Explanation
The following statements are true for the Financial Services Cloud Person Account Data Model:
The Person Account is a virtual object displaying data from Accounts and Contacts objects. It represents all aspects of the person and includes data such as date of birth or tax ID number. You can use Person Accounts to store information about individual people by combining certain Account and Contact fields into a single record.
The Person Account model uses the standard Account object to hold all of the details about a person.
The Account object has been extended with custom fields and a Person Account Record Type. You can use Person Accounts to simplify your data model and reduce the number of records you need to manage.

Explanation
To prevent users from accidentally creating more than one event of such an event type, the Admin should create a validation rule that will stop the user if they attempt to add multiple one-time events. A validation rule is a rule that verifies that the data a user enters in a record meets the standards you specify before the user can save the record. By creating a validation rule, the Admin can ensure that only one event of a certain type can be created for each contact.

Explanation
Referrals Rollups is a feature that enables users to see all the referrals for the members of a group, such as a branch or a team. It also allows users to filter referrals by status, priority, or owner.

Explanation
To integrate with an external system, Salesforce needs to have objects and fields that can store the data that will be sent from the external system via an API. These objects and fields should match the data structure and format of the external system as much as possible. Additionally, Salesforce needs to have an integration user and an integration profile that can enable the connection between Salesforce and the external system. The integration user is a dedicated user account that has access to the API and can perform data operations on behalf of other users. The integration profile is a custom profile that defines the permissions and settings for the integration user.

Explanation
Hank can see Action Plan Tasks in two places:
On the related list of the Account page layout, where he can view all the tasks associated with an account and their status, due date, owner, and priority4.
On the standard Salesforce task list, where he can view all the tasks assigned to him across different accounts and filter them by various criteria.