Oracle Security in CDBs and PDBs - OCP: Oracle Database 12c Administrator Certified Professional - page 659

19. Is it true that or false that granting privileges to a common user to create objects in any
container is not permitted?
A. True, because common users are for administrative purposes only.
B. True, because local users should be allowed to create objects in only a local
container.
C. False, because common users can be granted privileges across PDBs with the
CONTAINER=ALL clause.
D. None of the above
20. Which of the following SQL statement sequences are invalid? (Choose all that apply.)
A. CREATE ROLE c##mydba IDENTIFIED BY mydba;
CREATE USER c##mydba IDENTIFIED BY c##mydba;
B. CREATE USER c##mydba IDENTIFIED BY mydba;
CREATE ROLE "c##mydba" IDENTIFIED BY mydba;
C. CREATE USER "c##mydba" IDENTIFIED BY mydba;
CREATE ROLE c##mydba IDENTIFIED BY mydba;
D. CREATE USER "c##mydba" IDENTIFIED BY mydba;
CREATE ROLE "c##mydba" IDENTIFIED BY mydba;
E. All of the above