MLS-C01 Modeling Practice Question
Network Topology
A team deployed a SageMaker endpoint with the configuration shown in the exhibit. During a traffic spike, the endpoint becomes unresponsive. Which change to the endpoint configuration would best improve availability?
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
✓
Configure auto-scaling for the endpoint
Configuring auto-scaling for the SageMaker endpoint allows it to automatically add or remove instances based on traffic load, improving availability during spikes. Option A is incorrect because setting initial instance count to 0 would cause requests to fail until an instance is provisioned, and on-demand invocation does not improve availability. Option B is incorrect because adding a second production variant with the same model does not change the total number of instances; the endpoint would still have only one instance if both variants share the same instance count. Option D is incorrect because changing the instance type to ml.m5.xlarge might provide more resources per instance but does not increase the number of instances; a single instance can still become overwhelmed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Reduce the initial instance count to 0 and use on-demand invocation
Why it's wrong here
Reducing instance count would cause unavailability during spikes.
- ✗
Add a second production variant with the same model
Why it's wrong here
Multiple variants are for A/B testing, not for scaling load.
- ✓
Configure auto-scaling for the endpoint
Why this is correct
Auto-scaling dynamically adds instances during traffic spikes, improving availability.
- ✗
Change the instance type to ml.m5.xlarge
Why it's wrong here
A larger instance may handle more load but still a single point of failure; auto-scaling is better.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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