A. Use Data Pump to transfer the existing data to a new encrypted tablespace
B. Use ALTER TABLE MOVE to transfer the existing data to a new encrypted tablespace
C. Use CREATE TABLE AS SELECT to transfer the existing data to a new encrypted tablespace
D. Enable row movement for each table to be encrypted and then use ALTER TABLESPACE to encrypt the tablespace
E. Encrypt the USER_DATA tablespace using the ALTER TABLESPACE statement so that all the data in the tablespace is automatically encrypted

A. It permanently switches to the low_group consumer group if the session exceeds 10,000 I/O requests or 2,500 MB of data transfer.
B. It performs the first 10000 I/O requests or 2,500 MB of data transfer in the LOW-GROUP consumer group, and then switches to the original group.
C. It switches to the LOW_GROUP consumer group if the session exceeds 10000 I/O requests or 2500 MB of data transfer and returns to the original group after the operation.
D. It switches to the LOW_GROUP consumer group if the session exceeds 10000 I/O requests or 2500MB of data transfer for queries, but not for data manipulation language (DML) operations.