About the Exam

JN0-412 was the specialist-level exam for Juniper's Cloud track and led to the JNCIS-Cloud certification. It was designed for networking professionals with intermediate knowledge of software-defined networking, cloud networking architectures, theory, and best practices, and it verified understanding of cloud networking and SDN principles and technologies. Juniper retired JN0-412 on July 9, 2023, when the track was updated to JN0-413.

Exam Topics

  • Cloud Fundamentals15%
  • Cloud Infrastructure (NFV and SDN)20%
  • Network Virtualization15%
  • Cloud Virtualization15%
  • Cloud Orchestration with OpenStack15%
  • Cloud Orchestration with Kubernetes10%
  • Cloud Orchestration with OpenShift10%

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Last updated November 27, 2025 at 1:50 AM

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QuestionQ1

Cloud Infrastructure (NFV and SDN)

What are three advantages of implementing an NFV solution?

Choose three
  • A increased network speed using bandwidth management
  • B reduced hardware requirements
  • C automated services
  • D tenants charged only for what they use
  • E isolated switching functions
Explanation

NFV replaces dedicated network appliances with software-based network functions running on shared infrastructure, reducing specialized hardware needs. NFV orchestration enables automated service deployment and operation, and elastic resource consumption can support charging tenants only for the resources and services they use.

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QuestionQ2

Network Virtualization

Which two characteristics apply to containers used in Contrail?

Choose two
  • A Each container has the configuration for all applications running in that container.
  • B Each pod can contain only one container.
  • C Each container has the configuration for all applications running in all containers.
  • D Each pod can contain several containers.
Explanation

Each Contrail container has an INI-based configuration file containing the configuration for all applications running within that container. A Kubernetes pod is a group of one or more containers, so it can contain several containers.

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QuestionQ3

Network Virtualization

What is AppFormix used for in Contrail?

  • A to deploy an underlay fabric
  • B to create VNFs
  • C to analyze network performance
  • D to secure application traffic
Explanation

AppFormix collects and analyzes telemetry to provide visibility into network and infrastructure performance, helping identify operational and performance issues.

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QuestionQ4

Cloud Infrastructure (NFV and SDN)

What role does Contrail perform in SDN?

  • A orchestrator
  • B controller
  • C gateway
  • D fabric
Explanation

Contrail functions as an SDN controller by centrally managing and programming the network control plane for virtualized networking.

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QuestionQ5

Cloud Orchestration with Kubernetes

Which two statements regarding Kubernetes clusters are accurate?

Choose two
  • A The master coordinates the cluster.
  • B The minions are responsible for running the applications.
  • C The nodes are responsible for running the applications.
  • D The pod controller coordinates the cluster.
Explanation

The Kubernetes control plane, historically referred to as the master, manages and coordinates the cluster. Worker nodes host Pods and run the containerized application workload. A pod controller is not the cluster-wide coordinating component.

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