Huawei Cloud Distributed Database Middleware DDM service as ( ) pre-distributed distributed database access service.

HUAWEI CLOUD application performance management service completes application performance data collection by installing a collection agent on the node where the application is located. The collection agent is based on the industry's Pinpoint open source project and uses JM bytecode enhancement technology to collect application indicators in a non-intrusive manner.
What kind of technology stack does not support the application developed by APM?

Regarding the difference between stateless applications and stateful applications, which of the following statements are correct? (Multiple Choice)

Which places are the construction scope of the smart park? (Multiple choice)

Blockchain is a versatile technology that can replace databases and the Internet. Huawei Blockchain Service (BCS) is a high-performance, high-availability and high-security blockchain technology platform service for enterprises and developers. It is suitable for scenarios such as data transactions, identity authentication, new energy, Internet of Vehicles, and supply chain traceability.