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. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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
Refer to the exhibit.
$MDEAlert = Get-MDEAlert -Id '123456'
$MDEAlert | Select-Object -Property Id, Title, Severity, Status, LastUpdateTime
Refer to the exhibit. An administrator runs the PowerShell command against Microsoft Defender for Endpoint. The output shows an alert with Severity 'High' and Status 'New'. What should the administrator do next to investigate the alert?
Exhibit
Refer to the exhibit.
$MDEAlert = Get-MDEAlert -Id '123456'
$MDEAlert | Select-Object -Property Id, Title, Severity, Status, LastUpdateTime
A
Change the severity to Medium to reduce false positives
Why wrong: Changing severity won't help investigation.
B
Resolve the alert as a false positive
Why wrong: No evidence it's a false positive.
C
Create a Microsoft Sentinel analytics rule from the alert
Why wrong: The alert is already in Defender; Sentinel can ingest it, but not necessary first step.
D
Investigate the alert details in the Microsoft Defender XDR portal
The portal provides detailed information and actions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Investigate the alert details in the Microsoft Defender XDR portal
The alert has a severity of 'High' and status 'New', indicating a potentially critical threat that requires immediate investigation. The correct next step is to use the Microsoft Defender XDR portal to examine the alert details, including the affected devices, user accounts, and related events, to determine the scope and impact of the threat. Changing severity or resolving the alert without investigation would risk missing a real security incident.
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.
✗
Change the severity to Medium to reduce false positives
Why it's wrong here
Changing severity won't help investigation.
✗
Resolve the alert as a false positive
Why it's wrong here
No evidence it's a false positive.
✗
Create a Microsoft Sentinel analytics rule from the alert
Why it's wrong here
The alert is already in Defender; Sentinel can ingest it, but not necessary first step.
✓
Investigate the alert details in the Microsoft Defender XDR portal
Why this is correct
The portal provides detailed information and actions.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The SC-900 exam often tests the misconception that you should immediately change severity or resolve alerts based on a single data point, rather than following the proper incident response workflow of investigating in the unified security portal.
Detailed technical explanation
How to think about this question
Microsoft Defender for Endpoint alerts are generated by the cloud-based detection engine using machine learning and behavioral analytics, with severity levels (Informational, Low, Medium, High) determined by the potential impact and confidence. The Microsoft Defender XDR portal (formerly Microsoft 365 Defender) provides a unified investigation experience, correlating alerts across endpoints, identities, email, and cloud apps to reveal the full attack chain. The 'Investigate' action in the portal allows administrators to view the alert timeline, related incidents, and perform actions like isolating devices or running antivirus scans.
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.
Visual reference
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: Investigate the alert details in the Microsoft Defender XDR portal — The alert has a severity of 'High' and status 'New', indicating a potentially critical threat that requires immediate investigation. The correct next step is to use the Microsoft Defender XDR portal to examine the alert details, including the affected devices, user accounts, and related events, to determine the scope and impact of the threat. Changing severity or resolving the alert without investigation would risk missing a real security incident.
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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