Your company has a hybrid deployment of Office 365. You need to verify whether free/busy information sharing with external users is configured.
Which Windows PowerShell cmdlet should you use?

Your company has 100 user mailboxes.
The company purchases a subscription to Office 365 for professionals and small businesses.
You need to enable the Litigation Hold feature for each mailbox.
What should you do first?

Your company has a subscription to Office 365 for midsize business and enterprises. The company uses Microsoft Lync Online.
You need to open ports on the network firewall to enable all of the features of Lync Online.
Which port or ports should you open? (Each correct answer presents part of the solution. Choose all that apply.)

Your company has an Office 365 subscription.
You need to add the label “External” to the subject line of each email message received by your organization from an external sender.
What should you do?

Your company has a hybrid deployment Office 365. You create a user in Office 365. The next day, you discover that the new user account fails to appear in the
Microsoft Exchange Server on- premises global address list (GAL).
You need to ensure that the user has a mailbox and appears in the Exchange on- premises GAL and the Office 365 GAL.
What should you do?

Your company has an Office 365 subscription. The network contains an Active Directory domain. You configure single sign-on for all users.
You need to verify that single sign-on functions for the users who access Office 365 from the Internet.
What should you run?

Your company has a hybrid deployment of Office 365. All mailboxes are hosted on Office 365. All users access their Office 365 mailbox by using a user account
that is hosted on-premises. You need to delete a user account and its associated mailbox.
Which tool should you use?

You create an Office 365 tenant. You assign administrative roles to other users. You hire a new user named User2.
User2 must be able to change passwords for other users.
You need to assign an administrative role to User2.
Which role should you assign?

Contoso, Ltd. plans to use Office 365 for email services and Lync Online. Contoso has four unique domain names.
You need to migrate domain names to Office 365.
Which two domain names you could migrate? Each correct answer presents part of the solution.

A company has an Office 365 tenant and uses Exchange Online and Skype for Business Online.
User1 is scheduling a Skype meeting with User2.
User 1 is not able to see availability information for User2.
You need to troubleshoot the issue.
What should you use?