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MLA-C01 Practice Question: A team uses AWS Auto Scaling for a SageMaker…
A team uses AWS Auto Scaling for a SageMaker real-time endpoint. They notice that when scaling in, the latest instance is always terminated first, causing disruption to recent requests. How can they configure the scaling policy to terminate the oldest instance first?
⚠ Common exam trap
Test-takers frequently assume the default termination policy is 'OldestInstance' or that lifecycle hooks can influence instance selection, when in fact the default is 'NewestInstance' and lifecycle hooks only add a delay, not a selection rule.
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 the termination policy as 'OldestInstance'
AWS Auto Scaling for SageMaker endpoints supports a termination policy of 'OldestInstance', which explicitly instructs the scaling process to terminate the instance that has been running the longest. By default, Auto Scaling terminates the newest instance (the default termination policy), which can disrupt recent requests. Configuring the termination policy to 'OldestInstance' ensures that the oldest, most stable instance is removed first, minimizing disruption to in-flight requests.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure the termination policy as 'OldestInstance'
Why this is correct
You can set the termination policy to 'OldestInstance' in the scaling policy configuration.
- ✗
No action needed; this is the default behavior
Why it's wrong here
The default termination policy may not be 'OldestInstance'; it can vary.
- ✗
Use lifecycle hooks
Why it's wrong here
Lifecycle hooks are for EC2 Auto Scaling, not for SageMaker endpoints.
- ✗
Use AWS CloudFormation to manage the endpoint
Why it's wrong here
CloudFormation does not control termination order.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MLA-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 MLA-C01 exam.