- A
VLAN: Separates broadcast domains logically
VLANs are used to separate broadcast domains at Layer 2.
- B
Subnet: Divides IP networks into smaller segments
Subnetting divides a larger IP network into smaller, manageable subnetworks.
- C
DMZ: Isolates public servers from internal network
A DMZ provides a buffer zone between the internet and internal network.
- D
ACL: Divides IP networks into smaller segments
Why wrong: Incorrect — ACLs filter traffic, not divide IP networks. This describes subnetting.
- E
NAT: Provides secure remote access over public internet
Why wrong: Incorrect — NAT translates private IP addresses to public ones, while VPNs provide secure remote access.
Question 255 of 1,152
SY0-701 Security Architecture Practice Question
This SY0-701 practice question tests your understanding of security architecture. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company is redesigning how systems are separated in its office and data center network. Match each network design element to the scenario it best supports. Use each term once.
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
✓
VLAN: Separates broadcast domains logically
VLANs separate broadcast domains, subnets divide IP networks, ACLs filter traffic, DMZs isolate public servers, VPNs provide secure remote access, and NAT translates private to public IPs.
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.
- ✓
VLAN: Separates broadcast domains logically
Why this is correct
VLANs are used to separate broadcast domains at Layer 2.
Related concept
Access ports place end devices into a single VLAN.
- ✓
Subnet: Divides IP networks into smaller segments
Why this is correct
Subnetting divides a larger IP network into smaller, manageable subnetworks.
Related concept
Access ports place end devices into a single VLAN.
- ✓
DMZ: Isolates public servers from internal network
Why this is correct
A DMZ provides a buffer zone between the internet and internal network.
Related concept
Access ports place end devices into a single VLAN.
- ✗
ACL: Divides IP networks into smaller segments
Why it's wrong here
Incorrect — ACLs filter traffic, not divide IP networks. This describes subnetting.
- ✗
NAT: Provides secure remote access over public internet
Why it's wrong here
Incorrect — NAT translates private IP addresses to public ones, while VPNs provide secure remote access.
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.
Visual reference
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 SY0-701 questions on switching, trunking, and access-port configuration.
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FAQ
Questions learners often ask
What does this SY0-701 question test?
Security Architecture — This question tests Security Architecture — Access ports place end devices into a single VLAN..
What is the correct answer to this question?
The correct answer is: VLAN: Separates broadcast domains logically — VLANs separate broadcast domains, subnets divide IP networks, ACLs filter traffic, DMZs isolate public servers, VPNs provide secure remote access, and NAT translates private to public IPs.
What should I do if I get this SY0-701 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 SY0-701 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: May 17, 2026
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