The answer is the EmailEvents table. This is the correct advanced hunting table in Microsoft 365 Defender because it captures email-level activities, including whether an attachment was opened or viewed by the recipient, with specific action types like 'Email open' and 'Attachment open' that directly reveal post-delivery interaction. On the SC-200 exam, this scenario tests your ability to distinguish between tables focused on email flow (EmailEvents) versus those tracking file or device-level actions, such as DeviceFileEvents or EmailAttachmentInfo. A common trap is confusing EmailAttachmentInfo, which only logs metadata about the attachment itself, with EmailEvents, which records the actual user actions like download or view. For the investigation of potential data exfiltration via an attachment, querying EmailEvents for the specific recipient and filtering on action types like 'Attachment open' provides the evidence needed. Memory tip: think of EmailEvents as the "action log" for what happened to the email after it arrived, while EmailAttachmentInfo is just the "cargo manifest."
SC-200 Mitigate threats using Microsoft Defender XDR Practice Question
This SC-200 practice question tests your understanding of mitigate threats using microsoft defender xdr. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A security analyst is investigating a potential data exfiltration incident in Microsoft 365 Defender. They have identified a suspicious email sent to an external recipient containing an attachment. They want to know if the attachment has been opened and if any sensitive data was accessed. Which advanced hunting table should the analyst query to find email attachment activities, such as file download or view?
Why wrong: DeviceFileEvents tracks file operations on devices, not email attachment actions directly.
B
EmailEvents
EmailEvents includes columns for action type, such as EmailAttachmentOpened or EmailAttachmentDownloaded, making it the correct table for this investigation.
C
EmailAttachmentInfo
Why wrong: EmailAttachmentInfo provides metadata about attachments (e.g., file name, size) but does not indicate whether the attachment was opened.
D
UrlClickEvents
Why wrong: UrlClickEvents records clicks on URLs, not attachment actions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
EmailEvents
B is correct because EmailEvents is the advanced hunting table in Microsoft 365 Defender that captures email-level activities, including whether an attachment was opened or viewed by the recipient. This table contains actions such as 'Email open' and 'Attachment open', which directly answer the analyst's question about attachment access and potential data exfiltration.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
DeviceFileEvents
Why it's wrong here
DeviceFileEvents tracks file operations on devices, not email attachment actions directly.
✓
EmailEvents
Why this is correct
EmailEvents includes columns for action type, such as EmailAttachmentOpened or EmailAttachmentDownloaded, making it the correct table for this investigation.
Related concept
Read the scenario before looking for a memorised answer.
✗
EmailAttachmentInfo
Why it's wrong here
EmailAttachmentInfo provides metadata about attachments (e.g., file name, size) but does not indicate whether the attachment was opened.
✗
UrlClickEvents
Why it's wrong here
UrlClickEvents records clicks on URLs, not attachment actions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse EmailAttachmentInfo (which only provides static metadata) with EmailEvents (which includes user actions), leading them to select the wrong table for activity tracking.
Detailed technical explanation
How to think about this question
EmailEvents in Advanced Hunting includes the 'ActionType' column with values like 'EmailOpen' and 'AttachmentOpen', which are triggered by user interaction in Outlook or webmail. This table is populated via Exchange Online Protection and Microsoft 365 Defender telemetry, capturing the recipient's action on the attachment, such as opening a file in the browser or downloading it. In a real-world scenario, an analyst can join EmailEvents with EmailAttachmentInfo on the 'NetworkMessageId' to correlate the specific attachment with the open event.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-200 question in full detail.
Mitigate threats using Microsoft Defender XDR — This question tests Mitigate threats using Microsoft Defender XDR — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: EmailEvents — B is correct because EmailEvents is the advanced hunting table in Microsoft 365 Defender that captures email-level activities, including whether an attachment was opened or viewed by the recipient. This table contains actions such as 'Email open' and 'Attachment open', which directly answer the analyst's question about attachment access and potential data exfiltration.
What should I do if I get this SC-200 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A security analyst is reviewing phishing emails in Microsoft 365 Defender and wants to identify all messages that were blocked by an anti-phish policy before delivery. The analyst plans to use advanced hunting. Which table column indicates whether an email was blocked as phishing?
easy
✓ A.EmailEvents table, the 'DeliveryAction' column
B.EmailPostDeliveryEvents table, the 'Action' column
C.EmailAttachmentInfo table, the 'FileType' column
D.EmailUrlInfo table, the 'Url' column
Why A: The EmailEvents table records actions taken on emails before delivery, including whether a message was blocked by anti-phish policies. The 'DeliveryAction' column specifically indicates the final disposition, such as 'Blocked' for phishing. This makes it the correct source for identifying pre-delivery phishing blocks in advanced hunting.
Variation 2. A security analyst in Microsoft 365 Defender is investigating an incident that involves a malicious email attachment. Which advanced hunting table should the analyst use to find information about the email including sender, recipient, and subject?
easy
✓ A.EmailEvents
B.EmailAttachmentInfo
C.EmailUrlInfo
D.IdentityLogonEvents
Why A: The EmailEvents table in Microsoft 365 Defender advanced hunting contains the core email metadata, including sender (SenderFromAddress), recipient (RecipientEmailAddress), and subject (Subject). This table records events such as email delivery, blocking, and filtering actions, making it the primary source for investigating email-related incidents. The other tables focus on specific components like attachments or URLs, not the full email envelope details.
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Question Discussion
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