Quick Answer
The answer is the `join` operator. This is correct because `join` allows you to combine two datasets—such as a table of current cloud app access events and a baseline table of known IPs per user—on a common key like UserId, and then filter for rows where the IP address in the current access does not match the baseline IP. On the Microsoft Security Operations Analyst SC-200 exam, this scenario tests your ability to detect anomalous access patterns during threat hunting in Microsoft Sentinel; a common trap is reaching for the `where` operator alone, which cannot compare across separate tables. A strong memory tip is to think of `join` as a “matchmaker” that pairs records by user, then lets you spot the mismatched IPs—just remember: join first, then filter for the difference.
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.
During a threat hunting exercise in Microsoft Sentinel, you want to identify all cloud application events where a user accessed a resource from an IP address not previously associated with that user. Which KQL operator should you use to compare current access patterns with a baseline of known IPs?
join
Join matches rows from two tables based on a key, enabling comparison of IPs.
lookup
Why wrong: Lookup extends a table with values from another but does not filter based on mismatches.
summarize
Why wrong: Summarize aggregates values, not suitable for row-level comparison.
union
Why wrong: Union combines rows from multiple tables but does not facilitate comparison based on a key.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
join
The `join` operator allows combining two tables based on a key, such as UserId, and then filtering for rows where the IP does not match the baseline.
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
For each option: why learners choose it and why it is or isn't the right answer here.
join
lookup
Why it's wrong here
Lookup extends a table with values from another but does not filter based on mismatches.
summarize
Why it's wrong here
Summarize aggregates values, not suitable for row-level comparison.
union
Why it's wrong here
Union combines rows from multiple tables but does not facilitate comparison based on a key.
Common exam traps
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
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.
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
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
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 — study guide chapter
Learn the concepts, then practise the questions
Perform threat hunting practice questions
Targeted practice on this topic area only
All SC-200 questions
1,639 questions across all exam domains
Microsoft Security Operations Analyst SC-200 study guide
Full concept coverage aligned to exam objectives
SC-200 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise SC-200 questions linked to Manage a security operations environment.
Practise SC-200 questions linked to Respond to security incidents.
Practise SC-200 questions linked to Perform threat hunting.
Practise SC-200 questions linked to Mitigate threats using Microsoft Defender XDR.
Practise SC-200 questions linked to Mitigate threats using Microsoft Defender for Cloud.
Practise SC-200 questions linked to Mitigate threats using Microsoft Sentinel.
Practise SC-200 questions linked to SC-200 fundamentals.
Practise SC-200 questions linked to SC-200 scenario.
Practise SC-200 questions linked to SC-200 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Perform threat hunting — This question tests Perform threat hunting — Static NAT maps one inside address to one outside address..
The correct answer is: join — The `join` operator allows combining two tables based on a key, such as UserId, and then filtering for rows where the IP does not match the baseline.
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.
Static NAT maps one inside address to one outside address.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.