Quick Answer
The correct answer is the `in` operator because it directly checks whether a value exists within a list or dynamic array, making it the ideal choice for matching source IP addresses against a watchlist of known malicious IPs in Microsoft Sentinel. When your threat hunting team needs to filter network connection logs over the past 7 days, the `in` operator efficiently compares each source IP against the watchlist’s stored values, returning only matching records. On the SC-200 exam, this question tests your understanding of KQL operators for watchlist integration, a common scenario in threat hunting and incident response. A frequent trap is confusing `in` with `has` or `contains`, which search for substrings within strings rather than exact list membership—remember, `in` is for list matching, not text containment. Memory tip: think of `in` as “inside the list,” just like checking if a key is inside a set of keys.
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.
Your threat hunting team uses Microsoft Sentinel. They want to search for anomalous network connections to known malicious IP addresses over the past 7 days. Which KQL operator should they use to match the source IP addresses against a watchlist containing the malicious IPs?
where
Why wrong: `where` is a clause used to filter rows, not a list membership operator.
in
The `in` operator returns true if the value is in the list.
has
Why wrong: `has` is for substring matching, not list membership.
contains
Why wrong: `contains` is for substring matching.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
in
Option A is correct because the `in` operator checks if a value exists in a list or dynamic array. Option B is wrong because `has` is for string containment, not list membership. Option C is wrong because `where` is a clause, not an operator for list matching. Option D is wrong because `contains` is for substring matching.
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.
where
Why it's wrong here
`where` is a clause used to filter rows, not a list membership operator.
in
Why this is correct
The `in` operator returns true if the value is in the list.
Related concept
Read the scenario before looking for a memorised answer.
has
Why it's wrong here
`has` is for substring matching, not list membership.
contains
Why it's wrong here
`contains` is for substring matching.
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.
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 — Read the scenario before looking for a memorised answer..
The correct answer is: in — Option A is correct because the `in` operator checks if a value exists in a list or dynamic array. Option B is wrong because `has` is for string containment, not list membership. Option C is wrong because `where` is a clause, not an operator for list matching. Option D is wrong because `contains` is for substring matching.
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.
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.