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CV0-004 Practice Question: Deploying a new web application in a hybrid cloud…
A company is deploying a new web application in a hybrid cloud environment. The application must be able to scale out automatically during peak usage and scale in during low usage. The deployment must also ensure that the application remains available if a single Availability Zone fails. Which deployment strategy should the architect recommend?
⚠ Common exam trap
Candidates often mistakenly believe that a load balancer alone ensures high availability. However, without multiple instances across zones and auto-scaling, the application remains vulnerable to a single zone failure.
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
✓
Create an auto-scaling group spanning multiple Availability Zones.
An auto-scaling group spanning multiple Availability Zones ensures both automatic scaling based on demand and high availability. If one Availability Zone fails, the load balancer distributes traffic to healthy instances in the remaining zones, meeting the requirement for continuous availability during a zone failure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Deploy a cluster of instances in a single Availability Zone with a load balancer.
Why it's wrong here
Single AZ is a single point of failure.
- ✓
Create an auto-scaling group spanning multiple Availability Zones.
Why this is correct
Auto-scaling provides automatic scaling and multi-AZ ensures high availability.
- ✗
Use a single large instance and manually resize during peak periods.
Why it's wrong here
Manual scaling is not automatic and can cause downtime.
- ✗
Deploy a load balancer in front of a single instance.
Why it's wrong here
This provides no scaling or fault tolerance.
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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.