MS-102 Practice Question: Manage security and threats by using Microsoft Defender XDR
This MS-102 practice question tests your understanding of manage security and threats by using microsoft defender xdr. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: emailEvents table contains details about emails processed by Microsoft 365.. 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 wants to create a custom detection rule in Microsoft 365 Defender Advanced Hunting that alerts when a user receives a phishing email and clicks a malicious link within 10 minutes. Which two tables must be joined in the KQL query?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
EmailEvents and UrlClickEvents
To detect a user receiving a phishing email and clicking a malicious link within 10 minutes, you need to correlate the email delivery event with the click action. The EmailEvents table contains records of email delivery (including sender, recipient, and subject), while the UrlClickEvents table logs when a user clicks a link in an email, including the URL and timestamp. Joining these two tables on a common identifier (such as NetworkMessageId) allows you to filter for clicks that occur within 10 minutes of email delivery, satisfying the detection requirement.
Key principle: EmailEvents table contains details about emails processed by Microsoft 365.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
EmailEvents and UrlClickEvents
Why this is correct
Correct. EmailEvents for email details, UrlClickEvents for user clicks on URLs.
Related concept
EmailEvents table contains details about emails processed by Microsoft 365.
✓
EmailEvents and DeviceEvents
Why this is correct
DeviceEvents track device-level activities, not email link clicks.
Related concept
EmailEvents table contains details about emails processed by Microsoft 365.
✗
EmailAttachmentInfo and UrlClickEvents
Why it's wrong here
EmailAttachmentInfo handles attachments, not links in the email body.
✗
EmailPostDeliveryEvents and DeviceNetworkEvents
Why it's wrong here
PostDeliveryEvents are for post-delivery actions, and DeviceNetworkEvents for network connections, not direct click tracking.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse UrlClickEvents with DeviceEvents or DeviceNetworkEvents, thinking that network-level logs capture link clicks, but UrlClickEvents is the only table that specifically records user clicks on URLs in Microsoft 365 Defender.
Detailed technical explanation
How to think about this question
Under the hood, the EmailEvents and UrlClickEvents tables are linked by the NetworkMessageId column, which uniquely identifies each email message. The UrlClickEvents table includes a Timestamp column and an ActionType column (e.g., 'ClickAllowed'), enabling precise time-based filtering. In a real-world scenario, a KQL query would use a join with a where clause like `| where UrlClickEvents.Timestamp between (EmailEvents.Timestamp .. (EmailEvents.Timestamp + 10m))` to enforce the 10-minute window, and you might also filter on ThreatTypes in EmailEvents to focus on phishing detections.
KKey Concepts to Remember
EmailEvents table contains details about emails processed by Microsoft 365.
UrlClickEvents table records user clicks on URLs from emails or other sources.
Joining tables in Advanced Hunting allows correlation of distinct security events.
NetworkMessageId is a common field used to link email-related events.
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
EmailEvents table contains details about emails processed by Microsoft 365.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-102 question in full detail.
Review emailEvents table contains details about emails processed by Microsoft 365., then practise related MS-102 questions on the same topic to reinforce the concept.
Manage security and threats by using Microsoft Defender XDR — This question tests Manage security and threats by using Microsoft Defender XDR — EmailEvents table contains details about emails processed by Microsoft 365..
What is the correct answer to this question?
The correct answer is: EmailEvents and UrlClickEvents — To detect a user receiving a phishing email and clicking a malicious link within 10 minutes, you need to correlate the email delivery event with the click action. The EmailEvents table contains records of email delivery (including sender, recipient, and subject), while the UrlClickEvents table logs when a user clicks a link in an email, including the URL and timestamp. Joining these two tables on a common identifier (such as NetworkMessageId) allows you to filter for clicks that occur within 10 minutes of email delivery, satisfying the detection requirement.
What should I do if I get this MS-102 question wrong?
Review emailEvents table contains details about emails processed by Microsoft 365., then practise related MS-102 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
EmailEvents table contains details about emails processed by Microsoft 365.
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