Question 542 of 750
Wireless Security ProtocolsmediumMultiple ChoiceObjective-mapped

WPA3-Enterprise with 192-bit Encryption for School Wi-Fi

This 220-1202 practice question tests your understanding of wireless security protocols. 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 technician is configuring a new wireless network for a school. The network must support hundreds of student devices simultaneously and provide strong security. The school wants to use a single SSID with individual logins for students. Which security protocol should the technician choose?

Quick Answer

The answer is WPA3-Enterprise with 192-bit encryption. This protocol is the correct choice because it mandates individual authentication via 802.1X, allowing each student to log in with unique credentials on a single SSID, while the 192-bit cryptographic suite provides the strongest available protection against brute-force and dictionary attacks—critical for a high-density school environment. On the CompTIA A+ Core 2 220-1202 exam, this scenario tests your understanding that WPA3-Enterprise is the only option that combines scalable, per-user authentication with government-grade encryption, and a common trap is selecting WPA2-Enterprise, which lacks the same resilience against offline password guessing. Remember the mnemonic “3 for 3”: WPA3-Enterprise with 192-bit encryption gives you three layers of security—individual logins, stronger encryption, and attack resistance.

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

WPA3-Enterprise with 192-bit encryption.

WPA3-Enterprise with 192-bit encryption is the correct choice because it provides the strongest security for a large-scale deployment with individual logins. It uses 802.1X authentication with a RADIUS server, supporting unique credentials for each student, and mandates 192-bit minimum-strength security suite (CNSA Suite) for encryption, offering enhanced protection against brute-force and dictionary attacks compared to WPA2-Enterprise.

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.

  • WPA2-PSK with a long passphrase.

    Why it's wrong here

    Incorrect. WPA2-PSK uses a shared key, not individual logins, and is less secure for large deployments.

  • WPA2-Enterprise with 802.1X and RADIUS.

    Why it's wrong here

    Incorrect. While WPA2-Enterprise supports individual logins, WPA3-Enterprise offers better security and is recommended for new deployments.

  • WPA3-Enterprise with 192-bit encryption.

    Why this is correct

    Correct. WPA3-Enterprise provides individual authentication via 802.1X and uses 192-bit encryption, meeting the school's needs for security and scalability.

    Related concept

    Read the scenario before looking for a memorised answer.

  • WPA3-Personal with SAE.

    Why it's wrong here

    Incorrect. WPA3-Personal uses a shared passphrase, not individual logins, so it does not meet the requirement for per-user authentication.

Common exam traps

Common exam trap: answer the scenario, not the keyword

CompTIA A+ emphasizes the distinction between 'Enterprise' and 'Personal' modes. The trap here is that candidates see 'WPA2-Enterprise with 802.1X and RADIUS' and assume it is sufficient for high-security individual logins, overlooking that WPA3-Enterprise with 192-bit encryption is the only option that combines individual authentication with the strongest mandated encryption suite.

Trap categories for this question

  • Keyword trap

    Incorrect. WPA3-Personal uses a shared passphrase, not individual logins, so it does not meet the requirement for per-user authentication.

Detailed technical explanation

How to think about this question

WPA3-Enterprise 192-bit mode is defined in IEEE 802.11-2016 and mandates the use of Galois/Counter Mode (GCMP-256) for encryption, HMAC-SHA384 for integrity, and ECDHE with a 384-bit elliptic curve for key exchange. This configuration aligns with the Commercial National Security Algorithm (CNSA) Suite, making it suitable for environments requiring government-grade security. In a school setting, the RADIUS server can integrate with Active Directory or LDAP to enforce per-user policies and account for hundreds of devices without shared credentials.

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 junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.

Quick reference

AAA Protocol Comparison

ProtocolPort(s)EncryptionTransportPrimary Use
RADIUS1812 / 1813Password onlyUDPNetwork access control
TACACS+49Full packetTCPDevice administration
Diameter3868Full sessionTCP / SCTPCarrier / mobile networks
802.1XEAP-basedLayer 2Port-based access control

TACACS+ encrypts the entire packet; RADIUS only encrypts the password field — a key exam distinction.

What to study next

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FAQ

Questions learners often ask

What does this 220-1202 question test?

Wireless Security Protocols — This question tests Wireless Security Protocols — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: WPA3-Enterprise with 192-bit encryption. — WPA3-Enterprise with 192-bit encryption is the correct choice because it provides the strongest security for a large-scale deployment with individual logins. It uses 802.1X authentication with a RADIUS server, supporting unique credentials for each student, and mandates 192-bit minimum-strength security suite (CNSA Suite) for encryption, offering enhanced protection against brute-force and dictionary attacks compared to WPA2-Enterprise.

What should I do if I get this 220-1202 question wrong?

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

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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This 220-1202 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 220-1202 exam.