JNCIA-SEC Srx Series Service Gateways Practice Question
You are configuring physical interfaces on an SRX Series gateway. Which command structure is used to assign an interface to a specific security zone in Junos?
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 zones security-zone <name> interfaces <interface>
Security zones are configured under the 'set security zones security-zone <zone-name> interfaces <interface-name>' 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 firewall zone-mapping interface <interface> zone <name>
Why it's wrong here
This is an incorrect syntax path for Junos security zones.
- ✗
set interfaces <name> security-zone <zone>
Why it's wrong here
Interfaces are not assigned to security zones from the root interface hierarchy.
- ✗
set routing-options zones <name> interface <interface>
Why it's wrong here
Routing-options does not contain security zone configurations.
- ✓
set security zones security-zone <name> interfaces <interface>
Why this is correct
Security zones are populated with interfaces under the security configuration hierarchy.
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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.