You are the Office 365 administrator for a company.
You must modify the configuration of the Office 365 tenant to allow users to instant message users only with
partner companies.
You need to configure Office 365.
What should you use?
A.
the Windows PowerShellSet-CsPersistentChatPolicycmdlet
B.
the Microsoft Exchange admin center
C.
the Office 365 SharePoint admin center
D.
the Windows PowerShellSet-CsExternalAccessPolicycmdlet
Correct!
Enables you to modify the properties of an existing external access policy. External access policies determine whether or not your users can: 1) communicate with users who have Session Initiation Protocol (SIP) accounts with a federated organization; 2) communicate with users who have SIP accounts with a public instant messaging (IM) provider such as MSN and 3) access Skype for Business Server over the Internet, without having to log on to your internal network.
https://docs.microsoft.com/en-us/powershell/module/skype/set-csexternalaccesspolicy?view=skype-ps
The Persistent Chat service (which replaces the Group Chat service used in Microsoft Lync Server 2010) provides organizations with messaging and collaboration capabilities similar to those found in Internet discussion forums: users can exchange messages in real-time, yet can also revisit and restart those conversations at any time.