What does setting a minimum password age restrict?

Setting a minimum password age restricts how often a user can change their password. This means that after a password is set, the user cannot change it for a specified minimum period. The primary purpose of this setting is to prevent users from rapidly changing their passwords in order to circumvent any password history policies that require them to use a new password from a set of previously used passwords. By imposing a minimum age, organizations can enhance security by ensuring that users maintain a password for a certain length of time before they are allowed to change it again. This reduces the opportunities for users to exploit password policies to their advantage.

The other options incorrectly relate to what minimum password age affects. For example, requests for a password reset are managed through different policies and mechanisms, while logging on and setting expiration more broadly pertains to the overall security policies rather than just the minimum age requirement.