Your network contains one Active Directory domain named contoso.com. The forest functional level
is Windows Server 2012. All servers run Windows Server 2012 R2. All client computers run Windows
8.1.
The domain contains 10 domain controllers and a read-only domain controller (RODC) named
RODC01. All domain controllers and RODCs are hosted on a Hyper-V host that runs Windows Server
2012 R2.
You need to identify whether deleted objects can be recovered from the Active Directory Recycle
Bin.
Which cmdlet should you use?

A.
Get-ADGroupMember

B.
Get-ADDomainControllerPasswordReplicationPolicy

C.
Get-ADDomainControllerPasswordReplicationPolicyUsage

D.
Get-ADDomain

E.
Get-ADOptionalFeature

F.
Get-ADAccountAuthorizationGroup

Explanation:
The Get-ADOptionalFeature cmdlet gets an optional feature or performs a search to retrieve
multiple optional features from an Active Directory.
Example: Get-ADOptionalFeature ‘Recycle Bin Feature’
Get the optional feature with the name ‘Recycle Bin Feature’.

Get-ADOptionalFeature
https://technet.microsoft.com/en-us/library/ee617218.aspx