合格させるJuniper JN0-213にはFast2test提供の試験問題集で2024年04月更新
完全版最新のJN0-213問題集、100%カバー率問題と解答があなたをリアル試験で合格させる
JN0-213認定は、ITプロフェッショナルがクラウドネットワークの専門知識を示し、スキルを認められる優れた方法です。この試験に合格することで、候補者はJuniper Networksテクノロジーを使用してクラウドベースのソリューションを設計、実装、および管理する能力を証明することができます。これにより、彼らのキャリアを進め、IT業界で新しい機会を開くことができます。
質問 # 27
Which two statements are correct about OpenStack networks? (Choose two.)
- A. It is possible to enable DHCP for a subnet in an OpenStack network.
- B. It is not possible to specify a subnet address in an OpenStack network.
- C. It is possible to share networks with other projects in an OpenStack network.
- D. It is not possible to add host routes in the DHCP settings in an OpenStack network.
正解：A、C
解説：
Explanation
In OpenStack networks, it is possible to share networks with other projects7. Also, it is possible to enable DHCP for a subnet in an OpenStack network7. References from Juniper site: OpenStack Documentation
質問 # 28
You are asked to run a container in a Kubernetes environment.
What should you do to accomplish this task?
- A. Create a WYSYG definition for the container and its resources.
- B. Define an XML configuration for the container and its resources.
- C. Create a JINJA2 template for the container and its resources.
- D. Define a YAML manifest for the container and its resources.
正解：D
解説：
Explanation
To run a container in a Kubernetes environment, you should define a YAML manifest for the container and its resources2. YAML manifests are used to define Kubernetes objects, such as pods or services. These manifests describe the desired state of the system2.
質問 # 29
Which two statements are true regarding isolated namespaces in Juniper Cloud-Native Contrail Networking (CN2)? (Choose two.)
- A. Pods in isolated namespaces can reach services in non-isolated namespaces.
- B. Pods in isolated namespaces can only reach services in the same namespace.
- C. Pods in isolated namespaces can communicate with pods in non-isolated namespaces.
- D. Pods in isolated namespaces can only communicate with pods in the same namespace.
正解：B、D
解説：
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.
質問 # 30
Which component of a software-defined networking (SDN) controller defines where data packets are forwarded by a network device?
- A. the control plane
- B. the operational plane
- C. the forwarding plane
C the management plane
正解：C
解説：
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
質問 # 31
The openstack user list command uses which OpenStack service?
- A. Neutron
- B. Keystone
- C. Cinder
- D. Nova
正解：B
解説：
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
質問 # 32
What are two characteristics of the OpenShift Assisted Installer? (Choose two.)
- A. It does not support bare-metal deployments.
- B. It offers REST APIs for the configuration and installation
- C. It provides full feature support and customizations.
- D. It uses one of the control plane nodes as a bootstrap node.
正解：B、D
解説：
Explanation
The OpenShift Assisted Installer uses one of the control plane nodes as a bootstrap node12. It also offers REST APIs for the configuration and installation12.
質問 # 33
Which two features are provided by CN2? (Choose two.)
- A. user-defined virtual networks
- B. isolated namespaces
- C. role-based access control
- D. application firewall
正解：A、B
解説：
Explanation
According to the CN2 datasheet1, CN2 supports "multiple isolated namespaces for each tenant, allowing for overlapping IP addresses among tenants" and "user-defined virtual networks that can span across clusters, regions, and clouds". Other features of CN2 include cloud-native networking, NetOps-driven automation, edge and remote compute, enhanced observability, and ultra-fast, high performance1.
質問 # 34
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. Romana
- B. ADOT
- C. Canal
- D. KubeVirt
正解：D
解説：
Explanation
KubeVirt is a Kubernetes add-on that allows you to run and manage legacy virtual machine workloads alongside container workloads within a Kubernetes deployment. According to the KubeVirt website, KubeVirt is "a virtual machine management add-on for Kubernetes" that "aims to provide a common ground for virtualization solutions on top of Kubernetes". Other Kubernetes add-ons that are mentioned in the question are Canal, which is a network policy provider that combines Flannel and Calico; ADOT, which is a distribution of the OpenTelemetry Collector that supports tracing and metrics collection for AWS services; and Romana, which is a network and security automation solution that supports multiple network topologies and policies.
質問 # 35
Which statement is true about containers?
- A. Containers perform abstraction at the physical layer.
- B. Containers share a copy of the host's operating system binaries.
- C. Containers are slower to boot than virtual machines.
- D. Containers perform abstraction at the application layer.
正解：D
解説：
Explanation
Containers perform abstraction at the application layer12. They are executable units of software in which application code is packaged along with its libraries and dependencies, in common ways so that the code can be run anywhere-whether it be on desktop, traditional IT or the cloud12.
質問 # 36
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 -o yaml
- C. oc get pods -o wide
- D. oc get pods
正解：C
解説：
Explanation
To view pods with their IP addresses in OpenShift, you would use the command oc get pods -o wide23. This command provides additional information such as the IP address and the node where the pod is located23.
References from Juniper site: OpenShift Documentation, Stack Overflow
質問 # 37
Which two statements are true about the CN2 controller? (Choose two.)
- A. A CN2 controller communicates with other CN2 controllers using XMPP.
- B. A CN2 controller communicates with other CN2 controllers using BGP.
- C. A CN2 controller communicates with CN2 vRouters using BGP.
- D. A CN2 controller communicates with CN2 vRouters using XMPP.
正解：B、D
解説：
Explanation
A CN2 controller communicates with CN2 vRouters using XMPP (Extensible Messaging and Presence Protocol) and with other CN2 controllers using BGP (Border Gateway Protocol). XMPP is used for control plane communication, while BGP is used for routing updates between controllers.
質問 # 38
What are two reasons to create a Kubernetes deployment rather than work with pods directly? (Choose two.)
- A. A deployment ensures that the desired number of pods is running at all times.
- B. A deployment simplifies pod updates and roll-outs.
- C. A deployment is ephemeral and therefore requires less configuration.
- D. A deployment contains imperative instructions on how to re-create a pod if a pod dies unexpectedly.
正解：A、B
解説：
Explanation
A Kubernetes deployment is a resource object in Kubernetes that provides declarative updates to applications. It allows you to describe an application's life cycle, such as which images to use for the app, the number of pods there should be, and the way in which they should be updated1. Two reasons to create a Kubernetes deployment rather than work with pods directly are:
A deployment ensures that the desired number of pods is running at all times1. If a pod crashes, the Deployment will automatically re-create it.
A deployment simplifies pod updates and roll-outs1. It allows you to describe a desired state in its specification and the Deployment controller changes the actual state to the desired state at a controlled rate1. References from Juniper site: Kubernetes Documentation
質問 # 39
Which two statements are true about VRF instances? (Choose two.)
- A. VRFs share a single routing table.
- B. Each VRF has its own routing table.
- C. VRFs enable overlapping IP addresses within the same cloud network.
- D. VRFs do not enable overlapping IP addresses within the same cloud network.
正解：B、C
解説：
Explanation
Virtual Routing and Forwarding (VRF) is a technology that allows multiple instances of a routing table to coexist within the same router at the same time. Because the routing instances are independent, overlapping IP addresses can be used without conflict45. Each VRF has its own routing table4. References from Juniper site: Wikipedia, Cisco
質問 # 40
What is the function that enables CN2 to manage its resources and interact with the kube-api?
- A. the management plane
- B. the configuration plane
- C. the control plane
- D. the data plane
正解：B
解説：
Explanation
The configuration plane is the function that enables CN2 to manage its resources and interact with the kube-api. The configuration plane is responsible for storing and managing all configuration data in a Contrail cluster. It provides APIs for other components to retrieve this data. This allows CN2 to manage its resources and interact with the kube-api.
質問 # 41
In the CN2 architecture, which component integrates with the orchestrator to listen for changes and take action on any events affecting network resources?
- A. contrail-k8s-kubemanaqer
- B. kube-a pi server
- C. contrail-vrouter-agent
- D. cni.bin
正解：A
解説：
Explanation
contrail-k8s-kubemanager is the component in the CN2 architecture that integrates with the orchestrator (such as Kubernetes or OpenShift) to listen for changes and take action on any events affecting network resources. According to the CN2 components documentation2, contrail-k8s-kubemanager is "the interface between Kubernetes resources and Contrail resources" that "watches the kube-apiserver for changes to regular Kubernetes resources such as service and namespace and acts on any changes that affect the networking resources". Other components in the CN2 architecture are contrail-k8s-apiserver2, which is an aggregated API server that manages all Contrail resources; cni.bin, which is a binary file that implements the Container Network Interface (CNI) specification for CN2; and contrail-vrouter-agent, which is a pod that runs on every node and communicates with the CN2 control plane to program the data plane.
質問 # 42
Which container runtime engine is used by default in OpenShift?
- A. runC
- B. cri-o
- C. containerd
- D. Docker
正解：B
解説：
Explanation
The default container runtime engine used by OpenShift is cri-o. CRI-O is an open source, community-driven container engine. Its primary goal is to replace the Docker service as the container engine for Kubernetes implementations, such as OpenShift Container Platform3.
質問 # 43
What are the two characteristics of the Network Functions Virtualization (NFV) framework? (Choose two.)
- A. It decouples the network software from the hardware.
- B. It implements virtualized network functions
- C. It implements virtualized tunnel endpoints.
- D. It decouples the network control plane from the forwarding plane.
正解：A、B
解説：
Explanation
The two characteristics of the Network Functions Virtualization (NFV) framework are that it implements virtualized network functions (VNFs) and that it decouples the network software from the hardware. According to the NFV overview by VMware3, NFV is "designed to deliver the network services needed to support an infrastructure totally independent from hardware by decoupling network functions from proprietary purpose-built hardware appliances" and that "the software that provides these network services are known as virtual network functions (VNFs) and run on generic hardware". Other characteristics that are mentioned in the question are related to Software Defined Networking (SDN), not NFV. SDN separates the network control plane from the forwarding plane and implements virtualized tunnel endpoints.
質問 # 44
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ジュニパーJN0-213（クラウド、アソシエイト（JNCIA-Cloud））試験は、クラウドネットワーキングの概念、テクノロジー、およびベストプラクティスに関する候補者の知識をテストする認定試験です。この試験は、ネットワーキングとクラウドコンピューティングを基本的に理解し、クラウドネットワーキングのスキルと知識を向上させたい個人向けに設計されています。 JN0-213試験は、JNCIA-Cloud認定トラックの最初のステップであり、より高度なジュニパークラウド認定の前提条件です。
Juniper JN0-213（Cloud、Associate（JNCIA-Cloud））試験は、クラウドネットワークに関する知識とスキルを習得したい個人向けの認定試験です。この認定試験は、世界中のビジネスや組織にネットワークソリューションを提供するリーディングプロバイダーであるJuniper Networksによって提供されています。JN0-213試験は、ルーティングやスイッチングを含むネットワークの基本的な理解を持ち、クラウドコンピューティングの知識とスキルを拡大したい個人を対象としています。
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