SCS-C02 Security Logging and Monitoring Practice Question
This SCS-C02 practice question tests your understanding of security logging and monitoring. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Refer to the exhibit. An IAM policy is attached to an IAM user. The user reports that they can upload objects to the S3 bucket but cannot list the contents of the bucket. Which statement explains this behavior?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The policy does not include the s3:ListBucket action.
Option A is correct because the policy only grants s3:PutObject and s3:GetObject actions, but does not grant s3:ListBucket. The ListBucket action is required to list objects in the bucket. Option B is wrong because the policy allows PutObject and GetObject, not Deny. Option C is wrong because the policy does not include s3:ListBucket. Option D is wrong because the policy does not explicitly deny ListBucket; it just does not allow it.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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 policy does not include the s3:ListBucket action.
Why this is correct
The policy only allows PutObject and GetObject, not ListBucket.
Related concept
Standard ACLs match source addresses.
✗
The policy includes s3:ListBucket but is missing the bucket ARN.
Why it's wrong here
The policy does not include s3:ListBucket at all.
✗
The policy denies the s3:ListBucket action.
Why it's wrong here
The policy does not contain any Deny statements.
✗
The policy explicitly denies s3:ListBucket.
Why it's wrong here
No explicit deny exists.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SCS-C02 ACL questions on filtering logic and placement.
Security Logging and Monitoring — This question tests Security Logging and Monitoring — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The policy does not include the s3:ListBucket action. — Option A is correct because the policy only grants s3:PutObject and s3:GetObject actions, but does not grant s3:ListBucket. The ListBucket action is required to list objects in the bucket. Option B is wrong because the policy allows PutObject and GetObject, not Deny. Option C is wrong because the policy does not include s3:ListBucket. Option D is wrong because the policy does not explicitly deny ListBucket; it just does not allow it.
What should I do if I get this SCS-C02 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SCS-C02 ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Question Discussion
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