Online Access Free H13-821_V3.0-ENU Practice Test

Enterprise Service Bus (ESB) can provide reliable message transmission, service access, protocol conversion, data format conversion, etc., and content-based routing and other functions, shielding the physical location, protocol and data format of services.

• A.True
• B.False

After an Internet company uses the microservice framework to develop a project, it plans to release it online. It currently plans to use grayscale release. Which of the following description about grayscale release is wrong?

• A.In the early stage, only a small number of users can receive the grayscale release version
• B.Component instances that have been published in friendship can still be restored to the state before grayscale release
• C.If there is a problem with the release, you can roll back to the test version at any time
• D.During the release process, the application needs a short high line

With the rapid growth of Internet business, the application architecture is also constantly changing. Regarding the changes in the mainstream application architecture, which of the following options is not included?

• A.Atomic Architecture
• B.S0A Architecture
• C.Microservice architecture
• D.Monolithic architecture

During the application release (such as application upgrade/update) period of an enterprise, the application will be temporarily unavailable due to application system upgrades and other reasons, and if a major problem is found after the new version is released, it needs to be repaired and re-released. Bring a lot of inconvenience to the business. The company hopes to carry out a small-scale push before the release, and then conduct a large-scale deployment after confirming that there is no abnormality in use, so as to reduce the impact on the business.
Among the following options, which publishing method is recommended?

• A.ABC released
• B.Canary release
• C.Deep Release
• D.Blue Release

Which of the following descriptions about HUAWEI CLOUD container solutions are correct? (Multiple choice)

• A.Implement elastic scaling of cross-cluster applications through elastic load balancing (ELB)
• B.Non-intrusive traffic management can be realized through application service grid ASM
• C.Support cross-cloud unified cluster resource management through the multi-cloud container platform MCP
• D.Realize call chain tracking through application operation and maintenance management AOM