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MLS-C01 Modeling Practice Question

Network Topology
aws sagemaker describe-endpointendpoint-name my-endpointRefer to the exhibit.```"EndpointName": "my-endpoint","EndpointArn": "arn:aws:sagemaker:us-east-1:123456789012:endpoint/my-endpoint","EndpointConfigName": "my-config","ProductionVariants": ["VariantName": "primary","DeployedImages": ["SpecifiedImage": "123456789012.dkr.ecr.us-east-1.amazonaws.com/my-model:latest","ResolvedImage": "123456789012.dkr.ecr.us-east-1.amazonaws.com/my-model@sha256:abc123","ResolutionTime": "2023-01-01T00:00:00Z"],"CurrentWeight": 0.5,"DesiredWeight": 0.5,"CurrentInstanceCount": 1,"DesiredInstanceCount": 1"EndpointStatus": "InService","CreationTime": "2023-01-01T00:00:00Z"

Refer to the exhibit. A data scientist wants to update the endpoint to use a new model image. The scientist updates the endpoint configuration with the new image and calls UpdateEndpoint. After the update, the endpoint status is 'Updating' but remains in that state for a long time. 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 new model image is failing health checks

Blue/green deployment requires the new model to be healthy before traffic is shifted. If the new model fails health checks, the update may hang. Option B is wrong because the endpoint is updating, not failed. Option C is wrong because the old model is still running. Option D is wrong because there is no indication of insufficient capacity.

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 new model image is failing health checks

    Why this is correct

    SageMaker waits for the new variant to pass health checks; failure can cause indefinite updating.

  • ✗

    The endpoint is already InService, so it cannot be updated

    Why it's wrong here

    Endpoints can be updated while InService.

  • ✗

    The old model image is no longer available

    Why it's wrong here

    The old image is still deployed and healthy.

  • ✗

    The instance count is too low to deploy both variants

    Why it's wrong here

    The update uses the same instance count; blue/green deploys both.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This MLS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MLS-C01 exam.