Your on-premises network contains a Microsoft Exchange Server 2019 organization.
You purchase a Microsoft 365 E5 subscription.
You need to integrate the on-premises network and Exchange Online.
What should you do first?

You have a hybrid deployment of Microsoft 365 that contains the users shown in the following table.

You plan to provide access to an on-premises app named App1 by using Azure AD Application Proxy. App1 will be managed by User4.
You need to identify which user can install the Application Proxy connector.
Which user should you identify?

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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You have a Microsoft 365 subscription.
You need to prevent users from accessing your Microsoft SharePoint Online sites unless the users are connected to your on-premises network.
Solution: From the Azure Active Directory admin center, you create a trusted location and a conditional access policy.
Does this meet the goal?

You have a Microsoft 365 subscription. You have a user named User1.
You need to ensure that User1 can place a hold on all mailbox content.
What permission should you assign to User1?

Your company has a Microsoft 365 E3 subscription.
All devices run Windows 10 Pro and are joined to Microsoft Azure Active Directory (Azure AD).
You need to change the edition of Windows 10 to Enterprise the next time users sign in to their computer. The solution must minimize downtime for the users.
What should you use?