JNCIA-SEC Security Policies Practice Question
What happens to return traffic for an established session that was originally permitted by a security policy?
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
✓
Return traffic is automatically permitted by the stateful inspection engine without requiring a reverse security policy.
Junos is a stateful firewall; return traffic belonging to an established session is automatically permitted without needing a separate return policy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Return traffic is dropped unless stateless firewall filters permit it.
Why it's wrong here
Incorrect. Stateful sessions bypass policy checks for return packets.
- ✗
Return traffic is evaluated against global policies only.
Why it's wrong here
Incorrect. Established sessions bypass policy evaluation for return packets.
- ✓
Return traffic is automatically permitted by the stateful inspection engine without requiring a reverse security policy.
Why this is correct
Correct. Stateful inspection tracks sessions and automatically allows return traffic.
- ✗
A separate security policy allowing traffic from the destination zone back to the source zone must be explicitly configured.
Why it's wrong here
Incorrect. Stateful firewalls do not require reverse policies for established sessions.
About these practice questions
One of 513 original JNCIA-SEC 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 JNCIA-SEC 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 JNCIA-SEC exam.