The user has applied for separate Huawei Cloud accounts for the two departments. VPC1 (CIDR.192.168.0.0/16) and 2 subnets: SubnetA (192.168.1.0/) are created in account A.24), SubnetB (192.168.10.0/24), account B created VPC2 (CIDR: 192.168.0.0/16) and 2 subnets:
SubnetX (192.168.10.0/24), SubnetY (192.168.100.0/24): Due to business needs. SubnetA and SubnetX need network interoperability. The user understands that Huawei Cloud provides peer- to-peer connection capabilities and configures it according to the known manual, but it has not been able to achieve the goal.
Which of the following is the most likely reason?

When users use Huawei Cloud DDM distributed database middleware, they need to configure corresponding strategies according to their own business needs. Which of the following configuration methods of the database read strategy in Huawei Cloud DDM is wrong?

When users use the Huawei Cloud RDS backup migration function to migrate Redis data, which of the following Redis backup file extensions are supported? (Multiple choice)

When users implement the migration project, which of the following measures can reduce the risk of data inconsistency? (Multiple choice)

In the big data offline processing scheme architecture, the batch processing engine is used to achieve high-performance offline batch processing job operation. Which of the following HUAWEI CLOUD big data offline batch processing engines can be used to process SQL jobs?