CCSP Cloud Platform and Infrastructure Security Practice Question
In a cloud environment using KVM, a security auditor wants to ensure that a tenant VM cannot access the memory of another tenant VM on the same physical host. Which resource isolation mechanism is specifically designed to prevent such memory access?
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
✓
Extended Page Tables (EPT)
Memory isolation is enforced by the hypervisor using Extended Page Tables (EPT) or similar technologies. EPT ensures that each VM's memory mappings are isolated, preventing one VM from accessing another's memory.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Seccomp profiles
Why it's wrong here
Incorrect; Seccomp restricts system calls for containers, not VMs.
- ✗
CPU pinning
Why it's wrong here
Incorrect; CPU pinning binds vCPUs to physical cores but does not isolate memory.
- ✓
Extended Page Tables (EPT)
Why this is correct
Correct; EPT provides hardware-assisted memory isolation between VMs.
- ✗
IOMMU
Why it's wrong here
Incorrect; IOMMU isolates device access, not memory.
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JA
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.