OCA OCP Oracle Certification Exam Braindumps

View the Exhibit exhibit1 to examine the series of SQL commands. View the Exhibit exhibit2 to examine the plans available in the SQL plan baseline. The baseline in the first row of the Exhibit is created when OPTIMIZER_MODE was set to FIRST_ROWS. Which statement is true if the SQL query in exhibit1 is executed again when the value of OPTIMIZER_MODE is set to FIRST_ROWS?

A.The optimizer uses a new plan because none of the plans in the exhibit2 are fixed plans.
B.The optimizer uses the plan in the second row of the exhibit2 because it is an accepted plan.
C.The optimizer uses the plan in the first row of the exhibit2 because it is the latest generated plan.
D.The optimizer uses the plan in the first row of the exhibit2 because OPTIMIZER_MODE was set to FIRST_ROW during its creation.
Correct:B

Which statement describes the effect of table redefinition on the triggers attached to the table?
A.All triggers on the table remain valid.
B.All triggers on the table are invalidated and are automatically revalidated with the next DML execution on the table.
C.All triggers on the table are invalidated and must be manually recompiled before the next DML execution on the table.
D.Only triggers that are affected by the changes to the structure of the table are invalidated and automatically revalidated with the next DML execution on the table.
Correct:B

USER_DATA is a nonencrypted tablespace that contains a set of tables with data. You want to convert all existing data in the USER_DATA tablespace and the new data into the encrypted format. Which methods would you use to achieve this? (Choose all that apply.)
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.
Correct:A B C