DEA-C01 Data Security and Governance Practice Question

Exhibit

Refer to the exhibit.

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Deny",
      "Principal": "*",
      "Action": "s3:PutObject",
      "Resource": "arn:aws:s3:::example-bucket/*",
      "Condition": {
        "StringNotEquals": {
          "s3:x-amz-server-side-encryption": "AES256"
        }
      }
    }
  ]
}

Refer to the exhibit. A data engineer attached this S3 bucket policy to the bucket 'example-bucket'. What is the effect of this policy?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

It denies PutObject requests that do not use SSE-S3

The bucket policy denies PutObject requests that do not include the x-amz-server-side-encryption header with value AES256 (SSE-S3). This means any PutObject request without SSE-S3 encryption is denied. Therefore, the correct answer is B.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
It allows all PutObject requests that do not use encryption
Why it's wrong here
This option says it allows all PutObject requests that do not use encryption. The policy actually denies such requests, so A is incorrect.
✓
It denies PutObject requests that do not use SSE-S3
Why this is correct
Ly states that the policy denies PutObject requests that do not use SSE-S3. This matches the policy's condition.
✗
It denies all PutObject requests unless they use SSE-KMS
Why it's wrong here
This option says it denies all PutObject requests unless they use SSE-KMS. The policy requires SSE-S3, not SSE-KMS, so C is incorrect.
✗
It denies all PutObject requests from anonymous users
Why it's wrong here
This option says it denies all PutObject requests from anonymous users. The policy does not restrict based on user identity, so D is incorrect.

Quick reference

AWS S3 Storage Class Comparison

Storage Class	Min Duration	Retrieval	Use Case
S3 Standard	None	Immediate	Frequently accessed data
S3 Standard-IA	30 days	Immediate	Infrequent access, rapid retrieval
S3 One Zone-IA	30 days	Immediate	Non-critical infrequent data
S3 Intelligent-Tiering	None	Immediate–hours	Unknown or changing access patterns
S3 Glacier Instant	90 days	Milliseconds	Archive with instant retrieval
S3 Glacier Flexible	90 days	Minutes–hours	Archive, flexible retrieval
S3 Glacier Deep Archive	180 days	Hours	Long-term compliance archive

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DEA-C01 Data Security and Governance Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

AWS S3 Storage Class Comparison

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