- A
Use a single WPA2-Personal passphrase and email it to all employees.
Why wrong: A shared passphrase cannot validate device identity or enforce device compliance requirements.
- B
Deploy 802.1X with certificate-based authentication and network access control posture checks.
802.1X with certificates verifies device identity, and NAC posture assessment can block noncompliant endpoints.
- C
Allow any device to join and rely on antivirus scans after users log in.
Why wrong: Post-login scans are reactive and do not prevent noncompliant devices from joining the network.
- D
Use MAC address filtering and a captive portal for all internal Wi-Fi users.
Why wrong: MAC filtering is weak against spoofing and captive portals do not provide strong device authentication or compliance enforcement.
Quick Answer
The answer is to deploy 802.1X with certificate-based authentication and network access control posture checks. This approach satisfies both goals because 802.1X certificate authentication ensures that only devices possessing a valid, trusted certificate can connect to the Wi-Fi, eliminating the security risks of shared passwords. The NAC posture check then evaluates each authenticated device against baseline requirements like disk encryption and current endpoint protection, dynamically denying network access to any system that fails compliance. On the Security+ SY0-701 exam, this scenario tests your understanding of how 802.1X and NAC work together as complementary layers of network security, rather than as standalone solutions. A common trap is to choose only certificate-based authentication, forgetting that posture assessment is required for conditional access. Remember the mnemonic "Cert then Check"—first validate the device identity with a certificate, then check its security posture before granting full access.
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 wants all corporate laptops to authenticate to Wi-Fi using device certificates instead of shared passwords. It also wants to deny network access to systems that do not meet the baseline requirement for disk encryption and current endpoint protection. Which approach best satisfies both goals?
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
Deploy 802.1X with certificate-based authentication and network access control posture checks.
802.1X with certificate-based authentication ensures that only devices with valid certificates can authenticate to the Wi-Fi network, eliminating reliance on shared passwords. Network access control (NAC) posture checks then evaluate each device against baseline requirements (e.g., disk encryption, current endpoint protection) and deny access to non-compliant systems. This combination directly satisfies both goals of certificate-only authentication and conditional access based on security posture.
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.
- ✗
Use a single WPA2-Personal passphrase and email it to all employees.
Why it's wrong here
A shared passphrase cannot validate device identity or enforce device compliance requirements.
- ✓
Deploy 802.1X with certificate-based authentication and network access control posture checks.
Why this is correct
802.1X with certificates verifies device identity, and NAC posture assessment can block noncompliant endpoints.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Allow any device to join and rely on antivirus scans after users log in.
Why it's wrong here
Post-login scans are reactive and do not prevent noncompliant devices from joining the network.
- ✗
Use MAC address filtering and a captive portal for all internal Wi-Fi users.
Why it's wrong here
MAC filtering is weak against spoofing and captive portals do not provide strong device authentication or compliance enforcement.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 802.1X with simple certificate authentication and overlook the NAC posture check component, assuming that certificate-based authentication alone meets the baseline requirement, but the question explicitly requires denying access to non-compliant systems, which only NAC can enforce.
Trap categories for this question
Keyword trap
A shared passphrase cannot validate device identity or enforce device compliance requirements.
Detailed technical explanation
How to think about this question
802.1X uses EAP-TLS (or PEAP with certificates) to authenticate devices via a RADIUS server, where the device presents a client certificate for mutual authentication. NAC posture checks often leverage protocols like RADIUS CoA (Change of Authorization) or SNMP to enforce VLAN assignment or ACLs based on endpoint compliance, such as verifying that BitLocker is enabled and antivirus definitions are current via a posture agent or NAP (Network Access Protection) integration.
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 developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
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: Deploy 802.1X with certificate-based authentication and network access control posture checks. — 802.1X with certificate-based authentication ensures that only devices with valid certificates can authenticate to the Wi-Fi network, eliminating reliance on shared passwords. Network access control (NAC) posture checks then evaluate each device against baseline requirements (e.g., disk encryption, current endpoint protection) and deny access to non-compliant systems. This combination directly satisfies both goals of certificate-only authentication and conditional access based on security posture.
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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