20+ practice questions focused on Mitigate threats using Microsoft Defender XDR — one of the most tested topics on the Microsoft Security Operations Analyst SC-200 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Mitigate threats using Microsoft Defender XDR PracticeA user reports receiving a suspicious email that bypassed the spam filter. An analyst opens the Microsoft 365 Defender portal to investigate. Which component provides a detailed entity view of the email including delivery actions, phish simulation details, and campaign information?
Explanation: Microsoft Defender for Office 365's Threat Explorer (now part of the unified investigation experience) provides a detailed entity view of an email, including delivery actions (e.g., delivered to Junk, blocked, or allowed), whether the email was part of a phishing simulation, and the associated campaign information. This tool is specifically designed for deep email threat investigation within the Defender for Office 365 portal, leveraging telemetry from Exchange Online Protection (EOP) and Defender for Office 365.
During an incident investigation, an analyst notices a compromised user account that was used to access sensitive data from SharePoint Online. Which Microsoft 365 Defender workload would provide the most relevant alerts for suspicious file access patterns?
Explanation: Microsoft Defender for Cloud Apps (Option C) is the correct workload because it provides visibility into cloud application usage, including SharePoint Online, and can generate alerts for suspicious file access patterns such as mass download, unusual file sharing, or access from anomalous locations. It uses behavioral analytics and anomaly detection to identify compromised accounts accessing sensitive data in SaaS applications like SharePoint.
A security analyst is writing a Kusto Query Language (KQL) advanced hunting query in Microsoft 365 Defender to detect lateral movement using Remote Desktop Protocol (RDP). Which table should the analyst join with the DeviceNetworkEvents table to identify processes initiating outgoing RDP connections?
Explanation: The DeviceNetworkEvents table logs network connections, including outgoing RDP traffic (port 3389). To identify which process initiated a specific outgoing RDP connection, you must join with the DeviceProcessEvents table on DeviceId and Timestamp (or ProcessId), because DeviceProcessEvents contains the process creation details (e.g., mstsc.exe) that launched the network connection. This join reveals the parent process responsible for the lateral movement attempt.
During an incident investigation in Microsoft 365 Defender, an analyst examines an email that was reported as phishing. The analyst opens the email entity page and looks at the 'Detection details' section. Which piece of information would the analyst find there?
Explanation: Option D is correct because the 'Detection details' section on the email entity page in Microsoft 365 Defender specifically shows the detection technology used (e.g., Advanced ML, Reputation, Bulk) and whether the email was part of a phishing simulation or a campaign. This information helps analysts understand how the email was identified as malicious and its context within broader threat activity.
An organization uses Microsoft Defender for Office 365. A security analyst wants to configure automated investigation and response (AIR) for email threats. When a user reports a phishing email using the Report Message add-in, which automated action can be triggered by an AIR playbook?
Explanation: When a user reports a phishing email via the Report Message add-in, the automated investigation and response (AIR) playbook in Microsoft Defender for Office 365 can automatically soft-delete the email from the user's mailbox and from all other mailboxes that received the same message. This action is part of the built-in remediation steps that AIR can take after confirming the threat, leveraging the email entity's hash or message ID to perform tenant-wide removal via the threat protection pipeline.
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2. Review every explanation
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4. Reach 80% consistently
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