You support a customer whose network environment includes Microsoft Lync Server 2010 Group Chat. You plan to deploy Skype for Business Server 2015 Persistent Chat. You need to ensure that users who access Group Chat will have access to their chat history in Persistent Chat. Which two actions should you perform? Each correct answer presents part of the solution.
A. Run the following Skype for Business Management Shell cmdlet: Set-CsPersistentChatActiveServer
B. Back up the mgc from the Group Chat server and restore it to the Persistent Chat server.
C. Ensure that legacy clients can connect to the new Persistent Chat pool. Shut down Persistent Chat services, and then run the following Skype for Business Management Shell cmdlet: Import-CsPersistentChatData
D. Deploy Skype for Business Server 2015 and then deploy a Persistent Chat pool. Shut down Lync Server 2010 Group Chat services, and then run the following Skype for Business Management Shell cmdlet: Export-CsPersistentChatData