JNCIP-ENT Layer 2 Authentication And Access Control Practice Question
Which command is used to clear dynamic MAC RADIUS authentication states and force a re-authentication on interface ge-0/0/5?
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
✓
clear dot1x interface ge-0/0/5
To clear dot1x or mac-radius states on an interface, the 'clear dot1x statistics' or 'clear access security' commands are used, or more specifically 'clear dot1x interface' to reset the state machine.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
clear ethernet-switching security-table interface ge-0/0/5
Why it's wrong here
Incorrect. Ethernet-switching security tables are cleared via different options.
- ✗
clear access client-profile ge-0/0/5
Why it's wrong here
Incorrect. Access client-profile is not a valid clear command target.
- ✓
clear dot1x interface ge-0/0/5
Why this is correct
Correct. Clearing the dot1x interface resets the state machine for both 802.1X and associated MAC RADIUS fallback.
- ✗
clear mac-radius statistics interface ge-0/0/5
Why it's wrong here
Incorrect. MAC-radius specific clear commands do not exist in this format.
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.
About these practice questions
This JNCIP-ENT question is part of Courseiva's 332-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Juniper Networks exam blueprint
This JNCIP-ENT practice question is part of Courseiva's free Juniper Networks 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 JNCIP-ENT exam.