You have an Exchange Server 2016 organization. Some users access their mailbox by using an
Android or an iOS device. You need to prevent the users from using OWA for Devices to access
their mailbox. Which cmdlet should you use?

A.
Set-CASMailbox

B.
Set-MobileMailboxPolicy

C.
Set-OWAVirtualDirectory

D.
Set-OWAMailboxPolicy

Explanation:
https://technet.microsoft.com/en-us/library/bb125264(v=exchg.160).aspx