Lisa is setting up accounts for her company. She wants to set up accounts for the Oracle database server. Which of the following would be the BEST type of account to assign to the database service?

A service account is the most appropriate in this case. Service accounts are given the least privileges the service needs and are used by the service, without the need for a human user. Although you could assign a user account, it is not as good a solution as using a service account. A guest account would never be a good idea for a service. Guest accounts are typically too limited. It’s common practice to disable default accounts such as the Guest account. An admin account would give too many privileges to the service and violate the principle of least privileges.