CV0-004 Deployment Practice Question
A company uses Azure DevOps to deploy a critical application. They need to implement a deployment strategy that ensures zero downtime by directing all traffic to the new environment after validation, while keeping the old environment as a fallback. Which deployment strategy should be configured in the Azure Pipelines release pipeline?
⚠ Common exam trap
CompTIA often tests the distinction between canary and blue/green by emphasizing 'gradual traffic shift' versus 'instant full cutover with fallback,' leading candidates to confuse canary's incremental rollout with the zero-downtime fallback requirement.
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
✓
Blue/green deployment
Blue/green deployment is the correct strategy because it maintains two identical environments (blue and green) and switches the router or load balancer to direct all traffic to the new (green) environment only after validation is complete. The old (blue) environment remains untouched and can serve as an immediate fallback if issues arise, ensuring zero downtime during the cutover.
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 deployment
Why it's wrong here
Shifts traffic gradually, not all at once.
- ✗
In-place deployment
Why it's wrong here
Replaces application on same instances, no fallback.
- ✓
Blue/green deployment
Why this is correct
Switches traffic from blue to green after validation, keeping blue as fallback.
- ✗
Rolling deployment
Why it's wrong here
Replaces instances gradually without full switch.
Visual reference
Go deeper
Related to this question
About these practice questions
Courseiva writes every CV0-004 question from scratch — 977 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
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.