- A
Create a KQL query in Microsoft Sentinel that joins DeviceProcessEvents with DeviceNetworkEvents on DeviceId and a 1-minute time window, filtering for LOLBin processes and external IP connections.
This correlates process execution with network connections, identifying potential C2 activity.
- B
Use the 'DeviceNetworkEvents' table alone to find connections to known malicious IPs from the threat intelligence feed.
Why wrong: This misses the process context and may not detect unknown C2 IPs.
- C
Run a query in Advanced hunting that filters DeviceProcessEvents for known LOLBin file names like 'rundll32.exe' and 'mshta.exe', then manually review each instance.
Why wrong: Manual review is inefficient and does not correlate with network events.
- D
Set up a custom detection rule in Microsoft Defender for Endpoint to alert on any LOLBin execution, then investigate the alerts.
Why wrong: This is reactive detection, not proactive hunting.
Quick Answer
The answer is to create a KQL query in Microsoft Sentinel that joins DeviceProcessEvents with DeviceNetworkEvents on DeviceId and a 1-minute time window, filtering for LOLBin processes and external IP connections. This approach is correct because APT hunting with LOLBins requires correlating process execution with subsequent network behavior to detect living-off-the-land binaries used for malicious code execution followed by encrypted C2 tunnels. By joining these two tables on the device identifier and a tight time window, you can identify suspicious command-line activity from legitimate binaries like PowerShell or certutil that immediately connect to unknown external IPs, which is a hallmark of APT tradecraft. On the SC-200 exam, this scenario tests your ability to perform proactive threat hunting across Microsoft Defender data sources rather than relying on pre-built detections. A common trap is choosing an answer that only looks at network logs or only at process logs, missing the critical correlation step. Memory tip: think “process first, network second, join on device and time” to catch the full kill chain.
SC-200 Perform threat hunting Practice Question
This SC-200 practice question tests your understanding of perform threat hunting. 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.
You are a threat hunter at Contoso, a multinational company with 10,000 employees. Your production environment includes: Microsoft 365 E5 licenses; Microsoft Sentinel in a central Log Analytics workspace; Microsoft Defender for Endpoint, Office 365, Identity, and Cloud Apps; and Microsoft Entra ID P2. You are tasked with hunting for a potential advanced persistent threat (APT) that may have compromised a high-privilege account. The threat intelligence team has reported that the APT group uses living-off-the-land binaries (LOLBins) to execute malicious code and uses encrypted tunnels to C2 servers. You need to design a hunting query in Microsoft Sentinel that correlates multiple data sources to identify suspicious LOLBin usage combined with unusual network connections. Which approach should you take?
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
Create a KQL query in Microsoft Sentinel that joins DeviceProcessEvents with DeviceNetworkEvents on DeviceId and a 1-minute time window, filtering for LOLBin processes and external IP connections.
Option B is correct because the KQL query joins DeviceProcessEvents and DeviceNetworkEvents on DeviceId and timestamp to find processes with suspicious command lines and subsequent network connections to external IPs. Option A is wrong because it does not correlate processes with network connections. Option C is wrong because it uses only network data without process context. Option D is wrong because it focuses only on alerts, missing proactive hunting.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create a KQL query in Microsoft Sentinel that joins DeviceProcessEvents with DeviceNetworkEvents on DeviceId and a 1-minute time window, filtering for LOLBin processes and external IP connections.
Why this is correct
This correlates process execution with network connections, identifying potential C2 activity.
Related concept
Authentication checks who the user is.
- ✗
Use the 'DeviceNetworkEvents' table alone to find connections to known malicious IPs from the threat intelligence feed.
Why it's wrong here
This misses the process context and may not detect unknown C2 IPs.
- ✗
Run a query in Advanced hunting that filters DeviceProcessEvents for known LOLBin file names like 'rundll32.exe' and 'mshta.exe', then manually review each instance.
Why it's wrong here
Manual review is inefficient and does not correlate with network events.
- ✗
Set up a custom detection rule in Microsoft Defender for Endpoint to alert on any LOLBin execution, then investigate the alerts.
Why it's wrong here
This is reactive detection, not proactive hunting.
Common exam traps
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Detailed technical explanation
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
- Authentication checks who the user is.
- Authorization controls what the user is allowed to do after login.
- Privilege levels affect access to EXEC and configuration commands.
- AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
- Do not assume successful login means full administrative access.
- Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
- Separate login problems from permission problems before choosing the answer.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
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.
What to study next
Got this wrong? Here's your next step.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SC-200 questions on access control and AAA configuration.
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FAQ
Questions learners often ask
What does this SC-200 question test?
Perform threat hunting — This question tests Perform threat hunting — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: Create a KQL query in Microsoft Sentinel that joins DeviceProcessEvents with DeviceNetworkEvents on DeviceId and a 1-minute time window, filtering for LOLBin processes and external IP connections. — Option B is correct because the KQL query joins DeviceProcessEvents and DeviceNetworkEvents on DeviceId and timestamp to find processes with suspicious command lines and subsequent network connections to external IPs. Option A is wrong because it does not correlate processes with network connections. Option C is wrong because it uses only network data without process context. Option D is wrong because it focuses only on alerts, missing proactive hunting.
What should I do if I get this SC-200 question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related SC-200 questions on access control and AAA configuration.
What is the key concept behind this question?
Authentication checks who the user is.
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Last reviewed: Jun 21, 2026
This SC-200 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 SC-200 exam.
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