JNCIA-SEC Srx Series Service Gateways Practice Question
An enterprise network uses a vSRX deployed on a hypervisor. The administrator needs to allocate additional vCPUs to improve throughput. Which component's performance is primarily enhanced by increasing vCPUs on a vSRX?
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
✓
Virtual Forwarding Plane (vFP) data path processing
In a vSRX, the Virtual Forwarding Plane (vFP) utilizes the allocated vCPUs for packet processing and security forwarding performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
CLI responsiveness and SSH login speed
Why it's wrong here
CLI access is managed by the vRE and is rarely bottlenecked by data-plane vCPU counts.
- ✗
Junos Space management communication
Why it's wrong here
Junos Space is an external management platform and is unaffected by hypervisor vCPU allocation to a vSRX.
- ✓
Virtual Forwarding Plane (vFP) data path processing
Why this is correct
Increasing vCPUs directly scales the vFP packet processing capabilities and overall data throughput.
- ✗
Virtual Routing Engine (vRE) control plane convergence
Why it's wrong here
The vRE handles control plane tasks which typically do not require heavy multi-vCPU scaling for throughput.
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.