This SC-200 practice question tests your understanding of mitigate threats using microsoft sentinel. 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.
A security analyst needs to create a custom watchlist in Microsoft Sentinel to correlate IP addresses known to be used by a threat actor. The watchlist will be uploaded from a CSV file. Which data type should the analyst specify for the watchlist alias?
String
IP addresses are stored as strings.
Integer
Why wrong: IP addresses are not integers.
DateTime
Why wrong: IP addresses are not date/time values.
Boolean
Why wrong: IP addresses are not boolean values.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
String
The watchlist alias in Microsoft Sentinel is a string identifier used to reference the watchlist in KQL queries. Since IP addresses are stored as text values in CSV files and are not numeric integers, dates, or boolean flags, the correct data type for the alias is String. This ensures the alias can be used in join or lookup operations without type mismatch errors.
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.
String
Why this is correct
IP addresses are stored as strings.
Related concept
Read the scenario before looking for a memorised answer.
Integer
Why it's wrong here
IP addresses are not integers.
DateTime
Why it's wrong here
IP addresses are not date/time values.
Boolean
Why it's wrong here
IP addresses are not boolean values.
Common exam traps
The trap here is that candidates may confuse the data type of the alias with the data type of the IP address values in the CSV, assuming IPs should be integers, but the alias is purely a metadata label and must be a string.
Detailed technical explanation
Under the hood, Microsoft Sentinel watchlists are stored as tables in the workspace's Log Analytics database, and the alias acts as the table name in KQL queries (e.g., _GetWatchlist('MyAlias')). The alias must be a string because KQL table names are always strings; specifying an integer or other type would cause a syntax error. In real-world scenarios, analysts often use descriptive aliases like 'ThreatActorIPs' to make queries readable and maintainable.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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FAQ
Mitigate threats using Microsoft Sentinel — This question tests Mitigate threats using Microsoft Sentinel — Read the scenario before looking for a memorised answer..
The correct answer is: String — The watchlist alias in Microsoft Sentinel is a string identifier used to reference the watchlist in KQL queries. Since IP addresses are stored as text values in CSV files and are not numeric integers, dates, or boolean flags, the correct data type for the alias is String. This ensures the alias can be used in join or lookup operations without type mismatch errors.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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