CV0-004 Cloud Architecture and Design Practice Question
A company is running a stateless web application on a public cloud. They expect traffic to spike during certain hours. Which scaling strategy would be most cost-effective and efficient?
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 using auto-scaling groups based on CPU utilization
Horizontal scaling (adding more instances) combined with auto-scaling based on metrics like CPU usage allows the application to handle spikes cost-effectively without over-provisioning.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Using a larger instance type and scheduling scaling actions
Why it's wrong here
Scheduled scaling may not adapt to unexpected traffic patterns.
- ✗
Pre-provisioning double capacity permanently
Why it's wrong here
This wastes resources during low traffic periods.
- ✓
Horizontal scaling using auto-scaling groups based on CPU utilization
Why this is correct
Auto-scaling adds or removes instances automatically based on demand, optimizing cost and performance.
- ✗
Vertical scaling with manual adjustments before anticipated spikes
Why it's wrong here
Vertical scaling has limits and manual intervention is less efficient.
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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.