Question 405 of 1,152
Security ArchitecturemediumMultiple ChoiceObjective-mapped

Quick Answer

The correct answer is to use a software-defined perimeter that authenticates each user and device before granting access only to specific applications. This aligns with zero trust principles because a software-defined perimeter for zero trust remote access enforces micro-segmentation, ensuring that even an authenticated endpoint cannot move laterally across the network—it can only reach the explicitly allowed application, not the full LAN. On the Security+ SY0-701 exam, this concept tests your understanding of how zero trust replaces the implicit trust of traditional VPNs with the “never trust, always verify” model. A common trap is choosing a next-generation firewall or multi-factor authentication alone, but those don’t prevent lateral movement after access is granted. Remember the memory tip: SDP = “Specific Destination, not the whole Perimeter.”

SY0-701 Security Architecture Practice Question

This SY0-701 practice question tests your understanding of security architecture. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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's current remote access solution uses a traditional VPN that grants users full network-layer access to the internal LAN once authenticated. The security architect wants to adopt a zero trust architecture to reduce the risk of lateral movement by compromised endpoints. Which of the following implementations best aligns with zero trust principles?

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.

Question 1mediummultiple choice
Read the full VPN explanation →

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

Use a software-defined perimeter that authenticates each user and device before granting access only to specific applications.

Option C is correct because a software-defined perimeter (SDP) implements zero trust by authenticating both the user and device before granting access to specific applications, not the entire network. This prevents lateral movement by ensuring that even after authentication, the endpoint can only reach the allowed application, not the full LAN. This aligns with the zero trust principle of 'never trust, always verify' and micro-segmentation.

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.

  • Implement a next-generation firewall and require all remote traffic to pass through it with strict rules.

    Why it's wrong here

    A next-generation firewall provides deep packet inspection and policy enforcement, but still operates at the network layer. Remote users who authenticate are granted network-level access, which does not align with the zero trust principle of granting access only to specific applications on a per-session basis.

  • Deploy a secure web gateway and require all remote users to browse through a proxy.

    Why it's wrong here

    A secure web gateway (SWG) primarily secures web traffic and can enforce URL filtering and malware inspection. It does not replace the need for application-specific access control and still allows broad network access after authentication, which is contrary to zero trust's micro-segmentation requirement.

  • Use a software-defined perimeter that authenticates each user and device before granting access only to specific applications.

    Why this is correct

    A software-defined perimeter (SDP) or zero trust network access (ZTNA) solution authenticates and authorizes each connection request individually, creating an encrypted tunnel only to the requested application. This prevents lateral movement because the user never receives a network-level address on the internal LAN.

    Clue confirmation

    The clue word "best" in the question point toward this answer.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Enable multi-factor authentication for VPN and implement a VPN concentrator with split tunneling.

    Why it's wrong here

    Multi-factor authentication strengthens the authentication step, but once the MFA challenge is passed, the VPN still grants full network-layer access to the LAN. Split tunneling can even expose the internal network to additional risks. This does not satisfy the zero trust requirement of granular, per-resource access control.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse 'stronger authentication' (MFA) or 'better firewalling' (NGFW) with zero trust, but zero trust requires eliminating implicit trust at the network layer by granting access only to specific applications, not the entire LAN.

Detailed technical explanation

How to think about this question

A software-defined perimeter (SDP) uses a controller to authenticate users and devices, then dynamically creates encrypted tunnels (often using DTLS or mutual TLS) to specific application servers, not the entire network. This is based on the 'black cloud' concept where the network is invisible to unauthorized users, and access is granted via a 'need-to-know' basis per application. In a real-world scenario, if a user's endpoint is compromised with malware, the SDP prevents the malware from scanning or connecting to other internal hosts because no network-layer routing is provided.

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.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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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: Use a software-defined perimeter that authenticates each user and device before granting access only to specific applications. — Option C is correct because a software-defined perimeter (SDP) implements zero trust by authenticating both the user and device before granting access to specific applications, not the entire network. This prevents lateral movement by ensuring that even after authentication, the endpoint can only reach the allowed application, not the full LAN. This aligns with the zero trust principle of 'never trust, always verify' and micro-segmentation.

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.

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Last reviewed: Jun 11, 2026

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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.