DEA-C01 Data Ingestion and Transformation Practice Question

Exhibit

Refer to the exhibit.

```
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "s3:PutObject",
        "s3:GetObject",
        "s3:DeleteObject"
      ],
      "Resource": "arn:aws:s3:::data-lake-bucket/*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "kinesis:PutRecord",
        "kinesis:PutRecords"
      ],
      "Resource": "arn:aws:kinesis:us-east-1:123456789012:stream/input-stream"
    }
  ]
}
```

Refer to the exhibit. An IAM policy is attached to an AWS Glue ETL job. The job reads from the Kinesis stream 'input-stream' and writes to S3 bucket 'data-lake-bucket'. The job fails with an access denied error. Which missing permission is most likely the cause?

⚠ Common exam trap

Many candidates assume only s3:PutObject is needed for writing to S3, forgetting that AWS S3 operations like multipart uploads and prefix validation require the s3:ListBucket permission on the bucket resource.

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

✓

s3:ListBucket permission on the bucket

The AWS Glue ETL job fails with an access denied error because it lacks the s3:ListBucket permission on the 'data-lake-bucket'. When writing to S3, the job must first list the bucket to verify the target prefix exists and to handle multipart uploads; without this permission, the write operation fails even if s3:PutObject is granted.

Answer analysis

Option-by-option breakdown

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

✗
kinesis:PutRecord permission on a wildcard stream ARN
Why it's wrong here
The ARN is specific; wildcard is not needed.
✗
kinesis:DescribeStream permission
Why it's wrong here
This is not required for writing to the stream.
✗
s3:PutObject permission on a specific prefix
Why it's wrong here
The policy already allows PutObject on all objects.
✓
s3:ListBucket permission on the bucket
Why this is correct
Glue needs ListBucket to verify bucket existence and structure.

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

Go deeper

DEA-C01 Data Ingestion and Transformation Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

AWS S3 Storage Class Comparison

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