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SSCP Practice Question: Encryption protocols should be used to secure…
Which of the following encryption protocols should be used to secure wireless traffic in an enterprise environment?
⚠ Common exam trap
ISC2 often tests the distinction between 'PSK' and 'Enterprise' modes, trapping candidates who see 'WPA3' and assume it is always best, but the question's 'enterprise environment' requirement specifically demands the Enterprise mode (with 802.1X/RADIUS), not the PSK variant, even though both use SAE.
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
WPA3-Enterprise is the correct choice because it provides the highest level of security for enterprise wireless networks, incorporating mandatory 192-bit Suite B cryptographic suites (AES-256 in GCM mode, HMAC-SHA384, and ECDHE key exchange) to protect against offline dictionary attacks, forward secrecy, and brute-force attempts. It also uses Simultaneous Authentication of Equals (SAE) for the handshake, replacing the vulnerable 4-way handshake of WPA2, and supports 802.1X/EAP authentication with RADIUS for centralized user management.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
WPA3-Enterprise
Why this is correct
Provides the strongest security with 802.1X authentication and GCMP-256 encryption.
- ✗
WEP
Why it's wrong here
WEP is easily cracked.
- ✗
WPA3-PSK
Why it's wrong here
Suitable for small offices, not enterprise with many users.
- ✗
WPA2-PSK
Why it's wrong here
Shared key is vulnerable to brute force.
- ✗
WPA2-Enterprise
Why it's wrong here
Strong, but WPA3-Enterprise is more current and secure.
Quick reference
AAA Protocol Comparison
| Protocol | Port(s) | Encryption | Transport | Primary Use |
|---|---|---|---|---|
| RADIUS | 1812 / 1813 | Password only | UDP | Network access control |
| TACACS+ | 49 | Full packet | TCP | Device administration |
| Diameter | 3868 | Full session | TCP / SCTP | Carrier / mobile networks |
| 802.1X | — | EAP-based | Layer 2 | Port-based access control |
TACACS+ encrypts the entire packet; RADIUS only encrypts the password field — a key exam distinction.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SSCP practice question is part of Courseiva's free ISC2 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 SSCP exam.