CV0-004 Cloud Architecture and Design Practice Question
A cloud architect is reviewing costs for a production environment. The environment uses a mix of EC2 instances and RDS databases. Which THREE of the following are effective cost optimization strategies?
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
✓
Use reserved instances for baseline capacity
Reserved instances provide discounts for steady-state usage. Storage lifecycle policies move data to cheaper tiers over time. Rightsizing ensures resources match workload requirements, reducing waste. Using all SSD even for cold data is expensive. Running instances 24/7 when not needed increases costs unnecessarily.
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 reserved instances for baseline capacity
Why this is correct
Reserved instances offer significant discounts for predictable workloads.
- ✓
Implement storage lifecycle policies to move old data to cheaper storage tiers
Why this is correct
Lifecycle policies automate data migration to lower-cost storage.
- ✗
Use all SSD storage for all data to maximize performance
Why it's wrong here
SSD is more expensive; not all data needs high performance.
- ✓
Rightsize instances based on actual utilization metrics
Why this is correct
Rightsizing eliminates over-provisioning and reduces costs.
- ✗
Run all instances 24/7 to ensure availability
Why it's wrong here
Running instances when not needed wastes money; use auto-scaling or scheduled shutdowns.
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.