Start your JN0-213 Exam Questions Preparation with Updated 67 Questions
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The JN0-213 exam is a multiple-choice exam that consists of 65 questions. Candidates are given 90 minutes to complete the exam. JN0-213 exam is available in English and Japanese languages. JN0-213 exam is conducted at Pearson VUE testing centers worldwide. Candidates can register for the exam on the Juniper Networks website.
NEW QUESTION # 34
What is the networking service of OpenStack?
- A. Heat
- B. ironic
- C. Neutron
- D. Barbican
Answer: C
Explanation:
Explanation
OpenStack's networking service is known as Neutron. Neutron provides a scalable, API-driven, web services-based model for network connectivity as a service. It is designed to manage and configure networking services for both simple and complex network topologies. Neutron allows users to create their own networks, control traffic and connect servers and devices to one or multiple networks.
NEW QUESTION # 35
Juniper Cloud-Native Contrail Networking (CN2) is able to be integrated with which orchestrator?
- A. Kubernetes
- B. CloudStack
- C. Marathon
- D. Mesosphere
Answer: A
Explanation:
Explanation
Juniper Cloud-Native Contrail Networking (CN2) can be integrated with Kubernetes. CN2 is optimized for Kubernetes-orchestrated environments and can be used to connect, isolate, and secure cloud workloads and services seamlessly across private, public, and hybrid clouds.
NEW QUESTION # 36
Your business has optimized its applications to leverage a cloud-native microservices-based architecture.
In this architecture, how do the various modules of an application communicate?
- A. Application modules communicate through interprocess communication
- B. Application modules communicate through remote direct memory access
- C. Application modules communicate through shared data structures (DB/files).
- D. Application modules communicate through application programming interface (API) calls.
Answer: D
Explanation:
Explanation
In a cloud-native microservices-based architecture, the various modules of an application communicate through application programming interface (API) calls5. Each service is autonomous and self-contained and runs a unique process6. References from Juniper site: Microsoft Learn, Palo Alto Networks
NEW QUESTION # 37
Which component of a software-defined networking (SDN) controller defines where data packets are forwarded by a network device?
- A. the forwarding plane
C the management plane - B. the control plane
- C. the operational plane
Answer: A
Explanation:
Explanation
The forwarding plane (also known as the data plane) of a software-defined networking (SDN) controller is responsible for forwarding data packets based on the instructions given by the control plane23. It handles all activities involving data packets sent by the end-user, including forwarding of packets2. References from Juniper site: GeeksforGeeks, SDxCentral
NEW QUESTION # 38
Which statement is correct about a vRouter?
- A. A vRouter always provides a direct connection between a tenant VM and the underlay network.
- B. A vRouter uses virtual routing and forwarding (VRF) instances to create individual routing tables for each tenant.
- C. A vRouter can only provide connections to a single tenant's VM.
- D. A vRouter uses logical systems to create individual routing tables for each tenant.
Answer: B
Explanation:
Explanation
A vRouter uses virtual routing and forwarding (VRF) instances to create individual routing tables for each tenant. A VRF is a logical partition of a router's routing table that allows multiple instances of routing information to coexist on the same router. A vRouter can provide connections to multiple tenants' VMs by using different VRFs for each tenant
NEW QUESTION # 39
What are the two primary ways used to manage objects by kubectl? (Choose two.)
- A. imperative commands
- B. declarative object configuration
- C. imperative object commands
- D. declarative commands
Answer: A,B
Explanation:
Explanation
The two primary ways used to manage objects by kubectl are imperative commands and declarative object configuration10. Imperative commands operate directly on live objects in a cluster. The user provides operations to the kubectl command as arguments or flags10. Declarative object configuration specifies the operation (create, replace, etc.), optional flags and at least one file name. The file specified must contain a full definition of the object in YAML or JSON format10.
NEW QUESTION # 40
Which virtualization technique is used by containers?
- A. full visualization
- B. OS-level virtualization
- C. hardware-assisted virtualization
- D. paravirtualization
Answer: B
Explanation:
Explanation
This technique allows multiple isolated user-space instances to be created by the host operating system. Unlike full virtualization, where the entire system's hardware is emulated, OS-level virtualization shares the host's operating system kernel but isolates the application processes12.
NEW QUESTION # 41
Which two statements are true regarding isolated namespaces in Juniper Cloud-Native Contrail Networking (CN2)? (Choose two.)
- A. Pods in isolated namespaces can only communicate with pods in the same namespace.
- B. Pods in isolated namespaces can communicate with pods in non-isolated namespaces.
- C. Pods in isolated namespaces can only reach services in the same namespace.
- D. Pods in isolated namespaces can reach services in non-isolated namespaces.
Answer: A,C
Explanation:
Explanation
In Juniper Cloud-Native Contrail Networking (CN2), isolated namespaces are used to isolate a pod from other pods without explicitly configuring a network policy3. Pods in an isolated namespace can only communicate with pods in the same namespace3. They cannot reach pods or services in other isolated or non-isolated namespaces3.
NEW QUESTION # 42
Click the Exhibit button.
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. The myvSRX instance is currently running.
- B. The c using a custom flavor.
- C. The myvSRX instance is using a default image.
- D. The myvSRX instance is part of a default network.
Answer: A,B
Explanation:
Explanation
Based on the image description provided, the instance named 'myvSRX' appears to be using a custom flavor (not default) and is currently in an 'ACTIVE' state, which means it is running.
NEW QUESTION # 43
You must provide tunneling in the overlay that supports multipath capabilities.
Which two protocols provide this function? (Choose two.)
- A. VXLAN
- B. VPN
- C. MPLSoGRE
- D. MPLSoUDP
Answer: A,D
Explanation:
Explanation
MPLSoUDP (Multiprotocol Label Switching over User Datagram Protocol) and VXLAN (Virtual Extensible LAN) are two protocols that provide tunneling in the overlay and support multipath capabilities45.
MPLSoUDP is an encapsulation protocol that allows MPLS packets to be encapsulated in UDP packets. VXLAN is a network virtualization technology that attempts to address the scalability problems associated with large cloud computing deployments
NEW QUESTION # 44
Your e-commerce application is deployed on a public cloud. As compared to the rest of the year, it receives substantial traffic during the Christmas season.
In this scenario, which cloud computing feature automatically increases or decreases the resources based on the demand?
- A. rapid elasticity
- B. on-demand self-service
- C. resource pooling
- D. broad network access
Answer: A
Explanation:
Explanation
The cloud computing feature that automatically increases or decreases the resources based on the demand is known as rapid elasticity1112. In cloud computing, scaling is the process of adding or removing compute, storage, and network services to meet the demands a workload makes for resources in order to maintain availability and performance as utilization increases11.
NEW QUESTION # 45
Which two statements are correct about Network Functions Virtualization (NFV)? (Choose two.)
- A. The NFV framework explains how VNFs fits into the whole solution.
- B. The NFV infrastructure (NFVI) is not a component of NFV.
- C. The NFV framework is defined by the W3C.
- D. The NFV infrastructure (NFVI) is a component of NFV.
Answer: A,D
Explanation:
Explanation
Network Functions Virtualization (NFV) is a network architecture concept that uses IT virtualization technologies to virtualize entire classes of network node functions into building blocks that may connect or chain together to create communication services3. The NFV framework explains how Virtual Network Functions (VNFs) fit into the whole solution4. The NFV Infrastructure (NFVI) is a component of NFV that consists of the infrastructure components -compute, storage, networking-on a platform to support software4. References from Juniper site: Red Hat, VMware, Wikipedia
NEW QUESTION # 46
Which SDN model provisions tunnels between the virtual endpoints within and across data centers?
- A. open SDN
- B. SDN overlay
- C. switch-based SDN
- D. SDN by APIs
Answer: B
Explanation:
Explanation
The SDN overlay model provisions tunnels between the virtual endpoints within and across data centers2. This model uses network overlays to support private communication between instances3. References from Juniper site: Microsoft Learn, Red Hat Customer Portal
NEW QUESTION # 47
What is the name of the Docker container runtime?
- A. containerd
- B. dockerd
- C. docker cl
- D. cri-o
Answer: A
Explanation:
Explanation
The name of the Docker container runtime is containerd, which is a daemon that manages the complete container lifecycle of its host system, from image transfer and storage to container execution and supervision to low-level storage to network attachments and beyond. Dockerd is the Docker daemon that acts as the primary user interface for Docker. Docker cl is not a valid name for any Docker component. Cri-o is another container runtime that implements the Kubernetes Container Runtime Interface (CRI) to enable using OCI (Open Container Initiative) compatible runtimes
NEW QUESTION # 48
Which two statements about Kubernetes are correct? (Choose two.)
- A. A ClusterlP service exposes pods to internal traffic only
- B. Each container within a pod has a unique IP address.
- C. All containers within a pod share the same IP address.
- D. A ClusterlP service exposes pods to internal and external traffic.
Answer: A,C
Explanation:
Explanation
In Kubernetes, all containers within a pod share the same IP address7. A ClusterIP service exposes pods to internal traffic only87. References from Juniper site: IBM, Kubernetes Documentation
NEW QUESTION # 49
Which term identifies to which network a virtual machine interface is connected?
- A. virtual network ID (VNID)
- B. virtual tunnel endpoint (VTEP)
- C. Virtual Extensible LAN (VXLAN)
- D. machine access control (MAC)
Answer: A
Explanation:
Explanation
The term that identifies to which network a virtual machine interface is connected is the virtual network ID (VNID). The VNID is a unique identifier assigned to each virtual network. It is used to differentiate between different virtual networks and to ensure that each virtual machine interface is connected to the correct network.
NEW QUESTION # 50
You are provisioning workloads on worker nodes in a Kubernetes cluster.
Which CN2 component is responsible for generating associated routes?
- A. Configuration Resource (CR) controllers
- B. Contrail kube-manager
- C. vRouter forwarding plane
- D. vRouter agent microservice
Answer: D
Explanation:
Explanation
The vRouter agent microservice is the CN2 component responsible for generating associated routes. When a pod is scheduled on a node, the vRouter agent on that node programs the necessary routes in the kernel routing table to ensure that traffic destined for that pod is properly routed.
NEW QUESTION # 51
The openstack user list command uses which OpenStack service?
- A. Cinder
- B. Keystone
- C. Nova
- D. Neutron
Answer: B
Explanation:
Explanation
The openstack user list command uses the Keystone service, which is the identity service for OpenStack.
Keystone provides authentication, authorization, and service discovery for OpenStack. It also manages projects, users, roles, and endpoints for the OpenStack services
NEW QUESTION # 52
Which CN2 component provides the network control plane capability?
- A. contrail-k8s-controller
- B. contrail-control
- C. contrail-k8s-kubemanaqer
- D. contrail-vrouter-nodes
Answer: B
Explanation:
Explanation
The network control plane in CN2 represents CN2's full-featured SDN capability. It communicates with other controllers and uses XMPP to communicate with the distributed data plane components on the worker nodes6.
References from Juniper site: Juniper Networks
NEW QUESTION # 53
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