Application operation and maintenance management AOM service supports in-depth docking application services, one-stop collection of operation and maintenance data of infrastructure, middleware and application instances, which of the following descriptions about AOM features is wrong?

• A. Application monitoring: regularly collect JVM, service calls, exceptions, external calls, database access and other middleware indicator data of Java applications through probes
• B. Flexible notification of alarms, providing multiple anomaly detection strategies and supporting rich abnormal alarm triggering methods and APIs
• C. Apply auto-discovery. Automatically deploy the collector, which can actively discover and monitor the application according to the operating environment of the application
• D. Fast diagnosis of faults: quickly find abnormal fault points through distributed call tracing

The container uses cgroup technology to limit the use of CPU and memory. Reasonably setting the request and upper limit of container resources can effectively guarantee the resource usage quota of the container, avoid resource preemption and affect the stability of the operating environment, and do not affect container resources. Setting the upper limit of the quota can effectively improve the resource utilization of the node

• A. False
• B. True

An enterprise deploys new services in HUAWEI CLOUD through the cloud container instance service CCI. The operation and maintenance personnel MR Wang is going to connect the CCI instance to the application operation and maintenance management service AOM to facilitate subsequent viewing and retrieval of logs. Which of the following description of connecting CCI to AOM service is correct? (Multiple choice)

• A. Support ".log", ".trace", ".out" log files under the log path
• B. There is no limit to the number of log files, but the log storage space needs to be billed
• C. The log can be dumped to the AOM service by means of log dump
• D. You need to add log storage to the container when creating the load

High-performance computing, big data and other services provide excellent computing performance and data security.
Among the following features about bare metal servers, which ones are safe and reliable? (Multiple choice)

• A. Support the docking of dedicated storage to meet the business security and reliability demands of enterprise data security and supervision
• B. Architecture-based bare metal servers support cloud disks as system disks and data disks, and support hard disk backup and recovery capabilities
• C. Based on accelerated hardware, cloud disks can be quickly provisioned as system disks
• D. Support heterogeneous computing and AI applications

A large Internet company is planning to deploy a test environment on Huawei Cloud. The operation and maintenance director requires that when purchasing an elastic cloud server, in addition to the system disk, an additional data disk must be added, and the IOPS limit of the data disk must be higher than the upper limit. 2,220, the cloud disk with the lowest IOPS burst limit value higher than 6,500 and the lowest cost.
Which of the following descriptions about EVS types of cloud disks is most suitable? (Multiple choice)

• A. High IO Cloud Disk
• B. Universal SSD Cloud Disk
• C. Ultra-high IO cloud hard disk
• D. Extremely fast SSD cloud hard disk