taiwan attack traffic accounted for 90%, and domestic attack traffic accounted for 10%.
2: Effective visit traffic from foreign countries, Hong Kong, Macao and Taiwan accounted for 5%, and domestic effective visit traffic accounted for 95%.
Therefore, the company's management decided that foreign, Hong Kong, Macao and Taiwan users will follow up to visit the company's business through the new domain name. Which of the following options can quickly and effectively help this company block attacks or access to the original domain name by traffic from foreign countries, Hong Kong, Macao and Taiwan?

Tenants can use IAM's identity provider to interface with their original identity authentication system. This completes the copying and automatic creation of account information.

A company has developed a microservice using AVA-Chassis and PHP offline, and now it needs to be connected to the ServiceStage platform. Which application access method is recommended?

Which of the following components is the service registry of Spring Cloud?