SOA-C02 Monitoring, Logging, and Remediation Practice Question
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A SysOps administrator notices that an Amazon EC2 instance's CPU utilization is consistently above 90% during business hours. The instance is part of an Auto Scaling group with a simple scaling policy based on average CPU utilization. However, the Auto Scaling group is not launching new instances. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The scaling policy is in a cooldown period after a previous scaling activity.
The simple scaling policy in Auto Scaling has a cooldown period (default 300 seconds) that prevents the group from launching or terminating instances immediately after a previous scaling activity. If the policy triggered a scale-out event recently, the cooldown period is still active, so even though CPU utilization remains above 90%, no new instances are launched until the cooldown expires. This is the most likely cause because the cooldown is designed to stabilize metrics and avoid thrashing.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
The scaling policy is in a cooldown period after a previous scaling activity.
Why this is correct
Cooldown prevents additional scaling actions until it expires.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The Auto Scaling group has a minimum size equal to the current number of instances.
Why it's wrong here
Min size would not prevent scaling out if desired capacity is higher.
✗
The Auto Scaling group has a scheduled scaling action that is overriding the dynamic policy.
Why it's wrong here
Scheduled actions do not override dynamic policies; they run at specific times.
✗
The instance is not healthy and is being terminated by the Auto Scaling group.
Why it's wrong here
The instance is running and CPU is high, so it is likely healthy.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume high CPU utilization always triggers a scale-out immediately, forgetting that simple scaling policies enforce a cooldown period that can delay subsequent scaling actions, even when the metric remains elevated.
Detailed technical explanation
How to think about this question
The cooldown period for simple scaling policies is defined in seconds (default 300) and applies after any scaling activity completes, preventing additional scaling actions until the period ends. This is distinct from step scaling policies, which have a cooldown that can be customized per step adjustment. In real-world scenarios, if the cooldown is set too long (e.g., 600 seconds), sustained high CPU utilization can lead to performance degradation because the group cannot react quickly enough, forcing administrators to use step scaling or target tracking policies instead.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Monitoring, Logging, and Remediation — This question tests Monitoring, Logging, and Remediation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The scaling policy is in a cooldown period after a previous scaling activity. — The simple scaling policy in Auto Scaling has a cooldown period (default 300 seconds) that prevents the group from launching or terminating instances immediately after a previous scaling activity. If the policy triggered a scale-out event recently, the cooldown period is still active, so even though CPU utilization remains above 90%, no new instances are launched until the cooldown expires. This is the most likely cause because the cooldown is designed to stabilize metrics and avoid thrashing.
What should I do if I get this SOA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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