SOA-C02 Monitoring, Logging, and Remediation Practice Question
A SysOps admin is troubleshooting an Auto Scaling group that fails to launch instances. The group uses a launch template with an Amazon Linux 2 AMI. The admin reviews the scaling activity history and sees: 'Launching a new EC2 instance. Status: Failed. Description: Your spot request price is lower than the minimum required Spot price.' Which change should the admin make to resolve the issue?
⚠ Common exam trap
Candidates often think the error is about insufficient capacity or regional issues, rather than recognizing it as a direct price mismatch that requires adjusting the maximum bid in the launch template.
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
✓
Increase the maximum price for the Spot request in the launch template
The error message indicates that the Spot Instance request failed because the maximum price specified in the launch template is below the current Spot market price. By increasing the maximum price in the launch template (Option A), you allow the Spot request to meet or exceed the minimum required Spot price, enabling the Auto Scaling group to successfully launch instances. This is the direct fix for the price-related failure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Increase the maximum price for the Spot request in the launch template
Why this is correct
Increasing the maximum price for the Spot request in the launch template directly addresses the root cause: the Auto Scaling group cannot launch Spot Instances when the current Spot market price exceeds the bid price in the template. By raising the maximum price to at most the On-Demand price, you allow the Spot request to succeed, and you still only pay the current Spot market price, not the maximum. This is the recommended fix because it preserves the cost savings of Spot while maintaining capacity.
- ✗
Modify the Auto Scaling group to use On-Demand instances instead of Spot
Why it's wrong here
Modifying the Auto Scaling group to use On-Demand instances would indeed eliminate the Spot launch failure, because On-Demand capacity is always available at a fixed price. However, this is a cost-inefficient workaround that discards the primary benefit of Spot pricing, potentially tripling or quadrupling compute costs. The underlying problem is not the instance type but the insufficient Spot bid price, so switching to On-Demand is an overreaction rather than a targeted solution.
- ✗
Change the Auto Scaling group to a different AWS Region
Why it's wrong here
Moving the Auto Scaling group to a different AWS Region could change the Spot price dynamics, since Spot prices vary by Region and Availability Zone capacity pools. However, this approach is disruptive and rarely a first step: it requires re-provisioning all associated resources, such as VPCs, subnets, load balancers, and data storage, and may introduce latency or compliance issues. The correct action is to adjust the Spot price cap in the existing launch template, which resolves the issue without re-architecting the environment.
- ✗
Increase the desired capacity of the Auto Scaling group
Why it's wrong here
Increasing the desired capacity of the Auto Scaling group will not resolve the Spot pricing problem, because the desired capacity only defines the target number of instances the group aims to maintain. If instances cannot be launched due to the Spot bid being below the market price, raising the desired capacity simply increases the number of failed launch attempts or keeps the group perpetually below capacity. This change could also strain other resources and does not alter the launch template's pricing parameters, leaving the original failure mode unchanged.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SOA-C02 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 SOA-C02 exam.