HOTSPOT
You have an Exchange Server organization that contains the servers configured as shown in the
following table.

You need to configure the namespace to ensure that users can connect to Outlook Web Access from
the Internet if a single site is unavailable.
What command should you run on EX1 and EX2? To answer, select the appropriate options in the
answer area.

Answer:

Explanation:
Set-OWAVirtualDirectory -FailbackURL
Set-OwaVirtualDirectory
https://technet.microsoft.com/en-us/library/bb123515(v=exchg.150).aspx