HOTSPOT
You have an Exchange Server 2016 organization. The Active directory sites are configured as shown in the
following graphic.
Use the drop-down menus to select the answer choice that completes each statement based on the information
presented in the graphic.
Hot Area:
Answer: 
Explanation:
https://technet.microsoft.com/en-us/library/jj916681(v=exchg.150).aspx
https://technet.microsoft.com/en-us/library/aa996299(v=exchg.150).aspx?f=255&MSPPError=-2147217396
correct as per https://technet.microsoft.com/en-us/library/jj916681(v=exchg.160).aspx
Site 1 is a hub site but is on a higher cost route and won’t be used.
An Active Directory site is never used as a hub site if it isn’t on the least-cost routing path between two other sites.
First correct, but the secund answer is:
Site4
Site 3 route the IP package! The sender and receiver server will communicate diretly!