CV0-004 Operations and Support Practice Question
A cloud operations team runs a three-tier web application on AWS. During a recent incident, the on-call engineer received hundreds of Amazon CloudWatch alarms within minutes and could not identify the root cause. The team wants to reduce alarm fatigue while still capturing meaningful signals. Which action should the team take FIRST?
⚠ Common exam trap
The trap here is assuming alarm fatigue is solved by slowing evaluation periods or batching notifications, when the actual mechanism is correlating multiple alarms into a single composite condition.
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
✓
Create composite alarms that combine related metric and state alarms using AND/OR logic, and route only the composite alarm to the notification topic.
Composite alarms exist specifically to reduce noise by evaluating multiple child alarms with Boolean operators and firing a single notification only when the combined condition is met. This preserves granular child alarms for troubleshooting while giving on-call engineers one correlated, actionable signal, which is the fastest way to reduce alarm fatigue without losing observability.
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 each alarm's evaluation period from 1 minute to 60 minutes so that fewer state transitions occur during an incident.
Why it's wrong here
Lengthening the evaluation period reduces the frequency of state changes but does not reduce the number of distinct alarms that fire. Each of the hundreds of alarms still transitions to ALARM during a real incident, so the notification volume remains high and the root cause is still obscured by unrelated alerts.
- ✗
Delete all metric alarms and rely solely on AWS Health Dashboard notifications for operational awareness.
Why it's wrong here
AWS Health Dashboard reports service-level events affecting AWS itself, not the health of the customer's own resources such as CPU, latency, or error rates. Removing metric alarms eliminates the ability to detect application-level degradation, which is the exact signal the team needs to investigate incidents.
- ✗
Configure the SNS topic to buffer notifications and deliver them as a single daily digest email to the operations team.
Why it's wrong here
SNS does not provide a built-in daily digest capability for CloudWatch alarm notifications; it delivers messages immediately to subscribers. Even if implemented externally, batching alerts into a daily digest delays incident response and defeats the purpose of real-time monitoring for a production three-tier application.
- ✓
Create composite alarms that combine related metric and state alarms using AND/OR logic, and route only the composite alarm to the notification topic.
Why this is correct
Composite alarms evaluate the state of multiple child alarms and fire only when the Boolean expression is true, which directly suppresses the storm of individual notifications. Routing only the composite alarm to the SNS topic means the on-call engineer receives one actionable alert that represents the correlated condition, preserving the underlying child alarms for diagnostics.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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.