Answers
- B: Hybrid federated search.
Federated search allows you to maintain separate indices for SharePoint Online and SharePoint Server content, but provides an interface for cloud users to be able to query both search indices and return results in the same browser: https://learn.microsoft.com/en-us/sharepoint/hybrid/hybrid-search-in-sharepoint.
- A: 25.
Exchange Online requires port 25 to be open between Exchange Online Protection and the on-premises Exchange hybrid transport endpoints: https://learn.microsoft.com/en-us/exchange/hybrid-deployment-prerequisites.
- B: An auto attendant.
An auto attendant provides IVR features, allowing users to navigate options: https://learn.microsoft.com/en-us/microsoftteams/plan-auto-attendant-call-queue.
- A: The Azure AD portal.
Of the options listed, dynamic administrative units can only be configured in the Azure AD portal: https://learn.microsoft.com/en-us/azure/active-directory/roles/admin...
