hardMultiple SelectObjective-mapped
CV0-004 Practice Question: Which THREE of the following are key…
Which THREE of the following are key considerations when designing a cloud-native application for high availability? (Select exactly three.)
⚠ Common exam trap
CompTIA often tests the misconception that high availability requires synchronous replication or multithreading, when in fact these can introduce tight coupling and single points of failure; the trap is confusing performance optimization with architectural resilience.
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
✓
Implement loose coupling between services
Loose coupling between services, typically achieved via asynchronous messaging or API gateways, ensures that the failure of one service does not cascade to others, which is fundamental for high availability in cloud-native architectures. This design pattern allows individual services to be updated, scaled, or fail independently, maintaining overall system resilience.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use multithreading for all components
Why it's wrong here
Multithreading improves performance but not availability; it can introduce concurrency bugs.
- ✗
Use synchronous replication for databases
Why it's wrong here
Synchronous replication may introduce latency and is not always necessary for HA.
- ✓
Implement loose coupling between services
Why this is correct
Loose coupling (e.g., queues, APIs) isolates failures and improves resilience.
- ✓
Use stateless application components
Why this is correct
Stateless components can be scaled and replaced easily, improving availability.
- ✓
Design for horizontal scaling using auto-scaling groups
Why this is correct
Autoscaling ensures enough capacity to handle traffic, maintaining availability.
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.