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.
Exhibit
KQL Query:
DeviceFileEvents
| where Timestamp > ago(7d)
| where FileName contains "confidential"
| where FileSize > 1000
| summarize Count = count() by DeviceName, ActionType
| where Count > 5
Refer to the exhibit. The KQL query is run in Microsoft Defender for Endpoint. What is the purpose of this query?
Exhibit
KQL Query:
DeviceFileEvents
| where Timestamp > ago(7d)
| where FileName contains "confidential"
| where FileSize > 1000
| summarize Count = count() by DeviceName, ActionType
| where Count > 5
A
To find devices with a high number of operations on potentially sensitive files.
Correct: It identifies devices with many events on confidential-named files.
B
To list all devices that have files named confidential.
Why wrong: It summarizes by count and filters for over 5 events.
C
To detect malware on devices.
Why wrong: No malware indicators in query.
D
To list all file creation events.
Why wrong: It filters by file name and size, and summarizes.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
To find devices with a high number of operations on potentially sensitive files.
The KQL query filters for `DeviceFileEvents` where `SensitivityLabel` is not empty, indicating files with sensitivity labels applied (e.g., confidential, internal). It then summarizes the count of operations per device and orders by the highest count. This identifies devices with a high number of operations on potentially sensitive files, aligning with data loss prevention (DLP) monitoring.
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.
✓
To find devices with a high number of operations on potentially sensitive files.
Why this is correct
Correct: It identifies devices with many events on confidential-named files.
Related concept
Read the scenario before looking for a memorised answer.
✗
To list all devices that have files named confidential.
Why it's wrong here
It summarizes by count and filters for over 5 events.
✗
To detect malware on devices.
Why it's wrong here
No malware indicators in query.
✗
To list all file creation events.
Why it's wrong here
It filters by file name and size, and summarizes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume the query lists all file creation events (Option D) or detects malware (Option C), but the key is the `SensitivityLabel` filter, which directly ties to data protection and DLP, not general file events or malware.
Detailed technical explanation
How to think about this question
The `SensitivityLabel` field in `DeviceFileEvents` is populated by Microsoft Purview Information Protection when files are labeled via Azure Information Protection (AIP) or built-in Office sensitivity labels. The query uses `summarize` to aggregate operations per device, which is efficient for identifying high-risk devices in DLP investigations. A real-world scenario is an insider threat where a user copies labeled files to a USB drive; this query would surface the device with the most operations.
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 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.
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: To find devices with a high number of operations on potentially sensitive files. — The KQL query filters for `DeviceFileEvents` where `SensitivityLabel` is not empty, indicating files with sensitivity labels applied (e.g., confidential, internal). It then summarizes the count of operations per device and orders by the highest count. This identifies devices with a high number of operations on potentially sensitive files, aligning with data loss prevention (DLP) monitoring.
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.
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Question Discussion
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