This CC practice question tests your understanding of security operations. 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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Read-only access to all objects in the critical-data bucket.
The JSON policy grants the SecurityAuditor role the `s3:GetObject` action on the `arn:aws:s3:::critical-data/*` resource, which provides read-only access to all objects in the critical-data bucket. The `Effect` is set to `Allow`, and no other actions like `s3:PutObject` or `s3:DeleteObject` are included, so the role cannot write or delete objects. This matches the correct answer B.
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.
✗
No access to any S3 resources.
Why it's wrong here
Access is explicitly granted.
✓
Read-only access to all objects in the critical-data bucket.
Why this is correct
GetObject grants read access.
Related concept
Read the scenario before looking for a memorised answer.
✗
Write access to the critical-data bucket.
Why it's wrong here
Write actions like PutObject are not allowed.
✗
Full access to the S3 bucket critical-data.
Why it's wrong here
Only GetObject is allowed, not PutObject or Delete.
Common exam traps
Common exam trap: answer the scenario, not the keyword
ISC2 often tests the distinction between bucket-level and object-level permissions, where candidates mistakenly assume that `s3:GetObject` on `/*` implies full access or write capabilities, but it only grants read access to objects.
Detailed technical explanation
How to think about this question
In AWS IAM, resource-based policies like this one use the `Action` element to specify permitted API calls; `s3:GetObject` is a read-only operation that retrieves an object's data and metadata. The `Resource` ARN `arn:aws:s3:::critical-data/*` applies to all objects within the bucket, but does not include the bucket itself (e.g., `s3:ListBucket` would be needed for listing objects). In a real-world scenario, a SecurityAuditor role might be used for compliance checks, where read-only access to logs or sensitive data is required without the ability to modify or delete them.
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 security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CC question in full detail.
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Read-only access to all objects in the critical-data bucket. — The JSON policy grants the SecurityAuditor role the `s3:GetObject` action on the `arn:aws:s3:::critical-data/*` resource, which provides read-only access to all objects in the critical-data bucket. The `Effect` is set to `Allow`, and no other actions like `s3:PutObject` or `s3:DeleteObject` are included, so the role cannot write or delete objects. This matches the correct answer B.
What should I do if I get this CC 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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