Huawei H13-821_V3.0-ENU 問題集

質問 1：
Compared with cloud database RDS, Huawei's self-developed database GaussDB has many advantages over cloud database RDS in terms of system architecture and other aspects. Which of the following descriptions related to GaussDB is wrong?
A. There is only one copy of storage, no need to purchase additional storage. If there are more read-only nodes, the storage cost will be saved more
B. All update operations are only logged, and Double write is no longer required. Reduced valuable network bandwidth
C. With multiple storages, when the access volume is large, the read and write performance of the database will be significantly improved
D. There is no longer a standby database, and all read-only databases are in the Active state. And bear the read traffic, making resource utilization higher
正解：C

質問 2：
Users can adjust the elastic public network IF or shared bandwidth through the flexible bandwidth function of the elastic scaling service.
Which of the following policy types are supported when creating scaling bandwidth policies? (Multiple choice)
A. Cycle strategy
B. Resource strategy
C. Timing strategy
D. Alert strategy
正解：A,B,D

質問 3：
A customer purchased an elastic cloud server to deploy its business. In order to save costs, it is planned to shut down some servers when the business traffic is low.
After shutdown, which of the following basic resources are not billed? (Multiple choice)
A. CPU
B. Data Disk
C. ENI
D. memory
正解：A,D

質問 4：
The elastic public network IP can be flexibly bound and unbound with resources such as elastic cloud servers, bare metal servers, elastic load balancing, and NAT gateways. It has a variety of flexible billing methods to meet the needs of various business scenarios.
But there are also many constraints and restrictions. Which of the following descriptions about constraints and restrictions is wrong?
A. After the elastic public network IP is released, if it is used by other users, you can submit a work order to apply for retrieval
B. Only unbound EIPs can be bound
C. An elastic public IP can only be bound to one cloud resource, and the elastic public IP and cloud resources must be in the same region
D. Only unbound EIP addresses can be released. Bound EIP addresses need to be unbound before they can be released.
正解：A

質問 5：
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. False
B. True
正解：B

質問 6：
Application operation and maintenance management service AOM is a one-stop three-dimensional operation and maintenance management platform for cloud applications. It monitors cloud applications and related cloud resources in real time, and analyzes the health status of applications. Which of the following descriptions of AOM services are correct? (Multiple choice)
A. Supports custom notification actions, and can obtain alarm information through emails, text messages, etc., which can help users find abnormalities and their root causes in the first time
B. The ICAgent installed on the host will automatically collect application information, including process name, component name, container name, etc.
C. AOM provides log management capabilities and can dump logs to the object storage OBS service
D. Through host monitoring, you can keep abreast of the resource usage, trends and alarms of the host. Using this information, you can respond quickly and ensure the smooth operation of the host
正解：A,B,C

質問 7：
Architectural high availability refers to improving the availability of systems and applications by minimizing the downtime caused by routine maintenance operations and sudden system crashes.
Which of the following options is not a high-availability architecture design?
A. Increase network bandwidth
B. Use load balancing service to realize traffic distribution control
C. Design system elastic scaling
D. Use disaster recovery backup service
正解：A