SCS-C02 Management and Security Governance Practice Question
This SCS-C02 practice question tests your understanding of management and security governance. 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.
Network Topology
Refer to the exhibit. A role has two policies attached. The custom policy includes an Allow for s3:PutObject. An IAM user assumes this role and tries to upload a file to S3. What happens?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The upload succeeds because the custom policy allows s3:PutObject
The upload succeeds because IAM evaluates policies in a default-deny environment, and the custom policy attached to the role explicitly allows s3:PutObject. When a user assumes the role, the effective permissions are the union of all attached policies; the managed policy's read-only restriction does not block the explicit allow for s3:PutObject. Since there is no explicit deny for s3:PutObject, the allow from the custom policy grants the action.
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 upload succeeds because the custom policy allows s3:PutObject
Why this is correct
The custom policy grants write access.
Related concept
Read the scenario before looking for a memorised answer.
✗
The upload fails because the managed policy only allows read
Why it's wrong here
Managed policy allows read, but custom policy allows write.
✗
The upload is denied by default because no explicit allow
Why it's wrong here
There is an explicit allow in the custom policy.
✗
The upload fails because the managed policy overrides the custom policy
Why it's wrong here
There is no override; policies are additive.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates mistakenly believe a more restrictive policy (managed read-only) overrides a less restrictive one (custom allow), but IAM never overrides policies; it only denies if an explicit deny exists, and allows if any explicit allow exists.
Detailed technical explanation
How to think about this question
IAM policy evaluation logic follows a default-deny model where an explicit allow in any applicable policy (identity-based or resource-based) permits the action, unless an explicit deny exists. The managed policy's read-only effect (e.g., s3:GetObject, s3:ListBucket) does not implicitly deny s3:PutObject; only an explicit Deny statement or a boundary policy could block it. In real-world scenarios, this union-of-allows behavior is critical when combining AWS managed policies with custom inline policies to grant additional permissions without removing existing ones.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Management and Security Governance — This question tests Management and Security Governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The upload succeeds because the custom policy allows s3:PutObject — The upload succeeds because IAM evaluates policies in a default-deny environment, and the custom policy attached to the role explicitly allows s3:PutObject. When a user assumes the role, the effective permissions are the union of all attached policies; the managed policy's read-only restriction does not block the explicit allow for s3:PutObject. Since there is no explicit deny for s3:PutObject, the allow from the custom policy grants the action.
What should I do if I get this SCS-C02 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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