The answer is that the IAM policy attached to the user or group does not include s3:PutObject for that bucket. This is correct because AWS IAM operates on an explicit allow model: if no policy statement explicitly grants the s3:PutObject action on the target bucket, the request is denied by the default implicit deny, even if no explicit deny rule exists. On the CCSP exam, this distinction between implicit deny and explicit deny is a core concept tested in identity and access management scenarios, often appearing as a trap where candidates assume a missing deny means permission is granted. A common memory tip is to remember that in AWS, everything is denied by default unless explicitly allowed—think of it as "no allow equals no access." For the Certified Cloud Security Professional exam, always check for an explicit Allow before assuming a deny is due to an explicit Deny statement.
CCSP Legal, Risk and Compliance Practice Question
This CCSP practice question tests your understanding of legal, risk and compliance. 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.
Exhibit
Refer to the exhibit.
Error Log Entry:
Timestamp: 2024-08-15T14:23:10Z
User: [email protected]
Action: PutObject
Resource: s3://finance-reports/quarterly.xlsx
Status: AccessDenied
Source IP: 203.0.113.45
UserAgent: [ConsoleLogin]
Additional: The user does not have permissions to write to this bucket.
Refer to the exhibit. A cloud administrator sees this error log from AWS CloudTrail. The user [email protected] is a member of the 'Analysts' group. Which of the following is the most likely cause of the AccessDenied error?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Refer to the exhibit.
Error Log Entry:
Timestamp: 2024-08-15T14:23:10Z
User: [email protected]
Action: PutObject
Resource: s3://finance-reports/quarterly.xlsx
Status: AccessDenied
Source IP: 203.0.113.45
UserAgent: [ConsoleLogin]
Additional: The user does not have permissions to write to this bucket.
A
The user is trying to access the bucket from a different AWS region.
Why wrong: Cross-region access is allowed by default; region mismatch is not an issue.
B
The IAM policy attached to the user or group does not include s3:PutObject for that bucket.
Missing IAM permissions are a common cause of AccessDenied.
C
The bucket policy explicitly denies access to the 'Analysts' group.
Why wrong: A deny in bucket policy would also cause AccessDenied, but the log does not indicate a bucket policy denial.
D
The bucket requires server-side encryption and the request did not include encryption headers.
Why wrong: Encryption mismatch would produce a different error, not AccessDenied.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The IAM policy attached to the user or group does not include s3:PutObject for that bucket.
The AccessDenied error for an s3:PutObject operation indicates that the IAM policy attached to the user or group does not grant the necessary permissions. Since the user is a member of the 'Analysts' group, the most likely cause is that the group's IAM policy lacks an Allow effect for s3:PutObject on the target bucket. AWS IAM evaluates both identity-based and resource-based policies, and if no explicit Allow is present, the default implicit deny applies.
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 is trying to access the bucket from a different AWS region.
Why it's wrong here
Cross-region access is allowed by default; region mismatch is not an issue.
✓
The IAM policy attached to the user or group does not include s3:PutObject for that bucket.
Why this is correct
Missing IAM permissions are a common cause of AccessDenied.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The bucket policy explicitly denies access to the 'Analysts' group.
Why it's wrong here
A deny in bucket policy would also cause AccessDenied, but the log does not indicate a bucket policy denial.
✗
The bucket requires server-side encryption and the request did not include encryption headers.
Why it's wrong here
Encryption mismatch would produce a different error, not AccessDenied.
Common exam traps
Common exam trap: answer the scenario, not the keyword
ISC2 often tests the distinction between an implicit deny (missing Allow) and an explicit deny (Deny statement), and candidates mistakenly assume a bucket policy or encryption requirement is the cause when the error is simply a missing permission in the IAM policy.
Detailed technical explanation
How to think about this question
IAM policy evaluation follows a default-deny model: an explicit Allow in an identity-based or resource-based policy is required to grant access, and an explicit Deny overrides any Allow. The s3:PutObject action is a write operation that requires both the s3:PutObject permission and, if the bucket is configured with S3 Block Public Access or bucket policies, additional conditions may apply. In practice, administrators often attach managed policies like 'AmazonS3FullAccess' to groups, but if a custom policy is used and omits s3:PutObject, the API call fails with AccessDenied.
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 developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
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.
Legal, Risk and Compliance — This question tests Legal, Risk and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The IAM policy attached to the user or group does not include s3:PutObject for that bucket. — The AccessDenied error for an s3:PutObject operation indicates that the IAM policy attached to the user or group does not grant the necessary permissions. Since the user is a member of the 'Analysts' group, the most likely cause is that the group's IAM policy lacks an Allow effect for s3:PutObject on the target bucket. AWS IAM evaluates both identity-based and resource-based policies, and if no explicit Allow is present, the default implicit deny applies.
What should I do if I get this CCSP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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