JNCIS-ENT Layer 2 Security Practice Question
Which THREE features are part of the secure access port feature set on Juniper EX Series switches? (Choose three)
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
✓
DHCP snooping
Secure access port features encompass port security (MAC limiting), DHCP snooping, and Dynamic ARP Inspection (DAI).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
DHCP snooping
Why this is correct
DHCP snooping is integrated into the secure access port framework.
- ✓
MAC address limiting and persistent learning
Why this is correct
Port security includes MAC limiting and persistent MAC learning.
- ✗
OSPFv3 authentication
Why it's wrong here
OSPFv3 is a Layer 3 routing protocol feature, not a Layer 2 secure access port feature.
- ✗
MACsec point-to-point encryption
Why it's wrong here
MACsec is configured separately under MACsec parameters, not secure access port.
- ✓
Dynamic ARP Inspection
Why this is correct
DAI works alongside DHCP snooping as part of secure access port controls.
Visual reference
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.