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Juniper JN0-214 Exam Syllabus Topics:

Topic	Details
Topic 1	Linux Containers: This section of the exam measures the skills of Containerization Specialists and covers the concepts of Linux containers. Candidates must understand the differences between virtual machines and containers, as well as container components. The exam tests the ability to create and manage containers using Docker. One key skill assessed is deploying and managing containers efficiently.
Topic 2	Cloud Virtualization: This section of the exam measures the skills of Linux System Administrators and covers Linux-based virtualization technologies. Candidates must understand Linux architecture, hypervisors (Type 1 & 2), and KVM QEMU operations. The exam also includes creating virtual machines and managing Linux virtualization environments. One skill assessed is setting up and managing Linux-based virtual machines effectively.
Topic 3	Cloud Orchestration with OpenStack: This section of the exam measures the skills of Cloud Operations Engineers and evaluates expertise in OpenStack-based orchestration. Candidates must understand how to create and manage virtual machines in OpenStack, use HEAT templates for automation, and navigate OpenStack interfaces. The exam also covers OpenStack networking plugins and security groups. One skill assessed is automating cloud deployments using HEAT templates.
Topic 4	Cloud Fundamentals: This section of the exam measures the skills of Cloud Infrastructure Engineers and covers the fundamental concepts of cloud networking. Candidates must understand different deployment models such as public, private, and hybrid cloud, as well as service models such as SaaS, IaaS, and PaaS. The exam also tests knowledge of cloud-native architectures, automation tools, and infrastructure technologies, including Network Functions Virtualization (NFV) and Software-Defined Networking (SDN). One key skill assessed is identifying appropriate cloud deployment models for different business needs.
Topic 5	Cloud Orchestration with Kubernetes: This section of the exam measures the skills of Kubernetes Administrators and tests their knowledge of container orchestration. Candidates must demonstrate proficiency in creating and managing Kubernetes containers, working with API objects such as Pods, ReplicaSets, Deployments, and Services, and configuring namespaces and CNI plugins. One key skill assessed is deploying and scaling Kubernetes applications effectively.
Topic 6	Cloud Orchestration with OpenShift: This section of the exam measures the skills of DevOps Engineers and focuses on OpenShift-based orchestration. Candidates must understand how to create, manage, and monitor workloads using OpenShift, as well as navigate the OpenShift CLI and WebUI. The exam also tests knowledge of node types and different network configurations. One skill assessed is managing OpenShift workloads in a production environment.
Topic 7	Network Functions Virtualization: This section of the exam measures the skills of Virtualization Specialists and covers the core principles of NFV. Candidates will be tested on NFV architecture, orchestration, and Virtual Network Functions (VNFs), which are crucial for creating scalable and flexible network infrastructures. Understanding NFV helps optimize network performance and reduce dependency on hardware-based solutions. One skill assessed is the ability to explain NFV’s role in modern network management.

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Juniper Cloud, Associate (JNCIA-Cloud) Sample Questions (Q14-Q19):

NEW QUESTION # 14
What are two available installation methods for an OpenShift cluster? (Choose two.)

A. kubesprav
B. user-provisioned infrastructure
C. installer-provisioned infrastructure
D. kubeadm

Answer: B,C

Explanation:
There are two available installation methods for an OpenShift cluster. One is the installer- provisioned infrastructure method, and the other is the user-provisioned infrastructure method.

NEW QUESTION # 15
Which type of virtualization provides containerization and uses a microservices architecture?

A. hardware-assisted virtualization
B. paravirtualization
C. OS-level virtualization
D. full virtualization

Answer: C

Explanation:
Virtualization technologies enable the creation of isolated environments for running applications or services. Let's analyze each option:
A . hardware-assisted virtualization
Incorrect: Hardware-assisted virtualization (e.g., Intel VT-x, AMD-V) provides support for running full virtual machines (VMs) on physical hardware. It is not related to containerization or microservices architecture.
B . OS-level virtualization
Correct: OS-level virtualization enables containerization , where multiple isolated user-space instances (containers) run on a single operating system kernel. Containers are lightweight and share the host OS kernel, making them ideal for microservices architectures. Examples include Docker and Kubernetes.
C . full virtualization
Incorrect: Full virtualization involves running a complete guest operating system on top of a hypervisor (e.g., VMware ESXi, KVM). While it provides strong isolation, it is not as lightweight or efficient as containerization for microservices.
D . paravirtualization
Incorrect: Paravirtualization involves modifying the guest operating system to communicate directly with the hypervisor. Like full virtualization, it is used for running VMs, not containers.
Why OS-Level Virtualization?
Containerization: OS-level virtualization creates isolated environments (containers) that share the host OS kernel but have their own file systems, libraries, and configurations.
Microservices Architecture: Containers are well-suited for deploying microservices because they are lightweight, portable, and scalable.
JNCIA Cloud Reference:
The JNCIA-Cloud certification emphasizes understanding virtualization technologies, including OS-level virtualization. Containerization is a key component of modern cloud-native architectures, enabling efficient deployment of microservices.
For example, Juniper Contrail integrates with Kubernetes to manage containerized workloads in cloud environments. OS-level virtualization is fundamental to this integration.
Reference:
Docker Documentation: Containerization
Juniper JNCIA-Cloud Study Guide: Virtualization

NEW QUESTION # 16
Which two statements are correct about OpenStack networks? (Choose two.)

A. It is not possible to add host routes in the DHCP settings in an OpenStack network.
B. It is possible to share networks with other projects in an OpenStack network.
C. It is possible to enable DHCP for a subnet in an OpenStack network.
D. It is not possible to specify a subnet address in an OpenStack network.

Answer: B,C

Explanation:
In OpenStack networks, it is possible to share networks with other projects. Also, it is possible to enable DHCP for a subnet in an OpenStack network.

NEW QUESTION # 17
Regarding the third-party CNI in OpenShift, which statement is correct?

A. OpenShift does not support third-party CNIs.
B. In OpenShift, you can have multiple third-party CNIs installed simultaneously.
C. In OpenShift, you can remove and install a third-party CNI after the cluster has been deployed.
D. In OpenShift, you must specify the third-party CNI to be installed during the initial cluster deployment.

Answer: D

Explanation:
OpenShift supports third-party Container Network Interfaces (CNIs) to provide advanced networking capabilities. However, there are specific requirements and limitations when using third-party CNIs. Let's analyze each statement:
A . In OpenShift, you can remove and install a 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 been deployed. 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 cluster deployment.
Correct:
OpenShift requires you to select and configure the desired CNI plugin (e.g., Calico, Cilium) during the initial cluster deployment. Once the cluster is deployed, changing the CNI plugin is not supported.
C . OpenShift does not support third-party CNIs.
Incorrect:
OpenShift supports third-party CNIs as alternatives to the default SDN (Software-Defined Networking) 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 CNIs simultaneously. Only one CNI plugin can be active 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 the initial deployment to ensure consistent and stable networking across the cluster.
Stability and Compatibility: Changing the CNI plugin after deployment could lead to network inconsistencies 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 CNIs. Understanding the limitations and requirements for CNI plugins is essential for deploying and managing OpenShift clusters effectively.
For example, Juniper Contrail can be integrated as a third-party CNI in OpenShift to provide advanced networking and security features, but it must be specified during the initial deployment.
Reference:
OpenShift Documentation: Third-Party CNIs
Juniper JNCIA-Cloud Study Guide: OpenShift Networking

NEW QUESTION # 18
You want to view pods with their IP addresses in OpenShift.
Which command would you use to accomplish this task?

A. oc get pods
B. oc get all
C. oc get pods -o wide
D. oc get pods -o yaml

Answer: C

Explanation:
To view pods with their IP addresses in OpenShift, you would use the command oc get pods -o wide. This command provides additional information such as the IP address and the node where the pod is located.

NEW QUESTION # 19
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