H13-821_V3.0 試験問題を無料オンラインアクセス

The elastic cloud server ECS can switch the system disk by switching the operating system. Which description is wrong?

• A.Images that support switching include public images, private images, shared images, and market images
• B.Switching the operating system does not affect the data on the data disk
• C.After the switch is completed, the system disk ID of the ECS will change, and the original system disk will be deleted.
• D.Support X86 architecture and Kunpeng architecture servers to switch between operating systems

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

The implementation of cloud-native applications is usually based on the micro-service architecture. Which of the following descriptions about the underlying technology of the micro-service architecture is correct? (Multiple choice)

• A.Non-intrusive service governance can be achieved through Istio
• B.Containerized deployment can be realized through Kubernetes container orchestration and scheduling
• C.Agile infrastructure can be realized through unified scheduling of OpenStack resources
• D.Continuous development and integration can be achieved through the microservice framework Spring Cloud

In the era of rapid Internet development, data is not only very important for individuals, but also especially important for all industries such as the country, government, finance and medical care. For important data, it is necessary to back up key application data every day, such as ERP, CRI, mailbox server and document server data, and perform a full business backup every weekend.

• A.True
• B.False

Which of the following descriptions about Huawei Cloud Container Instance Service CCI is correct? (Multiple choice)

• A.Support automatic application deployment
• B.No need to pay attention to the expansion of cluster nodes
• C.Need to open up network and storage resources by yourself
• D.You need to build your own K8S cluster