The answer is advanced hunting in Microsoft Defender XDR. This is the correct choice because advanced hunting allows you to write custom KQL queries to proactively search for patterns like large data uploads to unapproved cloud storage across all users, rather than reacting to a single alert. On the SC-200 exam, this question tests your ability to distinguish between proactive hunting and reactive tools—a common trap is confusing custom detection rules (which create alerts from queries) with the act of hunting itself. Remember, if the scenario asks you to “hunt for similar patterns” or “investigate across all users,” you need advanced hunting, not incident investigation (which focuses on one incident) or automation rules (which handle responses). Memory tip: “Hunt with KQL, detect with rules”—advanced hunting is your proactive query engine, while custom detections automate alerts from those same queries.
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 investigating a potential data exfiltration incident. You notice a user uploading large amounts of data to a cloud storage service that the organization has not approved. Which Microsoft Defender XHR feature would best help you hunt for similar patterns across all users?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Advanced hunting in Microsoft Defender XDR
Option B is correct because advanced hunting allows you to write custom KQL queries to detect patterns like large uploads to unapproved cloud storage. Option A is wrong because custom detection rules are for creating alerts based on queries, but the question asks for hunting. Option C is wrong because incident investigation focuses on a single incident, not proactive hunting. Option D is wrong because automation rules automate responses, not hunting.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Custom detection rules in Microsoft Sentinel
Why it's wrong here
Custom detection rules are for alerting, not for ad-hoc hunting across historical data.
✓
Advanced hunting in Microsoft Defender XDR
Why this is correct
Advanced hunting provides a KQL interface to query raw data across endpoints, identities, and cloud apps for hunting.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Incident investigation graph in Microsoft Defender XDR
Why it's wrong here
Incident investigation graph is used for analyzing a specific incident, not for broad hunting.
✗
Automation rules in Microsoft Sentinel
Why it's wrong here
Automation rules automate response actions, not hunting.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-200 question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SC-200 NAT questions on configuration and troubleshooting.
Perform threat hunting — This question tests Perform threat hunting — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Advanced hunting in Microsoft Defender XDR — Option B is correct because advanced hunting allows you to write custom KQL queries to detect patterns like large uploads to unapproved cloud storage. Option A is wrong because custom detection rules are for creating alerts based on queries, but the question asks for hunting. Option C is wrong because incident investigation focuses on a single incident, not proactive hunting. Option D is wrong because automation rules automate responses, not hunting.
What should I do if I get this SC-200 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SC-200 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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