Final answer:
The 'invalid_fields' rule is configured to apply to the Account, Contact, and Lead objects, whereas the 'invalid_user_permissions' rule targets files with the extensions '.permissionset' and '.profile', which are linked to user permissions in software systems.
Step-by-step explanation:
In the context given, the rule 'invalid_fields' applies to the Account, Contact, and Lead objects. This means that it will only affect these specific objects within a system, like a customer relationship management (CRM) platform, where objects can represent different types of information.
For the 'invalid_user_permissions' rule, it mentions using extensions. In computing, extensions often refer to file types. Therefore, this rule will apply to any files named with the extensions '.permissionset' or '.profile'. These file types are typically associated with user permissions in software systems - a '.permissionset' file would define a set of permissions for a user, and a '.profile' file could contain specific access information for a user's account.