CV0-004 Cloud Architecture and Design Practice Question
Which cloud service model provides the customer with the most control over the operating system and applications?
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
✓
IaaS
IaaS provides virtualized computing resources where customers manage OS and above.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
IaaS
Why this is correct
IaaS delivers only virtualised compute, storage and networking, leaving the guest operating system, middleware and applications entirely under customer management. PaaS and SaaS abstract the OS away, so IaaS uniquely satisfies the requirement for maximum control over both operating system and applications.
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FaaS
Why it's wrong here
FaaS abstracts the operating system entirely, so the customer controls only function code and configuration, not the OS or runtime. It is tempting because FaaS suits event-driven, stateless workloads where scaling and patching are delegated, but that delegation is precisely what removes the OS control this scenario demands.
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PaaS
Why it's wrong here
PaaS manages the operating system, runtime patching and middleware, leaving the customer control only over deployed applications and limited configuration. It is tempting for teams wanting to deploy code without OS administration, which is exactly why it cannot satisfy a requirement for maximum OS-level control.
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SaaS
Why it's wrong here
SaaS gives the customer the least control: the provider manages the operating system, runtime, and application. IaaS grants the most control over the OS and applications. SaaS is tempting because it requires minimal administration, and it would be correct when the customer wants a ready-made application without infrastructure management.
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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.