CV0-004 Operations and Support Practice Question
A cloud engineer is configuring an auto-scaling policy for a batch processing application that takes about 10 minutes to initialize before it can start processing jobs. To avoid premature termination of instances that have just started, what should the engineer configure?
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
✓
Use a lifecycle hook to put the instance in a 'wait' state until initialization is complete
A lifecycle hook can put instances in a pending state until they complete initialization. Cooldown periods prevent scaling actions but do not prevent termination of new instances.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disable scale-in for the first 10 minutes using a scheduled action
Why it's wrong here
Not a native feature; lifecycle hooks are the correct approach.
- ✓
Use a lifecycle hook to put the instance in a 'wait' state until initialization is complete
Why this is correct
Lifecycle hooks allow you to perform custom actions and control the instance's lifecycle, preventing early termination.
- ✗
Set the health check grace period to 600 seconds
Why it's wrong here
Health check grace period delays health checks, but does not prevent scale-in termination.
- ✗
Increase the cooldown period to 600 seconds
Why it's wrong here
Cooldown prevents new scaling activities, but does not protect instances from being terminated during scale-in.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.