- A
Move the servers into a single larger subnet so internal routing is simplified
Why wrong: This would make segmentation weaker, not stronger. Combining systems into a larger subnet usually expands broadcast scope and makes it easier for an attacker to move laterally once inside.
- B
Implement microsegmentation with host-based or distributed firewall rules between workloads
Microsegmentation is the best fit when the organization cannot redesign the network but still needs to isolate workloads more tightly. Host-based or distributed firewall rules can restrict east-west traffic between individual servers, even when they share the same VLAN. That reduces lateral movement far better than coarse VLAN-only separation and does not require renumbering the environment.
- C
Place the servers behind a network address translation device to hide their IP addresses
Why wrong: NAT can hide addressing details, but it does not provide meaningful internal segmentation or limit east-west access between the workloads. An attacker who compromises one host may still reach the other if no filtering exists.
- D
Rely on password rotation and MFA for administrative logins only
Why wrong: Authentication hardening helps protect accounts, but it does not isolate compromised workloads from each other. The question is about limiting lateral movement inside the environment, which requires traffic enforcement between systems.
Quick Answer
The answer is microsegmentation using host-based or distributed firewall rules between workloads. This is correct because microsegmentation enforces zero-trust east-west traffic controls at the workload level, allowing security teams to restrict communication between the payroll and HR servers to only what is necessary—without changing the VLAN, subnet, or adding physical firewalls. By applying granular firewall policies directly on the hypervisor or host, lateral movement is effectively blocked even when both workloads share the same Layer 2 broadcast domain. On the Security+ SY0-701 exam, this scenario tests your understanding of how zero-trust principles apply to network segmentation when traditional redesign is impossible; a common trap is assuming you must use VLANs or physical firewalls, but the key is that microsegmentation operates logically, not physically. Memory tip: think “micro = granular, macro = VLAN”—microsegmentation lets you slice east-west traffic without touching the network fabric.
SY0-701 Security Architecture Practice Question
This SY0-701 practice question tests your understanding of security architecture. 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 company runs payroll and HR application servers on the same VLAN because a redesign is not possible this quarter. Security wants to reduce lateral movement if one workload is compromised, but the team cannot renumber the environment or add new physical firewalls. Which control best fits the requirement?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Implement microsegmentation with host-based or distributed firewall rules between workloads
Microsegmentation using host-based or distributed firewall rules (e.g., via a hypervisor firewall or host firewall policies) allows the security team to enforce zero-trust east-west traffic controls between the payroll and HR servers without changing the VLAN, subnet, or adding physical firewalls. This directly reduces lateral movement by restricting communication to only what is necessary, even though both workloads share the same Layer 2 broadcast domain.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Move the servers into a single larger subnet so internal routing is simplified
Why it's wrong here
This would make segmentation weaker, not stronger. Combining systems into a larger subnet usually expands broadcast scope and makes it easier for an attacker to move laterally once inside.
- ✓
Implement microsegmentation with host-based or distributed firewall rules between workloads
Why this is correct
Microsegmentation is the best fit when the organization cannot redesign the network but still needs to isolate workloads more tightly. Host-based or distributed firewall rules can restrict east-west traffic between individual servers, even when they share the same VLAN. That reduces lateral movement far better than coarse VLAN-only separation and does not require renumbering the environment.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Place the servers behind a network address translation device to hide their IP addresses
Why it's wrong here
NAT can hide addressing details, but it does not provide meaningful internal segmentation or limit east-west access between the workloads. An attacker who compromises one host may still reach the other if no filtering exists.
- ✗
Rely on password rotation and MFA for administrative logins only
Why it's wrong here
Authentication hardening helps protect accounts, but it does not isolate compromised workloads from each other. The question is about limiting lateral movement inside the environment, which requires traffic enforcement between systems.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume VLAN segmentation is the only way to isolate workloads, but the question explicitly prevents renumbering or adding firewalls, so the correct answer leverages host-based or distributed firewall rules to achieve microsegmentation without changing the network topology.
Detailed technical explanation
How to think about this question
Microsegmentation can be implemented using a host-based firewall (e.g., Windows Defender Firewall with IPsec rules or iptables on Linux) or a distributed firewall integrated with the hypervisor (e.g., VMware NSX Distributed Firewall or Microsoft Azure vNIC network security groups). These solutions enforce stateful filtering at the virtual NIC or host OS level, allowing rules such as 'allow HR server to talk to payroll server only on TCP port 1433' while blocking all other traffic, even within the same VLAN. In a real-world scenario, this is critical for compliance frameworks like PCI DSS Requirement 7, which mandates restricting access between cardholder data environments and other systems.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. 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.
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FAQ
Questions learners often ask
What does this SY0-701 question test?
Security Architecture — This question tests Security Architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Implement microsegmentation with host-based or distributed firewall rules between workloads — Microsegmentation using host-based or distributed firewall rules (e.g., via a hypervisor firewall or host firewall policies) allows the security team to enforce zero-trust east-west traffic controls between the payroll and HR servers without changing the VLAN, subnet, or adding physical firewalls. This directly reduces lateral movement by restricting communication to only what is necessary, even though both workloads share the same Layer 2 broadcast domain.
What should I do if I get this SY0-701 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
This SY0-701 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 SY0-701 exam.
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