A.Space from deleted rows is physically released back to the OS

B.Should be run only when disk space usage nears a threshold

C.Improves all operations based on the table after execution

D.Allows concurrent operations during execution

A.8

B.11

C.12

D.7

A.Specify optimization strategy

B.Specify column names

C.Specify index

D.Specify join tables

A.Thousands of nodes in a single pool

B.Linear scaling of capacity and performance

C.Cross-region replication, cross-AZ disaster recovery

D.EB-level capacity, billions of objects per device

A.True

B.False