CCSP Cloud Concepts, Architecture, and Design Practice Question
An organization is moving a legacy application to the cloud and wants to minimize changes to the application code. They require full control over the operating system and middleware. Which cloud service model is most appropriate?
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 virtual machines where the customer can install and configure the OS and middleware without modifying the application code.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
PaaS
Why it's wrong here
PaaS abstracts the OS, limiting control.
- ✗
SaaS
Why it's wrong here
SaaS does not provide control over OS or middleware.
- ✓
IaaS
Why this is correct
Correct. IaaS offers full control over OS and middleware.
- ✗
FaaS
Why it's wrong here
FaaS is serverless, requiring code changes.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.