You need to configure the virtual directories for the Exchange Server organization.
Which three commands should you use? Each correct answer presents part of the solution.

A.
Set-MapiVirtualDirectory -ExternalUrl “https://office-online.contoso.com/hosting/discovery”

B.
Set-ActiveSyncVirtualDirectory -ExternalUrl “https://mail.contoso.com/Microsoft-Server-ActiveSync”

C.
Set-WebServicesVirtualDirectory –ExternalUrl “https://mail.contoso.com/ews/exchange.asmx”

D.
Set-AutodiscoverVirtualDirectory –ExternalUrl “https://autodiscover.contoso.com/autodiscover/
autodiscover.xml”

E.
Set-OwaVirtualDirectory –ExternalUrl “https://mail.contoso.com/owa”

Explanation:
B: Use the Set-ActiveSyncVirtualDirectory cmdlet to modify existing Microsoft Exchange ActiveSync virtual
directories that are used in Internet Information Services (IIS) on Exchange servers.
C: Use the Set-WebServicesVirtualDirectory cmdlet to modify existing Exchange Web Services virtual
directories that are used in Internet Information Services (IIS) on Microsoft Exchange servers.
D: Use the Set-AutodiscoverVirtualDirectory cmdlet to configure Autodiscover virtual directories that are used in
Internet Information Services (IIS) on Exchange servers.
Incorrect Answers:
A: Use the Set-MapiVirtualDirectory cmdlet to modify Messaging Application Programming Interface (MAPI)
virtual directories that are used in Internet Information Services (IIS) on Microsoft Exchange servers. servers. A
MAPI virtual directory is used by supported versions of Microsoft Outlook to connect to mailboxes by using the
MAPIHTTP protocol.
E: Use the Set-OwaVirtualDirectory cmdlet to modify existingOutlook on the web virtual directories that are
used in Internet Information Services (IIS) on Exchange servers.

https://technet.microsoft.com/en-us/library/bb123679(v=exchg.160).aspx
https://technet.microsoft.com/en-us/library/aa998601(v=exchg.160).aspx