MS-740 Cheat Sheet 2026

The 30 highest-yield MS-740 facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which outbound firewall rule is most critical to enable for Teams media traffic to function correctly? → Allow outbound UDP 3478-3481 to Microsoft IP ranges
2. What does the 'No route found' error in Direct Routing call diagnostics indicate? → No voice routing policy matches the dialed number
3. Which Teams admin center section shows whether a user's Teams license is properly assigned? → Users > Manage users > user detail
4. A Teams meeting transcription is not available after a recorded meeting. What setting must be enabled? → AllowTranscription in Teams meeting policy
5. A compliance officer needs to export Teams chat messages for legal review. Which feature should you use? → Microsoft Purview eDiscovery
6. A Teams channel message containing a credit card number was shared. Which compliance alert would fire? → DLP policy alert for financial data
7. A user cannot start a meeting recording in Teams. Which license is required for cloud recording? → Microsoft 365 E3 or E5
8. What Microsoft Purview feature can automatically classify and label sensitive Teams files? → Auto-labeling policies
9. Which Teams admin center feature allows you to view real-time meeting health during an active session? → Real-time Telemetry in Call Analytics
10. A user's meeting invites are missing the Teams join link. What is the most likely cause? → Outlook add-in for Teams is disabled
11. What is the primary purpose of Microsoft Teams TURN (Traversal Using Relays around NAT) servers? → Relaying media traffic when direct peer-to-peer connection cannot be established
12. Which Teams admin center report shows which users have not adopted Teams after a rollout? → Teams usage report showing inactive users
13. A Teams Calling Plan user reports international calls are failing. What is the first thing to verify? → International calling is enabled in the user's Calling Plan
14. A retention policy is configured for Teams chats, but messages are still visible after the retention period. What should you check? → Retention policy is applied to Teams location and status shows success
15. A user on a wired connection reports poor video quality. After confirming bandwidth is adequate, what should you check next? → Quality of Service (QoS) DSCP markings
16. Which role in the Microsoft 365 admin center can manage Teams compliance features without full Teams admin access? → Compliance Administrator
17. Which feature allows Teams to recognize a user's physical location for emergency calling? → Network topology and emergency location settings
18. What is the primary benefit of implementing Quality of Service (QoS) for Microsoft Teams traffic? → Prioritizing Teams traffic with DSCP markings to ensure consistent quality
19. A Direct Routing SBC shows as inactive in the Teams admin center. What should you check first? → TLS certificate validity on the SBC
20. Which policy controls whether external users can join Teams meetings without being admitted from the lobby? → AutoAdmittedUsers in meeting policy
21. A user reports one-way audio during a Teams call. Which tool should you use first to diagnose the issue? → Teams admin center Call Analytics
22. A user reports that their camera works in other apps but not in Teams. What is the first step? → Check Windows Camera Privacy settings
23. A user in a branch office cannot connect to Teams but can access other websites normally. What should you investigate first? → Proxy server settings and whether Teams URLs are bypassed
24. A user cannot sign into Teams on a new device due to a Conditional Access policy. Which admin center shows the sign-in failure reason? → Azure Active Directory sign-in logs
25. A user's Teams messages need to be placed on Legal Hold. Which feature preserves the content? → eDiscovery hold in Microsoft Purview
26. A Teams Phone user reports that voicemail messages are not being delivered. What should you check? → Cloud Voicemail service settings and Exchange Online integration
27. A user with a Calling Plan cannot make outbound calls. Which Teams admin center section should you check first? → Phone numbers assigned to the user
28. What happens to a Teams meeting recording if the organizer's OneDrive is full? → Recording fails and an error is sent to the organizer
29. What maximum number of attendees does a Teams live event support? → 10,000
30. What is the purpose of the Teams Communications Support Engineer role? → View call analytics for all users and read all data in CQD