[2023] JN0-213 PDF Questions - Perfect Prospect To Go With PassReview Practice Exam
Juniper JN0-213 Pdf Questions - Outstanding Practice To your Exam
The JN0-213 exam covers various topics such as cloud networking concepts, cloud deployment models, virtualization, Juniper Networks cloud-based solutions, and much more. The candidates who pass JN0-213 exam will have a strong foundation in cloud computing and will be able to apply their knowledge in real-world scenarios. Additionally, the exam also covers the basics of Juniper Networks' cloud-based solutions, which are highly in demand in the industry.
The JN0-213 exam is a 90-minute exam that consists of 65 multiple-choice questions. JN0-213 exam tests your knowledge and skills in various areas, including cloud networking concepts, Juniper Networks cloud networking architectures, Juniper Networks cloud networking technologies, and Juniper Networks cloud networking operations. JN0-213 exam is designed to test the candidate's understanding of cloud networking concepts and how to apply them to Juniper Networks cloud networking technologies.
NEW QUESTION # 20
What is the networking service of OpenStack?
- A. Barbican
- B. Heat
- C. ironic
- D. Neutron
Answer: D
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 # 21
Which Docker component builds, runs, and distributes Docker containers?
- A. containerd
- B. docker registry
- C. dockerd
- D. docker cli
Answer: C
Explanation:
Explanation
The Docker component that builds, runs, and distributes Docker containers is dockerd. Dockerd is the persistent process that manages containers. Docker uses different binaries for different tasks. For example, it uses the docker binary for CLI commands and dockerd for the daemon process.
NEW QUESTION # 22
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.
Answer: D
Explanation:
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.
NEW QUESTION # 23
Which two statements about Kubernetes are correct? (Choose two.)
- A. Each container within a pod has a unique IP address.
- B. A ClusterlP service exposes pods to internal traffic only
- C. All containers within a pod share the same IP address.
- D. A ClusterlP service exposes pods to internal and external traffic.
Answer: B,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 # 24
Which component of Kubernetes runs on all nodes and ensures that the containers are running in a pod?
- A. kubelel
- B. kube-proxy
- C. kube controller
- D. container runtime
Answer: A
Explanation:
Explanation
The kubelet is a component of Kubernetes that runs on all nodes in the cluster and ensures that containers are running in a pod910. It takes a set of PodSpecs that are provided through various mechanisms and ensures that the containers described in those PodSpecs are running and healthy
NEW QUESTION # 25
Your company has a Web app hosted in Kubernetes with a fluctuating number of pods.
In this scenario, which Kubernetes service type would provide equal access to all nodes using a single URL?
- A. LoadBalancer
- B. ExternalName
- C. ClusterIP
- D. NodePort
Answer: A
Explanation:
Explanation
The LoadBalancer service type in Kubernetes exposes the service externally using a cloud provider's load balancer67. NodePort and ClusterIP services, to which the external load balancer routes, are automatically created
NEW QUESTION # 26
Which two statements are true about virtual networks? (Choose two.)
- A. Virtual networks are limited to a single device.
- B. Virtual networks are available only as part of a cloud orchestration system.
- C. Virtual networks are available on common Linux distributions.
- D. Virtual networks are able to span multiple devices.
Answer: C,D
Explanation:
Explanation
Virtual networks are logical networks that are decoupled from the underlying network hardware. This decoupling allows network administrators to manage their networks independently of the physical network topology. As such, virtual networks can span multiple devices, allowing for a high degree of flexibility and scalability. Furthermore, virtual networks are available on common Linux distributions, allowing for easy deployment and management.
NEW QUESTION # 27
Which two statements are true regarding isolated namespaces in Juniper Cloud-Native Contrail Networking (CN2)? (Choose two.)
- A. Pods in isolated namespaces can communicate with pods in non-isolated namespaces.
- B. Pods in isolated namespaces can only communicate with pods in the same namespace.
- C. Pods in isolated namespaces can reach services in non-isolated namespaces.
- D. Pods in isolated namespaces can only reach services in the same namespace.
Answer: B,D
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 # 28
You have started a container in Docker, made configuration changes to it, and stopped the container. You notice the next time that you execute the docker run command, the changes have not persisted.
What is the problem?
- A. Docker images need to be recompiled to make any changes.
- B. The docker load command must be used to persist the change.
- C. The docker exec command needs to be run first to save and exit the running container.
- D. The docker run command starts a new copy of the container, not the existing version.
Answer: D
Explanation:
Explanation
Docker containers are designed to be ephemeral, meaning they run based on their current configuration. When a Docker container is stopped, it does not automatically save changes made during its runtime. When you execute docker run, it starts a new instance of the container, not an existing version with its changes[14-16]. If you want to persist changes between runs, you need to commit changes to a new Docker image or use Docker volumes for data persistence[14-16]. References from Juniper site: Stack Overflow, Docker Docs
NEW QUESTION # 29
Which two features are provided by CN2? (Choose two.)
- A. isolated namespaces
- B. role-based access control
- C. application firewall
- D. user-defined virtual networks
Answer: A,D
Explanation:
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.
NEW QUESTION # 30
What is the name of the Docker container runtime?
- A. containerd
- B. dockerd
- C. cri-o
- D. docker cl
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 # 31
Which two Linux commands would you use to show the amount of RAM in your system? (Choose two.)
- A. cat /proc/meminto
- B. free -h
- C. df -h
- D. cat /proc/cpuinfo
Answer: A,B
Explanation:
Explanation
he free -h command in Linux displays the total amount of free and used physical and swap memory in the system, as well as the buffers used by the kernel89. The cat /proc/meminfo command displays real-time information about the system's memory usage as well as the buffers and shared memory used by the kernel1
NEW QUESTION # 32
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 shared data structures (DB/files).
- C. Application modules communicate through remote direct memory access
- 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 # 33
What are two available installation methods for an OpenShift cluster? (Choose two.)
- A. user-provisioned infrastructure
- B. installer-provisioned infrastructure
- C. kubeadm
- D. kubesprav
Answer: A,B
Explanation:
Explanation
There are two available installation methods for an OpenShift cluster. One is the installer-provisioned infrastructure method56, and the other is the user-provisioned infrastructure method56. References from Juniper site: VMware NSX Container Plugin, OpenShift Container Platform 4.10 Documentation
NEW QUESTION # 34
Which two statements are correct about an overlay network? (Choose two.)
- A. The overlay network is built using encapsulation tunnels.
- B. The overlay network provides physical connectivity between devices.
- C. The overlay network is the virtual network used to connect multiple virtual machines (VMs).
- D. The overlay network can only be built using a Layer 3 underlay network.
Answer: A,C
Explanation:
Explanation
An overlay network is a virtual network that is built on top of another network. Nodes in the overlay network are connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network45. For example, distributed systems such as peer-to-peer networks and client-server applications often overlay their own network connections over the physical network connections provided by the Internet
NEW QUESTION # 35
What are the two characteristics of the Network Functions Virtualization (NFV) framework? (Choose two.)
- A. It decouples the network control plane from the forwarding plane.
- B. It decouples the network software from the hardware.
- C. It implements virtualized tunnel endpoints.
- D. It implements virtualized network functions
Answer: B,D
Explanation:
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.
NEW QUESTION # 36
You are deploying CN2 using Kubernetes as your orchestrator.
In this scenario, which component contains the vRouter agent?
- A. kube-manager
- B. Ikube-scheduler
- C. Contrail controller
- D. worker node
Answer: D
Explanation:
Explanation
In a CN2 deployment using Kubernetes as the orchestrator, the vRouter agent is contained in the worker node.
The vRouter agent is responsible for managing the forwarding plane on each node in a Contrail cluster. It interacts with the kernel to manage the services and interfaces within the virtual networks.
NEW QUESTION # 37
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Juniper JN0-213 (Cloud, Associate (JNCIA-Cloud)) Certification Exam is a valuable certification for individuals who want to build their career in cloud computing. Cloud, Associate (JNCIA-Cloud) certification is designed for those who want to gain a foundational understanding of cloud networking and related technologies. JN0-213 exam validates the candidate's knowledge and skills in the Juniper Networks cloud-based networking technologies.
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