Câu 43: MS-203: Microsoft 365 Messaging

You have a hybrid deployment between a Microsoft Exchange Online tenant and an 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?

1. A. Create a new self-signed certificate.
2. B. Generate a certificate renewal request.
3. C. Generate a certificate request. — đáp án hiện tại
4. D. Add the certificate for a new root certification authority (CA).