- A
SecurityEvent
Why wrong: Contains Windows security events, not network traffic.
- B
CommonSecurityLog
Contains network traffic logs from firewalls and other security appliances.
- C
DnsEvents
Why wrong: Contains DNS query logs, not direct IP communication.
- D
DeviceNetworkEvents
Why wrong: From Microsoft Defender for Endpoint, but not the primary source for firewall logs.
Question 798 of 1,639
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 performing a threat hunt in Microsoft Sentinel. You want to identify devices that have been communicating with known malicious IP addresses. Which data source should you query?
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
✓
CommonSecurityLog
CommonSecurityLog is the correct data source because it aggregates logs from various security appliances (e.g., firewalls, proxies) using the Syslog or CEF format. These logs typically contain source and destination IP addresses, making them ideal for correlating internal devices with known malicious IPs during a threat hunt. SecurityEvent and DeviceNetworkEvents lack the necessary network-level IP communication data, while DnsEvents only logs DNS queries, not direct IP connections.
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.
- ✗
SecurityEvent
Why it's wrong here
Contains Windows security events, not network traffic.
- ✓
CommonSecurityLog
Why this is correct
Contains network traffic logs from firewalls and other security appliances.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
DnsEvents
Why it's wrong here
Contains DNS query logs, not direct IP communication.
- ✗
DeviceNetworkEvents
Why it's wrong here
From Microsoft Defender for Endpoint, but not the primary source for firewall logs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose DnsEvents thinking DNS logs show all network communications, but they miss that DNS only resolves domain names to IPs and does not log the actual IP connections, which are captured in CommonSecurityLog from firewalls or proxies.
Detailed technical explanation
How to think about this question
CommonSecurityLog uses the Common Event Format (CEF) standard, which normalizes fields like source IP, destination IP, and destination port across different security devices. In a real-world hunt, you might join CommonSecurityLog with ThreatIntelligenceIndicator tables to find matches against known malicious IPs, leveraging the 'RemoteIP' or 'DestinationIP' fields. This approach is more reliable than DNS logs because a device can communicate with a malicious IP directly without a DNS query (e.g., using a hardcoded IP).
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 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
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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 — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: CommonSecurityLog — CommonSecurityLog is the correct data source because it aggregates logs from various security appliances (e.g., firewalls, proxies) using the Syslog or CEF format. These logs typically contain source and destination IP addresses, making them ideal for correlating internal devices with known malicious IPs during a threat hunt. SecurityEvent and DeviceNetworkEvents lack the necessary network-level IP communication data, while DnsEvents only logs DNS queries, not direct IP connections.
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.
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Last reviewed: Jul 4, 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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