JN0-214 Guide, JN0-214 Valid Test Labs

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Juniper JN0-214 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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 3	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 4	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 5	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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JN0-214 Valid Test Labs, JN0-214 Valid Test Experience

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Juniper Cloud, Associate (JNCIA-Cloud) Sample Questions (Q49-Q54):

NEW QUESTION # 49
The Kubernetes object definition file is in which format?

A. TXT
B. IXML
C. HTML
D. YAML

Answer: D

Explanation:
The Kubernetes object definition file is in YAML format. Kubernetes objects are represented in the Kubernetes API, and you can express them in .yaml format. You can execute kubectl get deployment <deployment-name> -o yaml to get the deployment definition in a yaml format.

NEW QUESTION # 50
You want to view pods with their IP addresses in OpenShift.
Which command would you use to accomplish this task?

A. oc get all
B. oc get pods
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 # 51
Which two statements are correct about an underlay network? (Choose two.)

A. The underlay network is the virtual network used to connect multiple virtual machines (VMs).
B. The underlay network is built using encapsulations tunnels.
C. An underlay network can be built using either Layer 2 or Layer 3 connectivity.
D. A Layer 3 underlay network uses routing protocols to provide IP connectivity.

Answer: C,D

Explanation:
An underlay network refers to the physical or logical network infrastructure that provides the foundation for overlay networks in cloud environments. It handles the actual transport of data between devices and serves as the backbone for cloud architectures. Let's analyze each statement:
A . An underlay network can be built using either Layer 2 or Layer 3 connectivity.
Correct: Underlay networks can operate at both Layer 2 (switching) and Layer 3 (routing). For example:
Layer 2: Uses Ethernet switching to forward traffic within a single broadcast domain.
Layer 3: Uses IP routing to forward traffic across multiple subnets or networks.
B . A Layer 3 underlay network uses routing protocols to provide IP connectivity.
Correct: In a Layer 3 underlay network, routing protocols like OSPF, BGP, or EIGRP are used to exchange routing information and ensure IP connectivity between devices. This is common in large-scale cloud environments where scalability and segmentation are critical.
C . The underlay network is the virtual network used to connect multiple virtual machines (VMs).
Incorrect: The underlay network is the physical or logical infrastructure that supports the overlay network. The overlay network, on the other hand, is the virtual network used to connect VMs, containers, or other endpoints. The underlay provides the foundation, while the overlay adds abstraction and flexibility.
D . The underlay network is built using encapsulations tunnels.
Incorrect: Encapsulation tunnels (e.g., VXLAN, GRE) are used in overlay networks, not underlay networks. The underlay network provides the physical or logical transport layer, while the overlay network uses tunnels to create virtualized network segments.
Why These Answers?
Layer 2 and Layer 3 Flexibility: The underlay network must support both switching and routing to accommodate diverse workloads and topologies.
Routing Protocols in Layer 3: Routing protocols are essential for scalable and efficient IP connectivity in Layer 3 underlay networks.
JNCIA Cloud Reference:
The JNCIA-Cloud certification covers underlay and overlay networks as part of its discussion on cloud architectures. Understanding the distinction between underlay and overlay networks is crucial for designing and managing cloud environments.
For example, Juniper Contrail uses an underlay network to provide the physical connectivity required for overlay networks. The underlay ensures reliable and scalable transport, while the overlay enables flexible virtualized networking.
Reference:
Juniper JNCIA-Cloud Study Guide: Underlay and Overlay Networks
Network Virtualization Documentation

NEW QUESTION # 52
What are two Kubernetes worker node components? (Choose two.)

A. kube-apiserver
B. kube-proxy
C. kubelet
D. kube-scheduler

Answer: B,C

Explanation:
Kubernetes worker nodes are responsible for running containerized applications and managing the workloads assigned to them. Each worker node contains several key components that enable it to function within a Kubernetes cluster. Let's analyze each option:
A . kube-apiserver
Incorrect: The kube-apiserver is a control plane component, not a worker node component. It serves as the front-end for the Kubernetes API, handling communication between the control plane and worker nodes.
B . kubelet
Correct: The kubelet is a critical worker node component. It ensures that containers are running in the desired state by interacting with the container runtime (e.g., containerd). It communicates with the control plane to receive instructions and report the status of pods.
C . kube-scheduler
Incorrect: The kube-scheduler is a control plane component responsible for assigning pods to worker nodes based on resource availability and other constraints. It does not run on worker nodes.
D . kube-proxy
Correct: The kube-proxy is another essential worker node component. It manages network communication for services and pods by implementing load balancing and routing rules. It ensures that traffic is correctly forwarded to the appropriate pods.
Why These Components?
kubelet: Ensures that containers are running as expected and maintains the desired state of pods.
kube-proxy: Handles networking and enables communication between services and pods within the cluster.
JNCIA Cloud Reference:
The JNCIA-Cloud certification covers Kubernetes architecture, including the roles of worker node components. Understanding the functions of kubelet and kube-proxy is crucial for managing Kubernetes clusters and troubleshooting issues.
For example, Juniper Contrail integrates with Kubernetes to provide advanced networking and security features. Proficiency with worker node components ensures efficient operation of containerized workloads.
Reference:
Kubernetes Documentation: Worker Node Components
Juniper JNCIA-Cloud Study Guide: Kubernetes Architecture

NEW QUESTION # 53
Which cloud automation tool uses YAML playbooks to install software and tools on servers?

A. Terraform
B. Heat
C. Ansible
D. Python

Answer: C

Explanation:
According to the Ansible documentation4, Ansible playbooks are "automation blueprints, in YAML format, that Ansible uses to deploy and configure nodes in an inventory". Other cloud automation tools that are mentioned in the question are Terraform, which uses HCL (HashiCorp Configuration Language) or JSON files to provision infrastructure resources; Python, which is a general-purpose programming language that can be used for various automation tasks; and Heat, which is an orchestration service for OpenStack that uses HOT (Heat Orchestration Template) or CFN (AWS CloudFormation) formats to describe stacks of cloud resources.

NEW QUESTION # 54
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JN0-214 GUIDE, JN0-214 VALID TEST LABS

JN0-214 Guide, JN0-214 Valid Test Labs