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CV0-004 Practice Question: A DevOps team sets up a CI/CD pipeline for a…
A DevOps team sets up a CI/CD pipeline for a containerized application on Kubernetes. They want to test a new version with a small subset of users before full rollout. Which deployment method should they use?
⚠ Common exam trap
CompTIA often tests the distinction between canary and rolling update by implying that rolling updates can also target a subset of users, but rolling updates replace pods gradually across the entire cluster without user-based traffic splitting.
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
✓
Canary
A canary deployment releases the new version to a small subset of users (e.g., 5-10% of traffic) while the rest continue using the stable version. This allows the team to monitor performance, errors, and user feedback before gradually increasing the rollout. Kubernetes supports canary deployments natively through techniques like multiple Deployments with shared labels and service mesh traffic splitting (e.g., Istio or Linkerd).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Canary
Why this is correct
Canary sends a small percentage of traffic to the new version for testing.
- ✗
Recreate
Why it's wrong here
Recreate kills all existing pods before starting new ones, causing downtime.
- ✗
Rolling update
Why it's wrong here
Rolling update replaces pods incrementally but doesn't provide a canary subset.
- ✗
Blue/green
Why it's wrong here
Blue/green maintains two environments and switches traffic all at once.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.