CV0-004 Cloud Architecture and Design Practice Question
A cloud architect is designing a highly available web application on AWS. The application must continue serving traffic even if an entire AWS Availability Zone fails. Which architecture should the architect implement?
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
✓
Active-active across two Availability Zones
Active-active architecture across multiple Availability Zones ensures that if one zone fails, traffic is routed to the remaining healthy zones, providing high availability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Active-passive in a single Availability Zone
Why it's wrong here
Active-passive in one zone cannot survive a zone failure.
- ✓
Active-active across two Availability Zones
Why this is correct
Active-active across zones allows continued service if one zone fails.
- ✗
Vertical scaling on a single instance
Why it's wrong here
Vertical scaling does not provide redundancy for zone failure.
- ✗
Active-passive across two regions
Why it's wrong here
Active-passive across regions can provide failover, but is not necessary for zone failure and may be overkill.
Go deeper
Related to this question
About these practice questions
One of 977 original CV0-004 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.