JNCIS-ENT Layer 2 Switching And VLANs Practice Question
An administrator wants to examine Layer 2 switching status and MAC learning tables on an EX Series switch. Which TWO operational commands can be used to gather this information? (Choose two.)
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
✓
show ethernet-switching interface
MAC tables and interface switching states are reviewed using 'show ethernet-switching table' and 'show ethernet-switching interface'.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
show vlans summary
Why it's wrong here
The summary keyword is invalid for show vlans.
- ✗
show bridge-domain forwarding-table
Why it's wrong here
Bridge-domain forwarding tables are used in EVPN/VPLS, not standard enterprise switching.
- ✓
show ethernet-switching interface
Why this is correct
Correct. Displays ethernet-switching interface operational states and modes.
- ✗
show ip route bridge
Why it's wrong here
This command does not exist in Junos OS.
- ✓
show ethernet-switching table
Why this is correct
Correct. Displays the Layer 2 MAC forwarding table.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
About these practice questions
One of 506 original JNCIS-ENT practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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 JNCIS-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 JNCIS-ENT exam.