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mediumDrag & DropObjective-mapped
350-401 Practice Question: Drag and drop the steps of IBNS 2.0 concurrent…
Drag and drop the steps of IBNS 2.0 concurrent authentication policy map into the correct order, from first to last.
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
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Switch initiates 802.1X authentication
IBNS 2.0 uses a policy map to define concurrent methods; the switch first tries 802.1X, then MAB as fallback, and if both fail, applies a critical or default ACL; the order is defined in the policy map class.
Visual reference
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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Related to this question
Learn chapter
Spine-Leaf and Software-Defined Network Architectures
Key term
Cisco TrustSec
Cisco TrustSec is a security architecture that uses identity-based access control and encryption to protect network traffic, rather than relying only on IP addresses and VLANs.
Key term
Cisco ISE
Cisco Identity Services Engine is a security policy management platform that controls who can access a network and what they can do once connected.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 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 350-401 exam.