Accounts with special privileges

Which of the following terms are used to describe accounts with special privileges on various operating systems? (Choose all that apply.) a. User account b. Superuser account c. Megauser account d. Root account e. Administrator account On a system where many users have administrative powers, it is acceptable to have each user log on using their individual accounts for normal activity and then use a shared account for those times when they need to utilize superuser privileges.