CV0-004 Operations and Support Practice Question
A cloud operations team wants to analyze application performance and identify slow database queries. They need a distributed tracing solution. Which service should they use?
⚠ Common exam trap
CV0-004 often tests the overlap between logging (CloudWatch Logs Insights) and tracing (X-Ray), causing candidates to choose log querying when the question explicitly asks for distributed tracing of slow database queries.
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
✓
AWS X-Ray
AWS X-Ray is a distributed tracing service that traces requests as they travel through microservices, Lambda functions, and database calls, producing a service map and segment timelines. It can pinpoint slow database queries by showing subsegment durations for SQL and NoSQL calls. This makes X-Ray the correct tool for identifying performance bottlenecks across a distributed application.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon Inspector
Why it's wrong here
Amazon Inspector performs automated vulnerability management and network reachability scanning of EC2 instances and container images; it does not trace requests across services or time database queries. It would be chosen for continuous CVE assessment and security findings, not application performance analysis.
- ✗
AWS CloudTrail
Why it's wrong here
AWS CloudTrail records API activity and account-level management events for auditing; it captures no request latency, spans, or query execution timings. It would be the right choice for tracking who called which AWS API and when, not for distributed tracing of application requests.
- ✗
Amazon CloudWatch Logs Insights
Why it's wrong here
CloudWatch Logs Insights queries and aggregates log events already ingested into log groups; it does not instrument requests end-to-end or produce trace spans across services. It suits ad-hoc searching of application logs, not correlating latency across a distributed transaction.
- ✓
AWS X-Ray
Why this is correct
AWS X-Ray traces requests across distributed components, capturing subsegments for downstream calls such as database queries. This satisfies the requirement to identify slow queries by exposing per-query latency within the trace timeline, letting the team pinpoint which database operations delay application performance.
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.