The correct answer is the user’s last sign-in dates, because the Get-MgUser SignInActivity PowerShell command retrieves the SignInActivity property, which specifically contains the last successful and last failed sign-in timestamps for a user in Microsoft Entra ID. This command does not return group memberships, assigned licenses, or general user profile details—it focuses exclusively on authentication activity. On the SC-900 exam, this tests your understanding of how Microsoft Graph PowerShell cmdlets map to specific identity reporting capabilities, often appearing in scenario-based questions where you must distinguish between sign-in logs, license reports, and group membership queries. A common trap is confusing Get-MgUser with Get-MgUserLicenseDetail or Get-MgUserMemberOf, but remember: SignInActivity always points to sign-in times, not licenses or groups. For a quick memory tip, think “SignInActivity = Sign-In Times” to avoid mixing it up with other user properties.
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.
Get-MgUser -Filter "userPrincipalName eq 'user@contoso.com'" | Select-Object Id, DisplayName, UserPrincipalName, SignInActivity
Id : a0b1c2d3-e4f5-6789-0abc-def012345678
DisplayName : John Doe
UserPrincipalName: user@contoso.com
SignInActivity : @{LastSignInDateTime=2026-02-15T14:30:00Z; LastNonInteractiveSignInDateTime=2026-02-15T10:00:00Z}
You run the Microsoft Graph PowerShell command in the exhibit. What information does this command retrieve about the user?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The user's last sign-in dates
Option C is correct because the command uses Get-MgUser with the SignInActivity property to retrieve last sign-in times. Option A is wrong because it does not show group memberships. Option B is wrong because it shows sign-in times, not licenses. Option D is wrong because it shows the user's details, not license assignments.
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.
✗
The user's license assignments
Why it's wrong here
The command selects SignInActivity, not licenses.
✓
The user's last sign-in dates
Why this is correct
The SignInActivity property shows last interactive and non-interactive sign-in dates.
Related concept
Read the scenario before looking for a memorised answer.
✗
The user's assigned roles
Why it's wrong here
The command does not retrieve role assignments.
✗
The user's group memberships
Why it's wrong here
The command does not include any group-related parameters.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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.
Trap categories for this question
Command / output trap
The command selects SignInActivity, not licenses.
Detailed technical explanation
How to think about this question
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.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Identify which SC-900 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.
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: The user's last sign-in dates — Option C is correct because the command uses Get-MgUser with the SignInActivity property to retrieve last sign-in times. Option A is wrong because it does not show group memberships. Option B is wrong because it shows sign-in times, not licenses. Option D is wrong because it shows the user's details, not license assignments.
What should I do if I get this SC-900 question wrong?
Identify which SC-900 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.
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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