JNCIS-ENT Layer 2 Security Practice Question
Which TWO options are valid violation actions available for port security configurations in Junos OS? (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
✓
restrict
Junos port security supports drop, restrict, and shutdown violation actions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
isolate
Why it's wrong here
Isolate is not a port security violation action.
- ✗
rate-limit
Why it's wrong here
Rate-limit is used for storm control, not port security violation actions.
- ✗
quarantine
Why it's wrong here
Quarantine is not a valid Junos port security action keyword.
- ✓
restrict
Why this is correct
Restrict drops violating traffic and increments counters while keeping the port up.
- ✓
shutdown
Why this is correct
Shutdown disables the violating port.
About these practice questions
Courseiva writes every JNCIS-ENT question from scratch — 506 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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 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.