MLS-C01 Practice Question: Machine Learning Implementation and Operations
Network Topology
An engineer runs the AWS CLI command in the exhibit to create a SageMaker endpoint configuration. The endpoint is created successfully, but when invoked, the inference response is slow. The engineer wants to test with a different instance type. Which action should the engineer take?
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
✓
Update the endpoint configuration with the new instance type and then update the endpoint
To change the instance type for an existing SageMaker endpoint, you must first update the endpoint configuration with the new instance type, then update the endpoint to use the updated configuration. Option D describes this correct procedure. Option B is incorrect because the update-endpoint API does not directly accept an instance type parameter; it updates the endpoint to use a new endpoint configuration. Option A creates a new endpoint, which is less efficient. Option C deletes the endpoint unnecessarily.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a new endpoint configuration and use it to create a new endpoint
Why it's wrong here
This creates a second endpoint, not updating the existing one.
- ✗
Modify the existing endpoint directly using the update-endpoint API with a new instance type parameter
Why it's wrong here
Update-endpoint takes an endpoint config name, not instance type directly.
- ✗
Delete the endpoint and create a new one with the desired instance type
Why it's wrong here
Deleting the endpoint is unnecessary and causes downtime, as SageMaker allows updating an existing endpoint to use a new endpoint configuration that specifies the desired instance type. This approach avoids service interruption. The option is tempting because many cloud resources are immutable, requiring deletion and recreation for fundamental changes. It would be correct if the endpoint's name needed to change, or if a complete redeployment from scratch was genuinely preferred over an update.
- ✓
Update the endpoint configuration with the new instance type and then update the endpoint
Why this is correct
You can update the endpoint configuration and then call update-endpoint to apply changes.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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