MS-102 Microsoft 365 Deployment & Migration 3 — Questions and Answers
Question 1: An organization is implementing a staged Exchange migration. What happens to email sent to a user whose mailbox has NOT yet been migrated to Exchange Online?
- Email is queued in Exchange Online and delivered after migration
- Email is delivered to the on-premises mailbox via MX record routing (Correct answer)
- Email bounces back to the sender
- Email is stored in Exchange Online archive
Correct answer: Email is delivered to the on-premises mailbox via MX record routing
During staged migration, the MX record still points to on-premises, so mail for non-migrated users continues to route to and be delivered to the on-premises mailbox.
Question 2: Which Azure AD Connect sync feature allows an administrator to write specific attributes back from Azure AD to on-premises Active Directory?
- Password hash sync
- Writeback (Correct answer)
- Pass-through authentication
- Seamless SSO
Correct answer: Writeback
Writeback features (such as group writeback, device writeback, and password writeback) synchronize selected attributes from Azure AD back to the on-premises directory.
Question 3: When deploying Microsoft 365 Apps for enterprise, an administrator wants to use the Office Deployment Tool (ODT). What file format does the ODT use for its configuration?
- JSON
- XML (Correct answer)
- YAML
- INI
Correct answer: XML
The Office Deployment Tool uses an XML configuration file (configuration.xml) to define installation settings, update channels, and excluded applications.
Question 4: A company needs to migrate 10,000 mailboxes from on-premises Exchange to Exchange Online. Which migration method is most appropriate?
- Cutover migration
- Staged migration
- IMAP migration
- Hybrid migration with Exchange Hybrid (Correct answer)
Correct answer: Hybrid migration with Exchange Hybrid
For large organizations with thousands of mailboxes, a hybrid migration using Exchange Hybrid provides the most control, flexibility, and minimal disruption.
Question 5: What is the role of the Microsoft FastTrack service in Microsoft 365 deployments?
- A paid consulting service for custom development
- A free benefit for eligible Microsoft 365 subscriptions providing deployment guidance and remote assistance (Correct answer)
- A third-party migration accelerator tool
- An automated deployment script generator
Correct answer: A free benefit for eligible Microsoft 365 subscriptions providing deployment guidance and remote assistance
FastTrack is a free benefit included with eligible Microsoft 365 subscriptions that provides remote guidance, best practices, and tools to help with deployment.
Question 6: During Microsoft 365 deployment, an administrator needs to configure DNS for Exchange Online. Which DNS record type is responsible for directing inbound email to Exchange Online?
- CNAME
- TXT
- MX (Correct answer)
- SRV
Correct answer: MX
The MX (Mail Exchanger) record must be updated to point to Exchange Online Protection so that inbound email is routed to Exchange Online.
Question 7: An administrator is using the Microsoft 365 admin center to assign licenses during a migration. A user reports they cannot access Teams despite being assigned a Microsoft 365 E3 license. What should the administrator check first?
- Whether the user's password has expired
- Whether the Teams service plan within the license is enabled for the user (Correct answer)
- Whether the user has a valid MX record
- Whether the user's device is Azure AD joined
Correct answer: Whether the Teams service plan within the license is enabled for the user
Within a Microsoft 365 license, individual service plans (like Teams) can be toggled on or off; the administrator should verify Teams is enabled in the user's license assignment.
MS-102 Microsoft 365 Deployment & Migration 3
An organization is implementing a staged Exchange migration.
What happens to email sent to a user whose mailbox has NOT yet been migrated to Exchange Online?