HOTSPOT
You have an Exchange Server 2013 organization that contains two servers named EX1 and EX2. Both
servers are in the same Active Directory site.
You run Get-TransportConfig | fi “shadow” and you receive the following output.
Use the drop-down menus to select the answer choice that completes each statement.
Answer: 
Explanation:
Target 1: ShadowHeartFrequency is 2 minutes and MaxRetriesForLocalSiteShadow is 2.
Shadow redundancy
https://technet.microsoft.com/en-us/library/dd351027(v=exchg.150).aspx