The answer is the search function. In Microsoft Sentinel, when hunting for LOLBin execution by parent process across multiple machines, the search function allows you to scan all log tables for a specific pattern, such as a known malicious parent process name or command line, without needing to specify each table individually. This is critical for living-off-the-land binary detection because adversaries often use trusted system tools like PowerShell or rundll32 spawned from unusual parent processes like Microsoft Office or a browser. On the SC-200 exam, this question tests your ability to choose the broadest KQL tool for cross-table reconnaissance, with a common trap being to select union or find—union only combines tables without pattern matching, while find is less efficient for ad-hoc hunting. Remember the memory tip: “Search scans, union stacks, find filters, evaluate runs plugins.”
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 security analyst performing threat hunting in Microsoft Sentinel. You suspect an adversary is using living-off-the-land binaries (LOLBins) to execute code. Which KQL function should you use to search for processes spawned by a specific parent process across multiple machines?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
search
Option C is correct because 'search' can scan across tables for a pattern, but for process ancestry queries, joining DeviceProcessEvents with DeviceEvents is common. However, the best approach is to use 'let' to define a lookup and then use 'join'. The question expects knowledge of 'search' as a broad tool. Option A is wrong because 'union' combines tables, not specifically parent-child relationships. Option B is wrong because 'find' searches across tables but is less efficient. Option D is wrong because 'evaluate' is for plugin execution.
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.
✓
search
Why this is correct
Search can be used to find patterns across tables, and for process ancestry, you can use it in combination with other functions.
Related concept
Static NAT maps one inside address to one outside address.
✗
find
Why it's wrong here
Find searches across tables but is not the most efficient for process ancestry.
✗
evaluate
Why it's wrong here
Evaluate is used for plugin execution, not for searching process relationships.
✗
union
Why it's wrong here
Union combines rows from multiple tables but does not specifically query parent-child process relationships.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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: search — Option C is correct because 'search' can scan across tables for a pattern, but for process ancestry queries, joining DeviceProcessEvents with DeviceEvents is common. However, the best approach is to use 'let' to define a lookup and then use 'join'. The question expects knowledge of 'search' as a broad tool. Option A is wrong because 'union' combines tables, not specifically parent-child relationships. Option B is wrong because 'find' searches across tables but is less efficient. Option D is wrong because 'evaluate' is for plugin execution.
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.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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