CV0-004 Cloud Architecture and Design Practice Question
An organization is designing a VPC with public and private subnets. The web servers must be accessible from the internet, but database servers must not. The architecture also requires high availability across two Availability Zones. What is the minimum number of public subnets and private subnets needed?
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
✓
Two public, two private
For high availability across two AZs, you need at least two public subnets (one per AZ) and two private subnets (one per AZ).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Two public, two private
Why this is correct
Each AZ gets a public and a private subnet.
- ✗
One public, two private
Why it's wrong here
Public subnets need two AZs for web servers.
- ✗
Two public, one private
Why it's wrong here
Private subnets should also be in two AZs for redundancy.
- ✗
One public, one private
Why it's wrong here
This provides no AZ redundancy.
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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.