easyMultiple ChoiceObjective-mapped
CAS-004 Practice Question: Is deploying a new wireless network for employees…
An organization is deploying a new wireless network for employees and guests. The security policy requires that all wireless traffic be encrypted using AES-CCMP, and that clients must authenticate using 802.1X with EAP-TLS. Which of the following wireless security standards should be implemented?
⚠ Common exam trap
Candidates often confuse WPA3-Enterprise with WPA2-Enterprise, assuming newer is always better, but the question explicitly requires AES-CCMP and 802.1X with EAP-TLS, which are core to WPA2-Enterprise, while WPA3-Enterprise introduces optional stronger ciphers (GCMP-256) and a different handshake (SAE), making it not the direct match for the given requirements.
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
✓
WPA2-Enterprise
WPA2-Enterprise (D) is the correct choice because it supports AES-CCMP encryption and 802.1X authentication with EAP-TLS. WPA2-Enterprise uses a RADIUS server for centralized authentication, allowing per-user credentials via EAP methods, and mandates CCMP (AES-based) for data confidentiality and integrity, meeting all stated security policy requirements.
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-Personal
Why it's wrong here
WPA2-Personal uses PSK, not 802.1X.
- ✗
WEP
Why it's wrong here
WEP is insecure and does not support AES or 802.1X.
- ✗
WPA3-Enterprise
Why it's wrong here
WPA3-Enterprise uses GCMP-256, not AES-CCMP.
- ✓
WPA2-Enterprise
Why this is correct
WPA2-Enterprise with AES-CCMP and 802.1X meets all requirements.
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 CAS-005 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 CAS-005 exam.