SC-900 Practice Question: Describe the concepts of security, compliance, and identity
This SC-900 practice question tests your understanding of describe the concepts of security, compliance, and identity. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 user authenticates to a company's network by entering their password and then approving a push notification on their mobile phone. After authentication, the user attempts to access a shared folder containing financial reports. The access is denied because the user's account is not a member of the 'Finance' group. Which security concept is demonstrated when the user is denied access to the folder?
Why wrong: Authentication is the process of verifying the user's identity (e.g., password and MFA). The denial occurs after authentication, so this is not the correct concept.
B
Authorization
Authorization controls what an authenticated user is allowed to do. Denying access to the folder due to missing group membership is an authorization decision.
C
Non-repudiation
Why wrong: Non-repudiation ensures that a party cannot deny having performed an action, often through auditing or digital signatures. This scenario does not involve denying actions.
D
Accounting
Why wrong: Accounting (or auditing) refers to tracking user activities for monitoring and billing. The access denial is not about logging or tracking actions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Authorization
Authorization is the security concept that determines what resources a user is allowed to access after their identity has been verified. In this scenario, the user successfully authenticated but was denied access to the financial reports folder because their account lacked the necessary permissions—specifically, membership in the 'Finance' group. This access control decision is the essence of authorization, which enforces policies based on identity attributes like group membership.
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.
✗
Authentication
Why it's wrong here
Authentication is the process of verifying the user's identity (e.g., password and MFA). The denial occurs after authentication, so this is not the correct concept.
✓
Authorization
Why this is correct
Authorization controls what an authenticated user is allowed to do. Denying access to the folder due to missing group membership is an authorization decision.
Related concept
Read the scenario before looking for a memorised answer.
✗
Non-repudiation
Why it's wrong here
Non-repudiation ensures that a party cannot deny having performed an action, often through auditing or digital signatures. This scenario does not involve denying actions.
✗
Accounting
Why it's wrong here
Accounting (or auditing) refers to tracking user activities for monitoring and billing. The access denial is not about logging or tracking actions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse authentication (proving who you are) with authorization (what you are allowed to do), especially when the question includes a multi-factor authentication step that seems to 'grant' access, but the denial is purely an authorization failure.
Trap categories for this question
Scenario analysis trap
Non-repudiation ensures that a party cannot deny having performed an action, often through auditing or digital signatures. This scenario does not involve denying actions.
Detailed technical explanation
How to think about this question
Under the hood, authorization in Windows environments relies on access control lists (ACLs) attached to securable objects like folders. When the user attempts to access the folder, the system performs an access check by comparing the user's security identifier (SID) and group SIDs against the ACL entries; if no matching allow entry exists (or a deny entry applies), access is denied. This process is governed by the Windows Security Reference Monitor (SRM), which evaluates every access token against the object's security descriptor.
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 concepts of security, compliance, and identity — This question tests Describe the concepts of security, compliance, and identity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Authorization — Authorization is the security concept that determines what resources a user is allowed to access after their identity has been verified. In this scenario, the user successfully authenticated but was denied access to the financial reports folder because their account lacked the necessary permissions—specifically, membership in the 'Finance' group. This access control decision is the essence of authorization, which enforces policies based on identity attributes like group membership.
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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