Quick Answer
The answer is CommonSecurityLog, the data source you should query for malicious IP communication in Sentinel threat hunting. This table captures network traffic logs from security appliances like firewalls and proxies, which record source and destination IP addresses, ports, and protocols—making it the direct repository for identifying devices talking to known malicious IPs. On the Microsoft Security Operations Analyst SC-200 exam, this tests your ability to distinguish between log sources: CommonSecurityLog is for network-level IP communications, while SecurityEvent covers Windows host logs, DnsEvents handles DNS queries, and DeviceNetworkEvents from Defender for Endpoint focuses on endpoint network activity but is not the primary source for aggregated appliance logs. A common trap is confusing DeviceNetworkEvents with CommonSecurityLog; remember that CommonSecurityLog is the go-to for cross-appliance IP threat hunting. Memory tip: “Common” means common network appliances, so think “firewall logs for IP lookups.”
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?
SecurityEvent
Why wrong: Contains Windows security events, not network traffic.
CommonSecurityLog
Contains network traffic logs from firewalls and other security appliances.
DnsEvents
Why wrong: Contains DNS query logs, not direct IP communication.
DeviceNetworkEvents
Why wrong: From Microsoft Defender for Endpoint, but not the primary source for firewall logs.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
CommonSecurityLog
Option A is correct because CommonSecurityLog contains network traffic logs from security appliances. Option B is for Windows events, not network. Option C is for DNS queries. Option D is for device events from Defender for Endpoint, but not IP communications.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
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
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which SC-200 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Perform threat hunting — This question tests Perform threat hunting — Read the scenario before looking for a memorised answer..
The correct answer is: CommonSecurityLog — Option A is correct because CommonSecurityLog contains network traffic logs from security appliances. Option B is for Windows events, not network. Option C is for DNS queries. Option D is for device events from Defender for Endpoint, but not IP communications.
Identify which SC-200 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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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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