Q. Which four statements are true about profiles? (Choose four.)
A. Profiles can control the use of passwords.
B. Profile assignments do not affect current sessions.
C. All limits of the DEFAULT profile are initially unlimited.
D. Profiles can be assigned to users and roles, but not other profiles.
E. Profiles can ensure that users log off the database when they have left their session idle for a period of time.
Answer: ABCE
OTN:
After a profile has been created, you can assign it to database users. Each user can be assigned only one profile at any given time. If a profile is assigned to a user who already has a profile, the new profile assignment overrides the previously assigned profile. Profile assignments do not affect current sessions. Profiles can be assigned only to users and not to roles or other profiles.
EXP:
Remember, profile cannot be assigned to roles. Thus D is incorrect.