JNCIA-SEC Monitoring And Troubleshooting Practice Question
While reviewing security flow traceoptions output, you see a packet dropped with the reason "Session table full". What is the immediate consequence of this event on incoming new traffic?
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
✓
New traffic attempting to create a session is dropped until session table space becomes available.
When the security session table reaches its maximum capacity, new session creation requests are dropped until sessions expire or are cleared.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
New traffic attempting to create a session is dropped until session table space becomes available.
Why this is correct
When max-sessions is reached, the device drops new session setup packets (such as TCP SYN) until entries age out.
- ✗
The SRX automatically reboots to clear memory.
Why it's wrong here
Session table exhaustion does not trigger an automatic reboot.
- ✗
Existing established sessions are immediately terminated to make room for new traffic.
Why it's wrong here
Existing sessions are not terminated when the table is full; new session creation requests are rejected.
- ✗
Traffic is switched to stateless forwarding mode bypassing the security engine.
Why it's wrong here
An SRX cannot dynamically switch to stateless forwarding due to session table exhaustion.
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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.