Which of the following is not a capability of the "Cloud DBA function of a Huawei Cloud RDS instance?"

When users use HUAWEI CLOUD DRS to migrate MySQL database to RDS for MySQL, which of the following network types can be chose? (Multiple choice)

Monitoring data aggregation refers to the process in which cloud monitoring calculates the maximum, minimum, average, sum, or variance value of the original sampling index mining in a fixed period and persists the results. How long is this calculation period?

Which of the following scenarios are the Spark components in the Huawei Cloud MRS service applicable to? (Multiple choice)

If you use the Huawei cloud ELB instance, and created 7-layer protocol listeners based on htpt https, which field of head did back-end server go through to get real IP address of visitors?