CV0-004 Cloud Architecture and Design Practice Question
A company wants to migrate its on-premises workloads to the cloud and requires full control over the operating system, installed software, and security configurations. Which cloud service model should they choose?
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 the customer manages the OS and above, giving full control.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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FaaS
Why it's wrong here
FaaS runs event-triggered functions on a provider-managed runtime, so no operating system or installed-software control is exposed to the customer. It suits intermittent, event-driven processing, not lifting and shifting workloads that need full OS-level configuration.
- ✓
IaaS
Why this is correct
IaaS provides the raw compute, storage and networking primitives while leaving the guest operating system, middleware and installed software entirely under the customer's administration. That satisfies the stated requirement for full control over the OS, software and security configurations, which PaaS and SaaS abstract away.
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PaaS
Why it's wrong here
PaaS manages the OS, runtime and middleware, leaving only application code and data to the customer, so OS and security-configuration control is absent. It suits developers building on supported runtimes, not workloads needing full control of the underlying platform.
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SaaS
Why it's wrong here
SaaS delivers finished applications where the provider manages the OS, runtime and patching, so the customer controls only configuration and data — none of the required OS or software control. It suits standardised workloads such as email or CRM, where that loss of control is acceptable.
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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.