JNCIA-SEC Network Address Translation Practice Question
When configuring NAT rule sets on a Junos OS device, in what order are different types of NAT evaluated?
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
✓
Destination NAT is evaluated first, followed by Source NAT, and then Static NAT.
Junos OS evaluates NAT rule sets in a specific order: Destination NAT is evaluated first, followed by Source NAT, and finally Static NAT.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Destination NAT is evaluated first, followed by Source NAT, and then Static NAT.
Why this is correct
The evaluation order in Junos OS security NAT is Destination NAT, then Source NAT, then Static NAT.
- ✗
All NAT types are evaluated simultaneously using parallel hardware lookups.
Why it's wrong here
Junos evaluates NAT types sequentially based on predefined processing stages.
- ✗
Source NAT is evaluated first, followed by Destination NAT, and then Static NAT.
Why it's wrong here
Source NAT is not evaluated before Destination NAT.
- ✗
Static NAT is evaluated first, followed by Destination NAT, and then Source NAT.
Why it's wrong here
Static NAT is evaluated last among the three NAT types.
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.