- A
IOMMU for device isolation
Why wrong: IOMMU isolates device access, not memory.
- B
Memory isolation via hardware-enforced page tables
Hypervisors use hardware support (like EPT) to isolate VM memory.
- C
CPU pinning
Why wrong: CPU pinning assigns specific cores but does not isolate memory.
- D
Network segmentation with VLANs
Why wrong: VLANs isolate network traffic, not memory.
Question 784 of 1,000
hardMultiple ChoiceObjective-mapped
CCSP Practice Question: A cloud architect is designing a multi-tenant…
This CCSP practice question tests your understanding of ccsp exam topics. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A cloud architect is designing a multi-tenant environment. To ensure that a tenant's virtual machine cannot access another tenant's memory, which resource isolation technique should be enforced at the hypervisor level?
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
✓
Memory isolation via hardware-enforced page tables
Memory isolation prevents cross-VM memory access; hypervisors enforce this by allocating dedicated memory pages.
Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
IOMMU for device isolation
Why it's wrong here
IOMMU isolates device access, not memory.
- ✓
Memory isolation via hardware-enforced page tables
- ✗
CPU pinning
Why it's wrong here
CPU pinning assigns specific cores but does not isolate memory.
- ✗
Network segmentation with VLANs
Why it's wrong here
VLANs isolate network traffic, not memory.
Common exam traps
Common exam trap: an active trunk can still block the VLAN you need
A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.
Detailed technical explanation
How to think about this question
VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.
KKey Concepts to Remember
- Access ports place end devices into a single VLAN.
- Trunk ports carry multiple VLANs between switches.
- Allowed VLAN lists decide which VLANs can cross a trunk.
- Native VLAN mismatch can create confusing symptoms.
TExam Day Tips
- Use show vlan brief to verify access VLANs.
- Use show interfaces trunk to verify trunk state and allowed VLANs.
- Do not treat every same-VLAN issue as a routing problem.
Key takeaway
A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Real-world example
How this comes up in practice
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
Got this wrong? Here's your next step.
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related CCSP questions on switching, trunking, and access-port configuration.
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FAQ
Questions learners often ask
What does this CCSP question test?
Access ports place end devices into a single VLAN.
What is the correct answer to this question?
The correct answer is: Memory isolation via hardware-enforced page tables — Memory isolation prevents cross-VM memory access; hypervisors enforce this by allocating dedicated memory pages.
What should I do if I get this CCSP question wrong?
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related CCSP questions on switching, trunking, and access-port configuration.
What is the key concept behind this question?
Access ports place end devices into a single VLAN.
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Last reviewed: Jul 4, 2026
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.
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