Huawei H13-831 Value Pack (Frequently Bought Together)

Which of the following are typical application scenarios for PostgreSQL data? (Multiple choice)

• A. Internet e-commerce panic buying system.
• B. Geographical location application system
• C. Research project information system
• D. Financial insurance system

A company deploys its own platform service on a Huawei Cloud ECS instance, and regularly collects related logs of each service and database through the cloud log service LTS and stores them in OBS. The service log and database log have different naming methods. The storage period of the service log is 3 days. The database log storage period is one week.
Which of the following solutions to delete expired logs are feasible? (Multiple choice)

• A. Create two 0BS buckets, one bucket to store server logs, and enable lifecycle management rules to match the entire bucket. Configuration days expired and deleted. The other bucket stores database logs and enables lifecycle management rules to match the entire bucket. Configuration days expired delete.
• B. Create an OBS bucket, store service logs and database logs at the same time, create OBS lifecycle management rules, configure by prefix, match server log configuration, delete after 3 days, and delete matching database log after configuration days.
• C. Create an OBS bucket to store service logs and database logs at the same time and configure regular matching service log cleaning policies for 3 days and database logs cleaning policies for 7 days.
• D. Create two OBS buckets, one bucket to store service logs. The SDK provided by the OBS service traverses all objects in the bucket and deletes the logs 3 days ago; the other bucket stores the database logs. Traverse all objects in the bucket through the SDK provided by the OBS service and delete the logs 7 days ago.

Compared with virtual machine. Which of the following are the advantages of containers? (Multiple choice)

• A. Good isolation
• B. Start in seconds
• C. Fine granularity, high resource utilization
• D. Lightweight, small space occupation

Which of the following descriptions about the characteristics of the real-time data stream processing solution is wrong?

• A. Real-time stream processing is usually achieved through Spark Streaming or F1ink tasks
• B. The data is stored in the memory, without the intervention of a cache system such as Rdis.
• C. Real-time data requires extremely high analysis and processing speed, so the hardware CPU and memory requirements are very high.
• D. The scale of data processing is huge, and the data usually does not land.

A company deployed its own e-commerce system using HUAWEI CLOUD services, and stored daily transaction records in HUAWEI CLOUD 0BS, accumulating day by day, taking up a lot of storage space, and more than a year of transactions Records are hardly used any further. Which of the following ways can tenants change the storage type to minimize costs? (Multiple choice)

• A. by calling the OBS 's SDK will be a year of object storage types into low-access memory.
• B. by calling the OBS 's SDK will be a year of object storage type into archival storage.
• C. Automatically convert objects from one year ago to low-frequency access storage through the lifecycle management configuration of the 0BS service.
• D. Automatically convert objects from one year ago to archive storage through the lifecycle management configuration of the 0BS service.