MS-203 - Microsoft 365 Messaging Hybrid Configuration and Migration Questions and Answers

Question 1

An organization is preparing for a remote move migration to Exchange Online.
For the migration to succeed, Exchange Online needs to connect to an endpoint on the on-premises Exchange servers to pull mailbox data.
Which service must be enabled on the on-premises Exchange Client Access servers to facilitate this?

Accepted Answer

The Mailbox Replication Service (MRS) Proxy

Answer

The Autodiscover Publishing Service

Answer

The Unified Messaging Call Router

Answer

The POP3 Backend Service

Question 2

A messaging administrator has synced a migration batch of 50 mailboxes to Exchange Online. The status for the batch is 'Synced'. To finalize the migration and cut over the mailboxes so that users connect to their new Exchange Online mailbox, which PowerShell cmdlet must be run?

Accepted Answer

Complete-MigrationBatch

Answer

Start-MigrationBatch

Answer

Set-MigrationBatch -Finalize

Answer

Resume-MigrationBatch

Question 3

Which of the following is the primary purpose of the 'Organization Relationship' that is created by the Hybrid Configuration Wizard (HCW)?

Accepted Answer

To establish a trust that enables cross-premises free/busy lookups, calendar sharing, and MailTips.

Answer

To synchronize directory objects from on-premises Active Directory to Microsoft Entra ID.

Answer

To configure Send and Receive connectors for mail flow between on-premises and Exchange Online.

Answer

To enable single sign-on (SSO) for users accessing both on-premises and cloud resources.

Question 4

An administrator is running the Hybrid Configuration Wizard (HCW) to connect their on-premises Exchange organization to Exchange Online. They need to decide between 'Classic' and 'Modern' hybrid topology. What is the key advantage of choosing Modern Hybrid?

Accepted Answer

It does not require any inbound network connections from the internet to the on-premises Exchange servers.

Answer

It supports integration with third-party identity providers.

Answer

It provides more granular control over mail flow routing.

Answer

It is the only option that supports public folder migration.

Question 5

After running the Hybrid Configuration Wizard, a user with an on-premises mailbox reports they cannot see the free/busy information for a user whose mailbox is in Exchange Online. An administrator needs to verify the external connectivity for the on-premises services required for hybrid features. Which tool is most appropriate for this task?

Accepted Answer

Microsoft Remote Connectivity Analyzer (ExRCA)

Answer

Azure AD Connect Health portal

Answer

The `Test-NetConnection` PowerShell cmdlet

Answer

Exchange Admin Center Message Trace

Question 6

An organization with an on-premises Exchange Server 2013 environment wants to configure a hybrid deployment to migrate mailboxes to Microsoft 365. According to Microsoft's prerequisites, what is the minimum required update level for the Exchange 2013 servers?

Accepted Answer

The latest Cumulative Update (CU)

Answer

Service Pack 1 (SP1)

Answer

Any Cumulative Update released within the last two years

Answer

Rollup Update 8