JNCIA-SEC Network Address Translation Practice Question
An administrator configures Interface-based Source NAT. When checking operational status, the administrator wants to verify which interface IP is being used for translation and confirm traffic flow. Which command provides detailed flow session information including the translated interface IP?
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 security flow session
To inspect active sessions and verify source NAT interface translation details, the 'show security flow session interface <interface-name>' or generic session command with match filters is used.
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 nat interface statistics
Why it's wrong here
This is an invalid operational command.
- ✗
show security interface nat-status
Why it's wrong here
This command does not exist in Junos OS.
- ✓
show security flow session
Why this is correct
The session table displays pre-NAT and post-NAT source/destination IPs, verifying interface NAT execution.
- ✗
show system services interface translation
Why it's wrong here
Invalid Junos command syntax.
Visual reference
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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.