Juniper JN0-213 Practice Test - Questions Answers, Page 6

An OpenShift route is a way to provision external access to a service. A route exposes a service at a host name, such as www.example.com, that external clients can use to access the service.A route can also specify security options, such as TLS termination, and load balancing options, such as round robin or least connection

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

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

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.

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.

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.

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.

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.

In OpenStack, aroleis 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 role1. Reference from Juniper site:OpenStack Docs