CAS-004 Security Architecture Practice Question
In a cloud shared responsibility model, which of the following is typically the customer's responsibility for IaaS?
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
✓
Guest OS patch management
In IaaS, the customer manages the guest OS, applications, and data, while the cloud provider secures the physical hosts and hypervisor.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Hypervisor security
Why it's wrong here
Hypervisor security is the provider's responsibility.
- ✓
Guest OS patch management
Why this is correct
The customer is responsible for securing the guest OS and applications.
- ✗
Hardware maintenance
Why it's wrong here
Hardware maintenance is the provider's responsibility.
- ✗
Physical security of data centers
Why it's wrong here
Physical security is the provider's responsibility.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 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 CAS-005 exam.