A.Improve the efficiency of DDL operations.

B.Improve the query efficiency SELECT statements.

C.Improve the efficiency of DML operations such as UPDATE.

D.Reduce invalid data scanning.

A.AccessKey Secrets for RAM sub-accounts can be queried at any time on the Console Interface after creation

B.AK can refer to both the AccessKey ID and the AccessKey secret

C.An AccessKey ID and AccessKey Secret cannot be used separately

D.You can use AK to construct an API request and the corresponding resources can be manipulated if your request successfully..

A.IntranetAccess

B.Object Policy

C.Bucket Policy

D.ACL

E.STS authorization

F.RAM Policy

G.Dynamic blacklist

A.XML

B.TABLE

C.YAML

D.JSON

A.Migrate the ROS database to HBase to save the cache layer

B.Implement ApsaraDB for Redis in Standard Mode

C.Install Redis on an ECS instance

D.Implement ApsaraDB for Redis in Cluster Mode