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Question 19 - MS-203 discussion
You have a hybrid deployment between a Microsoft Exchange Online tenant and on-premises Exchange Server 2019 organization. The on-premises organization contains several Exchange Server 2019 servers. You discover that delivery fails for all email messages sent from the on-premises organization to Microsoft 365. You discover that the certificate for an on-premises Exchange server expired.
You need to resolve the issue as quickly possible. The solution must minimize administrative effort. What should you do on the on-premises Exchange server?
Create a new self-signed certificate.
Generate a certificate renewal request.
Generate a certificate request.
Add the certificate for a new root certification authority (CA).
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