JNCIA-SEC Network Address Translation Practice Question
Which TWO statements describe the purpose of NAT on Juniper Networks SRX Series devices? (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
✓
Allowing internal private networks to communicate with external public networks.
NAT allows private IP conservation and enables internal hosts to communicate with external public networks.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Replacing the function of internal routing protocols like OSPF and BGP.
Why it's wrong here
NAT complements routing; it does not replace dynamic routing protocols.
- ✗
Providing mandatory encryption for all packet payloads traversing security zones.
Why it's wrong here
Encryption is handled by IPsec VPNs, not NAT.
- ✗
Eliminating the need for security policies on the SRX device.
Why it's wrong here
Security policies are always required alongside NAT.
- ✓
Allowing internal private networks to communicate with external public networks.
Why this is correct
NAT bridges private addressing domains with public internet routing.
- ✓
Conserving public IPv4 address space by allowing private internal hosts to share public IP addresses.
Why this is correct
Private IP conservation is a primary function of Source NAT / PAT.
Visual reference
About these practice questions
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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.