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Juniper JN0-214 Exam Syllabus Topics:

Topic	Details
Topic 1	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.
Topic 2	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 3	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 4	Network Virtualization: This section of the exam measures the skills of Cloud Network Architects and evaluates the principles of network virtualization. Candidates must understand different types of virtual networks, as well as underlay and overlay network configurations. The exam also covers encapsulation and tunneling technologies such as MPLS over GRE, VXLAN, and GENEVE. One skill assessed is the ability to differentiate between underlay and overlay networks in cloud environments.
Topic 5	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 6	Software-Defined Networking: This section of the exam measures the skills of Network Automation Engineers and focuses on SDN concepts, including its architecture, controllers, and solutions. Candidates must understand how SDN separates the control plane from the data plane to improve network agility and automation. The exam also evaluates knowledge of SDN’s role in modern cloud environments. One key skill assessed is identifying SDN components and their functions.

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Juniper Cloud, Associate (JNCIA-Cloud) Sample Questions (Q13-Q18):

NEW QUESTION # 13
Your organization has legacy virtual machine workloads that need to be managed within a Kubernetes deployment.
Which Kubernetes add-on would be used to satisfy this requirement?

A. KubeVirt
B. Canal
C. Romana
D. ADOT

Answer: A

Explanation:
Kubernetes is designed primarily for managing containerized workloads, but it can also support legacy virtual machine (VM) workloads through specific add-ons. Let's analyze each option:
A . ADOT
Incorrect: The AWS Distro for OpenTelemetry (ADOT) is a tool for collecting and exporting telemetry data (metrics, logs, traces). It is unrelated to running VMs in Kubernetes.
B . Canal
Incorrect: Canal is a networking solution that combines Flannel and Calico to provide overlay networking and network policy enforcement in Kubernetes. It does not support VM workloads.
C . KubeVirt
Correct: KubeVirt is a Kubernetes add-on that enables the management of virtual machines alongside containers in a Kubernetes cluster. It allows organizations to run legacy VM workloads while leveraging Kubernetes for orchestration.
D . Romana
Incorrect: Romana is a network policy engine for Kubernetes that provides security and segmentation. It does not support VM workloads.
Why KubeVirt?
VM Support in Kubernetes: KubeVirt extends Kubernetes to manage both containers and VMs, enabling organizations to transition legacy workloads to a Kubernetes environment.
Unified Orchestration: By integrating VMs into Kubernetes, KubeVirt simplifies the management of hybrid workloads.
JNCIA Cloud Reference:
The JNCIA-Cloud certification covers Kubernetes extensions like KubeVirt as part of its curriculum on cloud-native architectures. Understanding how to integrate legacy workloads into Kubernetes is essential for modernizing IT infrastructure.
For example, Juniper Contrail integrates with Kubernetes and KubeVirt to provide networking and security for hybrid workloads.
Reference:
KubeVirt Documentation
Juniper JNCIA-Cloud Study Guide: Kubernetes Extensions

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

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

Answer: A,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 command would you use to see which VMs are running on your KVM device?

A. virsh net-list
B. virsh list
C. virt-install
D. VBoxManage list runningvms

Answer: B

Explanation:
KVM (Kernel-based Virtual Machine) is a popular open-source virtualization technology that allows you to run virtual machines (VMs) on Linux systems. The virsh command-line tool is used to manage KVM VMs. Let's analyze each option:
A . virt-install
Incorrect: The virt-install command is used to create and provision new virtual machines. It is not used to list running VMs.
B . virsh net-list
Incorrect: The virsh net-list command lists virtual networks configured in the KVM environment. It does not display information about running VMs.
C . virsh list
Correct: The virsh list command displays the status of virtual machines managed by the KVM hypervisor. By default, it shows only running VMs. You can use the --all flag to include stopped VMs in the output.
D . VBoxManage list runningvms
Incorrect: The VBoxManage command is used with Oracle VirtualBox, not KVM. It is unrelated to KVM virtualization.
Why virsh list?
Purpose-Built for KVM: virsh is the standard tool for managing KVM virtual machines, and virsh list is specifically designed to show the status of running VMs.
Simplicity: The command is straightforward and provides the required information without additional complexity.
JNCIA Cloud Reference:
The JNCIA-Cloud certification emphasizes understanding virtualization technologies, including KVM. Managing virtual machines using tools like virsh is a fundamental skill for operating virtualized environments.
For example, Juniper Contrail supports integration with KVM hypervisors, enabling the deployment and management of virtualized network functions (VNFs). Proficiency with KVM tools ensures efficient management of virtualized infrastructure.
Reference:
KVM Documentation: virsh Command
Juniper JNCIA-Cloud Study Guide: Virtualization

NEW QUESTION # 16
Which Kubernetes component guarantees the availability of ReplicaSet pods on one or more nodes?

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

Answer: A

Explanation:
Kubernetes components work together to ensure the availability and proper functioning of resources like ReplicaSets. Let's analyze each option:
A . kube-proxy
Incorrect: The kube-proxy manages network communication for services and pods by implementing load balancing and routing rules. It does not guarantee the availability of ReplicaSet pods.
B . kube-scheduler
Incorrect: The kube-scheduler is responsible for assigning pods to nodes based on resource availability and other constraints. While it plays a role in pod placement, it does not ensure the availability of ReplicaSet pods.
C . kube controller
Correct: The kube controller (specifically the ReplicaSet controller) ensures that the desired number of pods specified in a ReplicaSet are running at all times. If a pod crashes or is deleted, the controller creates a new one to maintain the desired state.
D . kubelet
Incorrect: The kubelet ensures that containers are running as expected on a node but does not manage the overall availability of ReplicaSet pods across the cluster.
Why Kube Controller?
ReplicaSet Management: The ReplicaSet controller within the kube controller manager ensures that the specified number of pod replicas are always available.
Self-Healing: If a pod fails or is deleted, the controller automatically creates a new pod to maintain the desired state.
JNCIA Cloud Reference:
The JNCIA-Cloud certification covers Kubernetes control plane components, including the kube controller. Understanding the role of the kube controller is essential for managing the availability and scalability of Kubernetes resources.
For example, Juniper Contrail integrates with Kubernetes to provide advanced networking and security features, relying on the kube controller to maintain the desired state of ReplicaSets.
Reference:
Kubernetes Documentation: ReplicaSet Controller
Juniper JNCIA-Cloud Study Guide: Kubernetes Control Plane

NEW QUESTION # 17
You must provide tunneling in the overlay that supports multipath capabilities.
Which two protocols provide this function? (Choose two.)

A. VPN
B. VXLAN
C. MPLSoGRE
D. MPLSoUDP

Answer: B,D

Explanation:
In cloud networking, overlay networks are used to create virtualized networks that abstract the underlying physical infrastructure. To support multipath capabilities , certain protocols provide efficient tunneling mechanisms. Let's analyze each option:
A . MPLSoGRE
Incorrect: MPLS over GRE (MPLSoGRE) is a tunneling protocol that encapsulates MPLS packets within GRE tunnels. While it supports MPLS traffic, it does not inherently provide multipath capabilities.
B . VXLAN
Correct: VXLAN (Virtual Extensible LAN) is an overlay protocol that encapsulates Layer 2 Ethernet frames within UDP packets. It supports multipath capabilities by leveraging the Equal-Cost Multi-Path (ECMP) routing in the underlay network. VXLAN is widely used in cloud environments for extending Layer 2 networks across data centers.
C . VPN
Incorrect: Virtual Private Networks (VPNs) are used to securely connect remote networks or users over public networks. They do not inherently provide multipath capabilities or overlay tunneling for virtual networks.
D . MPLSoUDP
Correct: MPLS over UDP (MPLSoUDP) is a tunneling protocol that encapsulates MPLS packets within UDP packets. Like VXLAN, it supports multipath capabilities by utilizing ECMP in the underlay network. MPLSoUDP is often used in service provider environments for scalable and flexible network architectures.
Why These Protocols?
VXLAN: Provides Layer 2 extension and supports multipath forwarding, making it ideal for large-scale cloud deployments.
MPLSoUDP: Combines the benefits of MPLS with UDP encapsulation, enabling efficient multipath routing in overlay networks.
JNCIA Cloud Reference:
The JNCIA-Cloud certification covers overlay networking protocols like VXLAN and MPLSoUDP as part of its curriculum on cloud architectures. Understanding these protocols is essential for designing scalable and resilient virtual networks.
For example, Juniper Contrail uses VXLAN to extend virtual networks across distributed environments, ensuring seamless communication and high availability.
Reference:
VXLAN RFC 7348
MPLSoUDP Documentation
Juniper JNCIA-Cloud Study Guide: Overlay Networking

NEW QUESTION # 18
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