hardMultiple ChoiceObjective-mapped
CV0-004 Practice Question: Moving a legacy monolithic application to the…
A company is moving a legacy monolithic application to the cloud. The application has interdependencies that make it difficult to refactor. The architect needs to minimize changes while gaining cloud benefits like elasticity and pay-as-you-go. Which migration strategy is BEST?
⚠ Common exam trap
CompTIA often tests the misconception that 'cloud-native benefits require refactoring,' but the trap here is that rehosting still provides elasticity and pay-as-you-go via infrastructure-level scaling, even without application changes.
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
✓
Rehost (Lift and shift)
Rehosting (lift and shift) is the best strategy because it moves the monolithic application to the cloud with minimal changes, preserving existing interdependencies. This allows the company to immediately gain cloud benefits like elasticity and pay-as-you-go pricing without refactoring the tightly coupled codebase. The application runs on cloud infrastructure (e.g., EC2 instances) as-is, leveraging auto-scaling and resource optimization.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Retire
Why it's wrong here
Retire is for decommissioning applications, not migrating.
- ✗
Repurchase
Why it's wrong here
Repurchase means switching to a SaaS product, which is a major change.
- ✗
Refactor / Re-architect
Why it's wrong here
Refactoring involves significant changes to the application architecture, contrary to minimizing changes.
- ✓
Rehost (Lift and shift)
Why this is correct
Rehost moves the existing application to the cloud with minimal changes, meeting the requirement.
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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.