- A
DeviceNetworkEvents and IPReputation
DeviceNetworkEvents records network connections including remote IPs. IPReputation provides Microsoft's threat intelligence score for IP addresses, allowing the rule to filter for connections to flagged IPs. These tables can be joined on the RemoteIP column.
- B
DeviceProcessEvents and AlertInfo
Why wrong: DeviceProcessEvents contains process creation events, not network connections. AlertInfo contains alert metadata, not IP reputation data. This pair does not provide the required network connection or threat intelligence data.
- C
DeviceFileEvents and DeviceIPInfo
Why wrong: DeviceFileEvents tracks file operations, not network connections. DeviceIPInfo is not a standard advanced hunting table; the correct table for IP reputation is IPReputation. This pair is irrelevant for detecting network communications.
- D
EmailEvents and DeviceNetworkEvents
Why wrong: EmailEvents covers email delivery, not network connections. While DeviceNetworkEvents is correct, joining it with EmailEvents does not provide threat intelligence on the IP. The rule would not know if the IP is flagged as malicious.
Quick Answer
The correct tables to join are DeviceNetworkEvents and IPReputation. This join is necessary because the custom detection rule must correlate actual device network activity—logged in DeviceNetworkEvents—with Microsoft’s threat intelligence classifications for IP addresses, stored in the IPReputation table. By joining these tables on the destination IP address, the KQL query can filter for communications where the IP is flagged as potentially malicious, then aggregate by device to count occurrences within a 24-hour window and trigger an incident when that count exceeds five. On the MS-102 exam, this scenario tests your ability to select the right advanced hunting tables for a threat intelligence IP reputation join, a common task in building custom detections. A frequent trap is choosing DeviceLogonEvents instead, which logs authentication events, not network connections. Memory tip: think “Network meets Reputation”—the device’s network logs must link directly to the IP’s threat score to catch malicious outbound traffic.
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: deviceNetworkEvents records all network connections from devices.. 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 that triggers when a device communicates with a new, unclassified IP address that has been flagged by Microsoft threat intelligence as potentially malicious. The rule should run every hour and create an incident if more than 5 such communications from the same device occur within a 24-hour window. Which advanced hunting tables should be joined in the KQL query for this rule?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
DeviceNetworkEvents and IPReputation
Option A is correct because the rule requires detecting network communications to potentially malicious IP addresses, which involves joining `DeviceNetworkEvents` (which logs network connections from devices) with `IPReputation` (which contains Microsoft's threat intelligence classifications for IP addresses). This join allows the query to filter for communications where the destination IP is flagged as malicious and then aggregate by device to trigger an incident when the count exceeds 5 within a 24-hour window.
Key principle: DeviceNetworkEvents records all network connections from devices.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
DeviceNetworkEvents and IPReputation
Why this is correct
DeviceNetworkEvents records network connections including remote IPs. IPReputation provides Microsoft's threat intelligence score for IP addresses, allowing the rule to filter for connections to flagged IPs. These tables can be joined on the RemoteIP column.
Related concept
DeviceNetworkEvents records all network connections from devices.
- ✗
DeviceProcessEvents and AlertInfo
Why it's wrong here
DeviceProcessEvents contains process creation events, not network connections. AlertInfo contains alert metadata, not IP reputation data. This pair does not provide the required network connection or threat intelligence data.
- ✗
DeviceFileEvents and DeviceIPInfo
Why it's wrong here
DeviceFileEvents tracks file operations, not network connections. DeviceIPInfo is not a standard advanced hunting table; the correct table for IP reputation is IPReputation. This pair is irrelevant for detecting network communications.
- ✗
EmailEvents and DeviceNetworkEvents
Why it's wrong here
EmailEvents covers email delivery, not network connections. While DeviceNetworkEvents is correct, joining it with EmailEvents does not provide threat intelligence on the IP. The rule would not know if the IP is flagged as malicious.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse `DeviceNetworkEvents` with `DeviceProcessEvents` or `DeviceFileEvents`, mistakenly thinking process or file events can indicate network communication patterns, or they overlook that `IPReputation` is the specific table providing threat intelligence classification for IP addresses.
Detailed technical explanation
How to think about this question
The `IPReputation` table in Microsoft Defender XDR is populated by the Microsoft Intelligent Security Graph, which aggregates threat intelligence from global telemetry, including known C2 servers, phishing hosts, and scanning infrastructure. The `DeviceNetworkEvents` table captures each outbound connection attempt at the kernel level via the Windows Filtering Platform (WFP), including the destination IP and port. When joining these tables, the KQL query typically uses `DeviceNetworkEvents | where RemoteIPType == 'Public' | join kind=inner IPReputation on $left.RemoteIP == $right.IP` to ensure only flagged IPs are considered, and then uses `summarize` with `bin(Timestamp, 1d)` to count communications per device within the sliding 24-hour window.
KKey Concepts to Remember
- DeviceNetworkEvents records all network connections from devices.
- IPReputation provides Microsoft's threat intelligence for IP addresses.
- Tables are joined on common columns, like RemoteIP for network events and IP reputation.
- KQL queries are used to correlate data across advanced hunting tables.
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
DeviceNetworkEvents records all network connections from devices.
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.
What to study next
Got this wrong? Here's your next step.
Review deviceNetworkEvents records all network connections from devices., then practise related MS-102 questions on the same topic to reinforce the concept.
- →
Manage security and threats by using Microsoft Defender XDR — study guide chapter
Learn the concepts, then practise the questions
- →
Manage security and threats by using Microsoft Defender XDR practice questions
Targeted practice on this topic area only
- →
All MS-102 questions
975 questions across all exam domains
- →
Microsoft 365 Administrator MS-102 study guide
Full concept coverage aligned to exam objectives
- →
MS-102 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related MS-102 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Deploy and manage a Microsoft 365 tenant practice questions
Practise MS-102 questions linked to Deploy and manage a Microsoft 365 tenant.
Implement and manage Microsoft Entra identity and access practice questions
Practise MS-102 questions linked to Implement and manage Microsoft Entra identity and access.
Manage security and threats by using Microsoft Defender XDR practice questions
Practise MS-102 questions linked to Manage security and threats by using Microsoft Defender XDR.
Manage compliance by using Microsoft Purview practice questions
Practise MS-102 questions linked to Manage compliance by using Microsoft Purview.
Manage users, groups, licensing, and support practice questions
Practise MS-102 questions linked to Manage users, groups, licensing, and support.
Implement and manage identity and access in Microsoft Entra ID practice questions
Practise MS-102 questions linked to Implement and manage identity and access in Microsoft Entra ID.
MS-102 fundamentals practice questions
Practise MS-102 questions linked to MS-102 fundamentals.
MS-102 scenario practice questions
Practise MS-102 questions linked to MS-102 scenario.
MS-102 troubleshooting practice questions
Practise MS-102 questions linked to MS-102 troubleshooting.
Practice this exam
Start a free MS-102 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this MS-102 question test?
Manage security and threats by using Microsoft Defender XDR — This question tests Manage security and threats by using Microsoft Defender XDR — DeviceNetworkEvents records all network connections from devices..
What is the correct answer to this question?
The correct answer is: DeviceNetworkEvents and IPReputation — Option A is correct because the rule requires detecting network communications to potentially malicious IP addresses, which involves joining `DeviceNetworkEvents` (which logs network connections from devices) with `IPReputation` (which contains Microsoft's threat intelligence classifications for IP addresses). This join allows the query to filter for communications where the destination IP is flagged as malicious and then aggregate by device to trigger an incident when the count exceeds 5 within a 24-hour window.
What should I do if I get this MS-102 question wrong?
Review deviceNetworkEvents records all network connections from devices., then practise related MS-102 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
DeviceNetworkEvents records all network connections from devices.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 11, 2026
This MS-102 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MS-102 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.