CV0-004 Cloud Architecture and Design Practice Question
A company is experiencing increased traffic to its web application. They want to handle the load by adding more web server instances behind a load balancer. This approach is known as:
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
✓
Horizontal scaling
Horizontal scaling (scaling out) adds more instances to distribute the load, as opposed to vertical scaling which adds resources to a single instance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Stateless design
Why it's wrong here
Stateless design is an architectural principle that facilitates horizontal scaling but is not the scaling method.
- ✓
Horizontal scaling
Why this is correct
Horizontal scaling adds more instances to handle increased load.
- ✗
Auto-scaling
Why it's wrong here
Auto-scaling is a mechanism that can perform horizontal scaling automatically, but the term itself describes the process of adding instances.
- ✗
Vertical scaling
Why it's wrong here
Vertical scaling increases resources of an existing instance.
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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.