Top Juniper JN0-214 Courses Online - Updated [Dec-2024]
JN0-214 Practice Dumps - Verified By DumpsValid Updated 67 Questions
NEW QUESTION # 29
Which container runtime engine is used by default in OpenShift?
- A. cri-o
- B. runC
- C. Docker
- D. containerd
Answer: A
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 Platform.
NEW QUESTION # 30
Click the Exhibit button.
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. The myvSRX instance is using a default image.
- B. The c using a custom flavor.
- C. The myvSRX instance is part of a default network.
- D. The myvSRX instance is currently running.
Answer: B,D
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 # 31
What is the most privileged protection ring?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
In computer science, hierarchical protection domains, often called protection rings, are mechanisms to protect data and functionality from faults and malicious behavior. Rings are arranged in a hierarchy from most privileged (most trusted, usually numbered zero) to least privileged (least trusted, usually with the highest ring number). On most operating systems, Ring
0 is the level with the most privileges and interacts most directly with the physical hardware.
NEW QUESTION # 32
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 tunnel endpoints.
- C. It implements virtualized network functions
- D. It decouples the network control plane from the forwarding plane.
Answer: A,C
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 VMware, 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 # 33
Which two statements about Kubernetes are correct? (Choose two.)
- A. A ClusterlP service exposes pods to internal traffic only.
- B. A ClusterlP service exposes pods to internal and external traffic.
- C. Each container within a pod has a unique IP address.
- D. All containers within a pod share the same IP address.
Answer: A,D
Explanation:
In Kubernetes, all containers within a pod share the same IP address. A ClusterIP service exposes pods to internal traffic only.
NEW QUESTION # 34
Which two statements are correct about Kubernetes resources? (Choose two.)
- A. A ClusterIP type service can only be accessed within a Kubernetes cluster.
- B. A daemonSet ensures that a replica of a pod is running on all nodes.
- C. NodePort service exposes the service externally by using a cloud provider load balancer.
- D. A deploymentConfig is a Kubernetes resource.
Answer: A,B
Explanation:
A daemonSet in Kubernetes ensures that a replica of a pod is running on all nodes. A ClusterIP type service can only be accessed within a Kubernetes cluster.
NEW QUESTION # 35
Which two statements about overlay virtual networks are true? (Choose two.)
- A. Overlay virtual networks use Juniper proprietary protocols.
- B. Overlay virtual networks allow both Layer 2 and Layer 3 communication.
- C. Overlay virtual networks only allow Layer 3 communication.
- D. Overlay virtual networks work well on an IP spine-and-leaf topology.
Answer: B,D
Explanation:
Overlay virtual networks are virtual logical networks constructed on top of an existing network using network virtualization technologies. They decouple network services from the physical networking and interconnection technologies on the underlay network. Two true statements about overlay virtual networks are:
Overlay virtual networks work well on an IP spine-and-leaf topology. They can be created over underlay networks using network virtualization technologies.
Overlay virtual networks allow both Layer 2 and Layer 3 communication. They can serve not only different services (such as multiple departments) of the same tenant but also different tenants.
NEW QUESTION # 36
Which two statements are correct about containers? (Choose two.)
- A. Containers have faster boot times than VMs. www*
- B. Containers include the entire operating system.
- C. Containers require an underlying operating system.
- D. Containers reduce deployment efficiency.
Answer: A,C
Explanation:
Containers are lightweight because they don't need the extra load of a hypervisor, but run directly within the host machine's kernel. This means they start up almost instantly and use less RAM.
Images are constructed from layered filesystems and share common files, making disk usage and image downloads much more efficient. Containers are isolated from each other and the host system. They have their own filesystem and networking, and can be constrained to not allow root access outside the container. They run on top of a host operating system.
NEW QUESTION # 37
You want to quickly assign a specific combination of permissions to a set of users.
In this scenario, which OpenStack object should you create?
- A. image
- B. role
- C. project
- D. flavor
Answer: B
Explanation:
In OpenStack, a role is a set of permissions that determines what actions users can perform in a given context. Roles are assigned to user-project pairs. If you want to quickly assign a specific combination of permissions to a set of users, you should create a role.
NEW QUESTION # 38
In OpenShift, which node type is used to host your application containers?
- A. miner node
- B. control plane node
- C. worker node
- D. full node
Answer: C
Explanation:
In OpenShift, the worker node is used to host your application containers. Worker nodes are where all your coding adventures happen, and they can be virtual or physical.
NEW QUESTION # 39
What are two Kubernetes objects? (Choose two.)
- A. namespace
- B. service
- C. pod
- D. cluster
Answer: B,C
Explanation:
In Kubernetes, a Pod is the smallest and simplest unit in the Kubernetes object model that you create or deploy. A Pod represents processes running on your cluster. A Service in Kubernetes is an abstraction which defines a logical set of Pods and a policy by which to access them.
NEW QUESTION # 40
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. NodePort
- B. ExternalName
- C. LoadBalancer
- D. ClusterIP
Answer: C
Explanation:
The LoadBalancer service type in Kubernetes exposes the service externally using a cloud provider's load balancer. NodePort and ClusterIP services, to which the external load balancer routes, are automatically created.
NEW QUESTION # 41
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. on-demand self-service
- B. rapid elasticity
- C. broad network access
- D. resource pooling
Answer: B
Explanation:
The cloud computing feature that automatically increases or decreases the resources based on the demand is known as rapid elasticity. 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 increases.
NEW QUESTION # 42
Which Docker component builds, runs, and distributes Docker containers?
- A. docker registry
- B. dockerd
- C. containerd
- D. docker cli
Answer: B
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 # 43
You just uploaded a qcow2 image of a vSRX virtual machine in OpenStack.
In this scenario, which service stores the virtual machine (VM) image?
- A. Ironic
- B. Glance
- C. Neutron
- D. Nova
Answer: B
Explanation:
The service that stores the virtual machine (VM) image in OpenStack is Glance. Glance is the image service in OpenStack that allows you to discover, register, retrieve, and store virtual machine images.
NEW QUESTION # 44
Which two tools are used to deploy a Kubernetes environment for testing and development purposes? (Choose two.)
- A. minikube
- B. OpenStack
- C. oc
- D. kind
Answer: A,D
Explanation:
Minikube and kind are two tools that are commonly used to deploy a Kubernetes environment for testing and development purposes.
NEW QUESTION # 45
Which two statements are correct about OpenShift monitoring? (Choose two.)
- A. OpenShifis able to configure customized alerts.
- B. OpenShifis not able to configure customized alerts.
- C. OpenShifhas its own monitoring framework.
- D. OpenShifmonitoring is not compatible with Grafana.
Answer: A,C
Explanation:
OpenShift includes a preconfigured, preinstalled, and self-updating monitoring stack that provides monitoring for core platform components. You also have the option to enable monitoring for user- defined projects. This means OpenShift has its own monitoring framework (B) and is able to configure customized alerts (D).
NEW QUESTION # 46
Which cloud automation tool uses YAML playbooks to install software and tools on servers?
- A. Heat
- B. Terraform
- 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 # 47
Click the Exhibit button.
You apply the manifest file shown in the exhibit.
Which two statements are correct in this scenario? (Choose two.)
- A. The created pods are receiving traffic on port 80.
- B. Four pods are created as a result of applying this manifest.
- C. This manifest is used to create a deployment.
- D. This manifest is used to create a
Answer: B,C
Explanation:
This manifest is used to create a deployment, which is a Kubernetes resource that manages a set of pods with the same configuration. A deployment can also provide declarative updates, scaling, and rolling back for the pods. The created pods are not receiving traffic on port 80, because the manifest does not specify a service or a selector for the deployment. A service is another Kubernetes resource that defines a logical set of pods and a policy to access them. A selector is a label query that matches the pods that belong to the service. Four pods are created as a result of applying this manifest, because the manifest specifies replicas: 4 in the spec section of the deployment.
NEW QUESTION # 48
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