HOTSPOT
You run the Get-WebServicesVirtualDirectory cmdlet as shown in the following exhibit.
Use the drop-down menus to select the answer choice that answers each question based on the information presented in the graphic. NOTE: Each correct selection is worth one point.
Answer: 
Explanation:
Box 1:
The MRS proxy endpoint needs to be enabled on all mailbox servers.
Box 2:
SMTP is used to deliver email between on-premise users and Exchange Online users. This requires a third-party (public CA) certificate.