JNCIA-SEC Srx Series Service Gateways Practice Question
Which TWO characteristics describe security zones on an SRX Series gateway? (Choose two)
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
✓
Traffic between interfaces in the same security zone is permitted by default (intra-zone traffic).
Security zones group interfaces and enforce that all transit traffic between zones must pass through security policies.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Security zones eliminate the need for IP routing tables.
Why it's wrong here
Zones work in conjunction with routing tables, they do not replace them.
- ✗
Security zones are only used for out-of-band management.
Why it's wrong here
Zones are used for data plane transit traffic segmentation.
- ✓
Traffic between interfaces in the same security zone is permitted by default (intra-zone traffic).
Why this is correct
By default, traffic between interfaces within the same security zone is allowed.
- ✗
Security zones can only contain a single physical interface.
Why it's wrong here
A security zone can contain multiple physical, logical, or tunnel interfaces.
- ✓
Interfaces must be assigned to a security zone before security policies can evaluate traffic traversing them.
Why this is correct
Policies operate between security zones, requiring interface zone membership.
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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.