You support a customer who is upgrading from Lync2010

Group Chat to Skype for Business 2015 Persistent Chat. Users are Session Initiation Protocol (SIP) enabled members of a single Active Directory Domain Services (AD DS) domain.

Group Chat clients connect by using a well-known user named ocschat@litwareinc.

com.

The Lookup service registers with the Lync server to receive incoming requests.

Your customers Persistent Chat pool fully qualified domain name (FQDN) is named pchatpool.litwareinc.com.

When users sign out of Skype for Business and then sign in

again by using the Lync 2010 Group Chat client, they are able to access their data without needing to change any configuration.

You need to configure Skype for Business 2015 Persistent Chat to support legacy Group Chat clients.

Which Skype for Business M

anagement Shell commands should you run?

A. New-CsPersistentChatEndpoint -SipAddress sip:ocschat@litwareinc.com -PersistentChatPoolFqdn pchatpool.litware.com

B. $cred1 = Get-Credential 1itwareinc\pilar-$cred2 = Get-Credential 1itwareinc\ocschatTest-CsPers

istentChatMessage -TargetFqdn pchatpool. litwareinc.com -SenderSipAddress -sip:pilar@litwareinc.com- -SenderCredential Scredl -ReceiverSipAddress -sip:ocschat@litwareinc.com- -ReceiverCredential $cred2

C. Set-CsPersistentChatRoom -Identity IT-Presenters @{

Add=-sip:ocschat@litwareinc.com-}

D. New-CsTrustedApplicationEndpoint -Application pchat -TrustedApplicationPoolFqdn pchatpooLlitware.com -SipAddress sip: ocschat@litwareinc.com

Explanation:

References:

https://technet.microsoft.com/en-us/librar

y/jj204901(v=ocs.15).aspx

https://technet.microsoft.com/en-us/library/jj204811.aspx