CV0-004 Operations and Support Practice Question
A cloud administrator needs to centralize logs from multiple AWS services, including VPC flow logs and application logs, to enable searching and querying. Which solution should be used?
⚠ Common exam trap
CV0-004 often tests the confusion between CloudTrail (API audit), AWS Config (configuration compliance), and CloudWatch Logs (operational log aggregation and search), tempting candidates to pick CloudTrail for log centralization.
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
✓
Amazon CloudWatch Logs
Amazon CloudWatch Logs is the native centralized log management service that ingests logs from EC2, Lambda, VPC Flow Logs, CloudTrail, and application sources, and provides Logs Insights for searching and querying. It supports metric filters, alarms, and subscription filters for downstream processing, making it the correct choice for centralized search and query across multiple AWS services.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS CloudTrail
Why it's wrong here
CloudTrail records API activity and management events, not VPC flow logs or application output, so those log types never reach a queryable store. It is tempting because it is AWS's native auditing service, and would be correct when the requirement is tracking who called which API and when.
- ✗
Amazon S3 with Athena
Why it's wrong here
S3 with Athena stores and queries data but provides no ingestion pipeline for VPC flow logs or application logs, so centralisation must be built manually. It is tempting because Athena queries S3 directly, and would be correct when logs already land in S3 and need ad-hoc SQL analysis.
- ✗
AWS Config
Why it's wrong here
AWS Config evaluates resource configurations against rules and records configuration changes; it does not ingest VPC flow logs or application logs for searching. It is tempting because it centralises compliance data, and would be correct when assessing whether resources drifted from a desired configuration state.
- ✓
Amazon CloudWatch Logs
Why this is correct
Amazon CloudWatch Logs ingests VPC flow logs and application logs into log groups, then supports CloudWatch Logs Insights for searching and querying across them. This satisfies the centralisation requirement directly, since both log types converge in one service without additional infrastructure, unlike S3-based aggregation that lacks native querying.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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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.