MLS-C01 Modeling Practice Question
Exhibit
Refer to the exhibit.
```
{
"ModelName": "my-model",
"PrimaryContainer": {
"Image": "382416733822.dkr.ecr.us-east-1.amazonaws.com/linear-learner:1",
"ModelDataUrl": "s3://my-bucket/model.tar.gz",
"Environment": {
"SAGEMAKER_CONTAINER_LOG_LEVEL": "20",
"SAGEMAKER_REGION": "us-east-1"
}
},
"ExecutionRoleArn": "arn:aws:iam::123456789012:role/SageMakerRole"
}
```Refer to the exhibit. A data scientist creates a SageMaker model using the configuration above. When deploying the model to an endpoint, the endpoint status remains 'Creating' for a long time and then fails. What is the most likely cause?
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
✓
The IAM role lacks permission to pull the Docker image from ECR
The image URI points to an ECR repository in account 382416733822, which is not the customer's account. SageMaker expects the image to be in the same account or accessible via cross-account permissions. This URI is likely the AWS account for built-in algorithms, but if the region or repository is incorrect, it may fail. The most likely issue is that the image does not exist in that account or the role lacks permissions to pull it.
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 S3 model artifact does not exist
Why it's wrong here
The error would be different and occur earlier.
- ✗
The environment variable SAGEMAKER_REGION is incorrect
Why it's wrong here
It matches the region; this would not cause a failure.
- ✗
The model name is already in use
Why it's wrong here
Model names must be unique; error would be immediate.
- ✓
The IAM role lacks permission to pull the Docker image from ECR
Why this is correct
The image is in a different account; the role needs ecr:GetDownloadUrlForLayer and BatchGetImage permissions.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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