The answer is Advanced hunting. This is the correct capability because it leverages Kusto Query Language (KQL) to perform custom, cross-domain searches across endpoints, email, and identity logs, allowing the analyst to correlate events and trace attacker behavior patterns across a multi-stage attack. On the SC-900 exam, this question tests your understanding of how Microsoft 365 Defender unifies threat data from Defender for Endpoint, Office 365, and Identity into a single query interface, often contrasting it with simpler tools like automated incident response or alerts. A common trap is confusing Advanced hunting with basic threat analytics, but remember: if the scenario requires writing custom queries to connect disparate data sources, the answer is always Advanced hunting. Memory tip: think of it as the “KQL detective” that lets you hunt across every domain.
SC-900 Practice Question: Describe the capabilities of Microsoft security solutions
This SC-900 practice question tests your understanding of describe the capabilities of microsoft security solutions. 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 is using Microsoft 365 Defender to investigate a sophisticated multi-stage attack. The analyst needs to query data across endpoints, email, and identity logs to identify the attacker's behavior patterns and correlate events. Which Microsoft 365 Defender capability should the analyst use?
Why wrong: Automated investigation and response automates the containment and remediation of threats, but it does not allow custom querying across raw data.
B
Threat analytics
Why wrong: Threat analytics provides intelligence on known threats and vulnerabilities, but it does not allow live, custom queries across the organization's data.
C
Advanced hunting
Advanced hunting uses KQL to query raw data from multiple Microsoft 365 Defender components, enabling custom threat hunting and correlation across data sources.
D
Action center
Why wrong: Action center lists pending and completed remediation actions across Microsoft 365 Defender, but it does not provide query capabilities.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Advanced hunting
Advanced hunting is the correct capability because it provides a Kusto Query Language (KQL)-based query interface that allows the security analyst to perform custom, cross-domain searches across data from endpoints (Microsoft Defender for Endpoint), email (Microsoft Defender for Office 365), and identity logs (Microsoft Defender for Identity). This enables the correlation of events and identification of attacker behavior patterns across a multi-stage attack, which is not possible with the other options.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Automated investigation and response
Why it's wrong here
Automated investigation and response automates the containment and remediation of threats, but it does not allow custom querying across raw data.
✗
Threat analytics
Why it's wrong here
Threat analytics provides intelligence on known threats and vulnerabilities, but it does not allow live, custom queries across the organization's data.
✓
Advanced hunting
Why this is correct
Advanced hunting uses KQL to query raw data from multiple Microsoft 365 Defender components, enabling custom threat hunting and correlation across data sources.
Related concept
Read the scenario before looking for a memorised answer.
✗
Action center
Why it's wrong here
Action center lists pending and completed remediation actions across Microsoft 365 Defender, but it does not provide query capabilities.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'Advanced hunting' with 'Threat analytics' because both involve investigating threats, but Threat analytics is a passive reading tool for pre-built reports, while Advanced hunting is an active, custom query engine for raw data correlation.
Detailed technical explanation
How to think about this question
Advanced hunting uses KQL to query the unified Microsoft 365 Defender data schema, which includes tables such as EmailEvents, IdentityLogonEvents, and DeviceProcessEvents. This allows the analyst to join events across domains using common identifiers like AccountUpn or DeviceId, enabling detection of lateral movement or privilege escalation that spans email phishing and endpoint compromise. In a real-world scenario, an analyst could use a KQL query to find all devices where a user logged in after clicking a malicious link in an email, correlating EmailUrlInfo with DeviceLogonEvents.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-900 question in full detail.
Describe the capabilities of Microsoft security solutions — This question tests Describe the capabilities of Microsoft security solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Advanced hunting — Advanced hunting is the correct capability because it provides a Kusto Query Language (KQL)-based query interface that allows the security analyst to perform custom, cross-domain searches across data from endpoints (Microsoft Defender for Endpoint), email (Microsoft Defender for Office 365), and identity logs (Microsoft Defender for Identity). This enables the correlation of events and identification of attacker behavior patterns across a multi-stage attack, which is not possible with the other options.
What should I do if I get this SC-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. During a security incident, a SOC analyst needs to investigate a compromised user account that accessed multiple cloud apps. Which Microsoft Defender XDR feature provides a unified view of the attack timeline across endpoints, identities, and cloud apps?
hard
✓ A.Incident response
B.Microsoft Secure Score
C.Advanced hunting
D.Action center
Why A: Incident response in Microsoft Defender XDR correlates alerts across domains. Option A is correct. Option B (Advanced hunting) is for custom queries. Option C (Secure Score) is for posture improvement. Option D (Action center) is for remediation actions.
Variation 2. Refer to the exhibit. A security analyst runs the KQL query in Microsoft Defender for Endpoint. The query returns no results. What is the most likely cause?
hard
A.The device has a risk score of zero
B.The device runs macOS
C.The analyst lacks permissions to view the device
✓ D.The device is not onboarded to Defender for Endpoint
Why D: The table name is DeviceInfo, but in Microsoft Defender for Endpoint the correct table is DeviceInfo (it exists). However, the query may fail if the device is not onboarded. Option C is correct. Option A (risk score) would still show if device exists. Option B (OS) is not a filter. Option D (permissions) would cause an error, not empty results.
Variation 3. Refer to the exhibit. A security analyst runs this KQL query in Microsoft Sentinel. What is the most likely purpose of this query?
hard
A.To identify successful logins after multiple failures
Why D: Option C is correct because the query counts failed login events (EventID 4625) per account and computer, filtering for accounts with more than 10 failures, which indicates a potential brute-force attack. Option A is wrong because the query does not check for account lockouts. Option B is wrong because the query does not check for successful logins. Option D is wrong because the query does not check for privilege escalation.
Variation 4. Refer to the exhibit. An analyst runs a KQL query in Microsoft Sentinel. What is the primary purpose of this query?
medium
✓ A.To retrieve the most recent 10 malware alerts.
B.To find the single highest severity alert.
C.To count the total number of malware alerts in the last 24 hours.
D.To list all computers with malware alerts.
Why A: The query filters alerts with AlertName 'Malware detected', projects relevant columns, orders by time descending, and takes the top 10. This retrieves the 10 most recent malware alerts. Option A is wrong because it does not count. Option B is wrong because it retrieves multiple alerts, not just one. Option D is wrong because it does not aggregate by computer.
Variation 5. Refer to the exhibit. You are a security analyst using Microsoft Sentinel. You run this KQL query. What does the query return?
medium
A.High-severity alerts that do not have an incident assigned.
B.High-severity alerts that were closed within the last hour.
✓ C.Incident IDs for high-severity alerts that have an open incident.
D.All incidents created in the last hour.
Why C: The query returns incident IDs for high-severity alerts that have an associated incident that is not closed. Option A is incorrect because it returns incidents with status not closed, not all. Option B is incorrect because it filters high severity. Option C is incorrect because it joins alerts with incidents, not just alerts without incidents.
Variation 6. Refer to the exhibit. A security analyst in your SOC runs the provided KQL query in Microsoft Sentinel to identify users with repeated MFA or suspicious sign-in alerts. The query returns no results even though alerts exist. What is the most likely issue?
hard
A.The 'extend' operator fails because 'Entities' array is empty.
✓ B.The alert names do not contain the strings 'MFA' or 'Suspicious sign-in'.
C.The TimeGenerated filter is too restrictive; alerts older than 7 days are excluded.
D.The 'has' operator is case-sensitive and the alert names are in uppercase.
Why B: The query uses the 'has' operator which is case-insensitive, but the alert names in the environment might use different wording (e.g., 'Azure AD MFA' instead of 'MFA'). Option A is incorrect because the query uses 'has' which is case-insensitive. Option C is incorrect because the time range is 7 days. Option D is incorrect because the query correctly uses 'extend'.
Last reviewed: Jun 11, 2026
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