Exam MS-220: Troubleshooting Microsoft Exchange Online Practice Test
Exam MS-220 practice focuses on diagnosing Exchange Online mail-flow and mailbox-access problems. The available questions cover issues such as message delivery to unexpected folders, recipient limits, automatic replies, Outlook connectivity, message encryption, mailbox quotas, and message tracing. These scenarios involve distinguishing user-level settings from client, mailbox, and service-side causes.
Exam overview
About the Exam MS-220: Troubleshooting Microsoft Exchange Online Exam
Troubleshooting Exchange Online requires correlating user reports with configuration and diagnostic evidence. Practice scenarios ask you to identify whether a delivery problem relates to Junk Email or inbox rules, determine why a distribution-group message exceeds recipient limits, and verify automatic-reply behavior. Other questions involve distinguishing an Outlook profile or connection issue from mailbox access, checking evidence of modern authentication, and assessing whether a desktop client is offline or disconnected. Mailbox administration also includes investigating recoverable-items limits and checking the settings that affect message encryption. For mail-flow investigations, message tracing helps establish whether a message was delivered, delayed, or failed and where processing changed its status. The central task is to select a relevant first check rather than apply broad changes before isolating the likely cause.
Sample Practice Questions
Review a selection from this exam's published US Practice Tests practice bank.
Messages from one external sender are repeatedly delivered to a user's Junk Email folder, while other mail from that sender's organization is delivered normally. Which user-level setting is most relevant to inspect?
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Correct answer: AA sender-specific junking pattern can result from the recipient's blocked senders list. Inspect that list and related mailbox junk-mail settings before changing broader anti-spam controls.
A user can send ordinary email, but attempts to send to a large distribution group fail with a message indicating the recipient count is too high. Which setting is most relevant to investigate?
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Correct answer: AExchange Online applies recipient limits to messages. Compare the number of recipients with the applicable organization, mailbox, or transport limits and adjust only if the business requirement warrants it.
An administrator is investigating why a mailbox’s automatic replies are not being sent, although the user enabled them in Outlook. What should the administrator verify first?
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Correct answer: AAutomatic replies may be limited by a schedule or by whether they apply inside the organization, outside it, or both. Confirming those settings is a direct first step before investigating broader mail flow.
An administrator is troubleshooting an Outlook connection issue and wants to see whether the affected client is establishing a modern authentication session. Which evidence is most useful to review?
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Correct answer: ASign-in logs provide information about authentication attempts, client applications, status, and applicable policies. Correlate the entries with the user's reported time and client to distinguish authentication failures from later mailbox connectivity issues.
A user can receive new email in Outlook on the web, but an older desktop client shows a mailbox that has not updated. Which check can help determine whether the client is operating in an offline or disconnected state?
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Correct answer: AIf web access shows current mail but a desktop client does not, verify whether the client is connected and synchronizing. A disconnected or offline client can display stale mailbox content even when the service is functioning.
An administrator finds that one user cannot send encrypted messages, while other users can. The organization uses Microsoft Purview Message Encryption. What should be checked first?
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Correct answer: AUse of encryption features depends on the applicable license and configuration. Confirming those prerequisites for the affected user is a focused first step when other users are unaffected.
A user reports that a message they sent to a colleague was delivered, but the recipient says it never appeared in the Inbox. The recipient finds it in another folder. Which setting is most useful to inspect first?
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Correct answer: AInbox rules can automatically move, delete, or redirect messages after delivery. Reviewing the recipient's rules helps explain why a delivered message is not in the Inbox.
How to use this practice test
The free US Practice Tests bank contains 50 questions for MS-220. Each practice session presents up to 20 randomly selected questions, with results shown after the session. Use the results to identify which troubleshooting areas need another focused review, such as Outlook connectivity, mail flow, or mailbox settings.
Preparation tips
- For delivery scenarios, distinguish Junk Email handling and inbox rules from transport or recipient-delivery failures; identify the setting that matches the reported symptom.
- When Outlook differs from Outlook on the web, check client connection state and authentication evidence before treating the problem as a mailbox-wide access issue.
- For outbound failures, compare the recipient-count error with distribution-group size and applicable sending limits; do not assume ordinary one-to-one mail failure.
- For encryption and automatic-reply issues, verify the relevant user or mailbox configuration before changing organization-wide settings.
- Use message tracing to follow a message’s status through Exchange Online, and investigate recoverable-items quota behavior in the mailbox’s recovery settings.