Free Questions for JNO-214

Sep 30, 2026

FreeQuestions for JNO-214 provides multiple-choice practice items focused on OpenShift and Kubernetes fundamentals. It explains why specific options are correct or incorrect regarding third-party CNI behavior in OpenShift, including the requirement to select the CNI during initial cluster deployment and the limitation to a single active CNI plugin. It also covers cluster bootstrapping by identifying kubeadm as the appropriate installation tool and specifies the operating system requirement for OpenShift control plane machines.

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Pages20

Reading Time50 min

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Free Questions for JNO-214

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# Free Questions for JNO-214 Shared by Castillo on 03-02-2025 For More Free Questions and Preparation ResourcesCheck the Links on Last Page Question 1 Question Type:MultipleChoice Regarding the third-party CNI in OpenShift,which statement is correct? Options: A-In OpenShift,you can remove and install a third-party CNI after the cluster has been deployed. B-In OpenShift,you must specify the third-party CNI to be installed during the initial clusterdeployment. C-OpenShift does not support third-party CNIs. D-In OpenShift,you can have multiple third-party CNIs installed simultaneously. Answer: B Explanation: OpenShift supports third-party Container Network Interfaces(CNIs)to provide advancednetworking capabilities.However,there are specific requirements and limitations when usingthird-party CNls.Let's analyze each statement: A.In OpenShift,you can remove and installa third-party CNI after the cluster has been deployed.Incorrect: OpenShift does not allow you to change or replace the CNI plugin after the cluster has beendeployed.The CNI plugin must be specified during the initial deployment. ## B.In OpenShift,you must specify the third-party CNI to be installed during the initial clusterdeployment. Correct: OpenShift requires you to select and configure the desired CNI plugin(e.g.,Calico,Cilium)duringthe initial cluster deployment.Once the cluster is deployed,changing the CNI plugin is notsupported. ## C.OpenShift does not support third-party CNIs. Incorrect: OpenShift supports third-party CNIs as alternatives to the default SDN (Software-DefinedNetworking)solution.This flexibility allows users to choose the best networking solution for their environment. ## D.In OpenShift,you can have multiple third-party CNIs installed simultaneously. Incorrect: OpenShift does not support running multiple CNls simultaneously.Only one CNI plugin can beactive at a time,whether it is the default SDN or a third-party CNI. ## Why This Statement? Initial Configuration Requirement:OpenShift enforces the selection of a CNI plugin during theinitial deployment to ensure consistent and stable networking across the cluster. Stability and Compatibility:Changing the CNI plugin after deployment could lead to networkinconsistencies and compatibility issues,which is why it is not allowed. ## JNCIA Cloud Reference: The JNCIA-Cloud certification covers OpenShift networking,including the use of third-party CNls.Understanding the limitations and requirements for CNI plugins is essential for deploying andmanaging OpenShift clusters effectively. For example,Juniper Contrail can be integrated as a third-party CNI in OpenShift to provideadvanced networking and security features,but it must be specified during the initialdeployment. ## OpenShift Documentation:Third-Party CNIs Juniper JNCIA-Cloud Study Guide:OpenShift Networking ## Question 2 Question Type:MultipleChoice You must install a basic Kubernetes cluster. Which tool would you use in this situation? Options: A-kubeadm B-kubectl apply C-kubectl create D-dashboard ## Answer: A ## Explanation: To install a basic Kubernetes cluster,you need a tool that simplifies the process of bootstrappingand configuring the cluster.Let's analyze each option: ### A.kubeadm Correct: kubeadm is a command-line tool specifically designed to bootstrap a Kubernetes cluster.Itautomates the process of setting up the control plane and worker nodes,making it the mostsuitable choice for installing a basic Kubernetes cluster. ### B.kubectl apply Incorrect: kubectl apply is used to deploy resources(e.g.,pods,services)into an existing Kubernetescluster by applying YAML or JSON manifests.It does not bootstrap or install a new cluster. ### C.kubectl create Incorrect

FAQs

In OpenShift, when must a third-party CNI be selected?

A third-party CNI must be selected and configured during the initial cluster deployment. After deployment, changing the CNI plugin is not supported.

Does OpenShift support multiple CNI plugins running at the same time?

No. OpenShift does not support running multiple CNI plugins simultaneously; only one CNI plugin can be active at a time.

Which tool installs a basic Kubernetes cluster, and why?

Use kubeadm. It bootstraps the control plane and supports joining worker nodes, unlike kubectl which applies or creates resources on an existing cluster.

Sep 30, 2026

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