JNCIA-SEC Network Address Translation Practice Question
Which Junos configuration statement defines a source NAT rule-set evaluating traffic from the 'trust' zone to the 'untrust' zone?
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
✓
set security nat source rule-set rs1 from zone trust to zone untrust
Source NAT rule-sets are created under the 'security nat source rule-set <name> from zone <zone> to zone <zone>' hierarchy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
set security nat rule-set source rs1 zone trust untrust
Why it's wrong here
This syntax is invalid in Junos OS.
- ✓
set security nat source rule-set rs1 from zone trust to zone untrust
Why this is correct
This is the correct syntax for establishing a source NAT rule-set with source and destination zones.
- ✗
set security nat source zone trust untrust rule-set rs1
Why it's wrong here
This command structure is incorrect for Junos OS.
- ✗
set security policies from-zone trust to-zone untrust source-nat
Why it's wrong here
Source NAT is configured in the NAT hierarchy, not inside security policies.
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.