Which two on-premises virtual directories should be accessible to Exchange Online services?

You have a Microsoft Exchange Server 2019 organization.

You plan to purchase a Microsoft 365 E5 subscription and create a hybrid deployment.

You are evaluating the security requirements for communication between the on-premises and Exchange Online.

You need to ensure that Exchange Online services can access the necessary on-premises virtual directories.

Which two on-premises virtual directories should be accessible to Exchange Online services? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.
A . Rpc
B . EWS
C . PowerShell
D . ecp
E . mapi
F . Autodiscover

View Answer

Answer: E,F

Explanation:

References: https://docs.microsoft.com/en-us/office365/enterprise/configure-exchange-server-for-hybrid­modernauthentication