JNCIA-SEC Network Address Translation Practice Question
Which Junos configuration statement specifies the action taken when a source NAT rule matches 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
✓
then source-nat
In Junos source NAT rules, actions are specified using the 'then' statement, such as 'then source-nat interface' or 'then source-nat pool'.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
nat-action source
Why it's wrong here
'nat-action' is not a valid Junos keyword.
- ✗
set action source-translation
Why it's wrong here
Action statements are defined with 'then', not 'set action'.
- ✓
then source-nat
Why this is correct
The 'then' statement defines the action, followed by 'source-nat' and the translation method (pool or interface).
- ✗
action translate source
Why it's wrong here
This syntax is invalid in Junos OS.
Visual reference
About these practice questions
This JNCIA-SEC question is part of Courseiva's 513-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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 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.