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350-701 Practice Question: A company uses Cisco ISE for network access…
A company uses Cisco ISE for network access control. They want to allow employee-owned devices to access the guest network after a simple registration, while corporate devices get full access. Which ISE configuration best achieves this?
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 MAB for unknown devices, then perform posture assessment; redirect to registration portal if needed.
Using MAB for unknown devices captures their MAC addresses. Then, posture assessment checks compliance; if the device is non-corporate (employee-owned), it can be redirected to a guest registration portal for simple registration before granting guest network access. Corporate devices that are known can be authenticated via 802.1X and granted full access. Option A (802.1X with PEAP and machine certificates) is suitable for corporate devices but not for guest devices that may not support 802.1X. Option C (MAB only for corporate devices, deny others) would block employee-owned guest devices entirely. Option D (single PSK for guest SSID) is less secure as it does not provide individual authentication or posture assessment.
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 802.1X with PEAP and machine certificates for all devices.
Why it's wrong here
This option forces 802.1X with PEAP and machine certificates on all devices. Employee-owned devices may not support 802.1X or have machine certificates, making this impractical for guest access.
- ✓
Use MAB for unknown devices, then perform posture assessment; redirect to registration portal if needed.
Why this is correct
Correct. MAB for unknown devices followed by posture assessment and portal redirect allows employee-owned devices to self-register for guest access, while corporate devices (known MACs) can be handled separately (e.g., via MAB or 802.1X) for full access.
- ✗
Use MAB only for corporate devices and deny all others.
Why it's wrong here
This option denies all unknown devices, preventing any employee-owned devices from accessing the guest network, which contradicts the requirement.
- ✗
Configure a single PSK for the guest SSID.
Why it's wrong here
Using a single PSK for the guest SSID does not provide per-device identification or the ability to redirect to a registration portal. It also lacks integration with the corporate network access control.
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 350-701 practice question is part of Courseiva's free Cisco 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 350-701 exam.