MLA-C01 Practice Question: Refer to the exhibit

Exhibit

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "sagemaker:CreatePresignedDomainUrl",
            "Resource": "*"
        }
    ]
}

Refer to the exhibit. A user has the above IAM policy attached but cannot access files in SageMaker Studio. What additional permission is most likely needed?

⚠ Common exam trap

The MLA-C01 exam often tests the distinction between SageMaker control plane permissions (e.g., CreateApp, DescribeUserProfile) and data plane permissions (e.g., S3 GetObject), leading candidates to focus on SageMaker-specific actions when the real blocker is S3 access.

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:GetObject on the relevant S3 buckets

The IAM policy shown likely grants permissions for SageMaker API actions (e.g., CreateApp, DescribeDomain) but does not include S3 data plane permissions. SageMaker Studio notebooks and experiments read training data, scripts, and model artifacts from S3 buckets. Without s3:GetObject on the relevant S3 buckets, the user can launch the Studio environment but cannot load or save any files, resulting in access failures.

Answer analysis

Option-by-option breakdown

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

✗
sagemaker:ListApps
Why it's wrong here
ListApps is for listing applications, not accessing files.
✓
s3:GetObject on the relevant S3 buckets
Why this is correct
To read files in Studio, the user must have S3 access permissions.
✗
sagemaker:DescribeUserProfile
Why it's wrong here
DescribeUserProfile is for reading user profile details, not file access.
✗
kms:Decrypt
Why it's wrong here
KMS decrypt is needed only if data is encrypted with customer-managed KMS keys, but is not the primary missing permission.

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

MLA-C01 Practice Question: Refer to the exhibit

Exhibit

Why each option matters

Option-by-option breakdown

AWS S3 Storage Class Comparison

Related to this question