You have a Microsoft Exchange Server 2019 organization named contoso.com and an Exchange Online tenant.
You plan to implement a hybrid deployment.
You have the certificates shown in the following table.

You need to identify which certificates can be assigned in the Microsoft Office 365 Exchange Hybrid Configuration wizard.
Which certificates should you identify?

You need to resolve the email delivery delay issue.
What should you do?

You need to recommend a solution to retain the items in the public folders. The solution must support the planned changes.
What should you recommend?

You run the Get-WebServicesVirtualDirectory cmdlet as shown in the following exhibit.

Use the drop-down menus to select the answer choice that answers each question based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.

You have a Microsoft Exchange Online tenant that uses a third-party email gateway device.
You discover that inbound email messages are delayed.
The gateway device receives the following error message when sending email to the tenant.
4.7.500 Server busy, please try again later.
You need to prevent inbound email delays.
What should you configure?