2V0-71.23 Exam Dumps - VMware Certification Questions and Answers

The role of the Tanzu Kubernetes Grid Service is to provision Kubernetes clusters that integrate with the underlying vSphere Namespace resources and Supervisor Services. The Tanzu Kubernetes Grid Service is a component of vSphere with Tanzu that provides self-service lifecycle management of Tanzu Kubernetes clusters3. A Tanzu Kubernetes cluster is an opinionated installation of Kubernetes that runs on top of the Supervisor Cluster and inherits its capabilities, such as storage integration, pod networking, load balancing, authentication, and authorization4. The Tanzu Kubernetes Grid Service exposes three layers of controllers to manage the lifecycle of a Tanzu Kubernetes cluster: Cluster API, Virtual Machine Service, and Tanzu Kubernetes Release Service3. References: Tanzu Kubernetes Grid Service Architecture - VMware Docs, What Is a Tanzu Kubernetes Cluster? - VMware Docs

Multus is an open-source container network interface plugin for Kubernetes that enables attaching multiple network interfaces to pods. Contour is an open-source Kubernetes ingress controller that provides dynamic configuration updates and makes use of the Envoy proxy as a data plane. By installing these two packages in a VMware Tanzu Kubernetes Grid cluster, an administrator can create a pod with two interfaces and use Contour to route the application and management traffic to different networks.

The other options are incorrect because:

• external-dns is a package that synchronizes exposed Kubernetes services and ingresses with DNS providers. It does not provide multiple interfaces for pods.
• cert-manager is a package that automates the management and issuance of TLS certificates from various sources. It does not provide multiple interfaces for pods.
• qrafana is not a valid package name. The correct spelling is Grafana, which is a package that provides visualization and analytics for metrics collected by Prometheus. It does not provide multiple interfaces for pods.

References: Install Multus and Whereabouts for Container Networking, Install Contour for Ingress

A service mesh is a dedicated infrastructure layer that you can add to your applications to provide capabilities like observability, traffic management, and security, without adding them to your own code. A service mesh consists of network proxies paired with each service in an application and a set of management processes. The proxies are called the data plane and the management processes are called the control plane. The data plane intercepts calls between different services and processes them; the control plane is the brain of the mesh that configures and monitors the data plane1. A service mesh makes communication between applications possible, structured, and observable by providing features such as load balancing, service discovery, encryption, authentication, authorization, routing, retries, timeouts, fault injection, metrics, logs, and traces2.

The other options are incorrect because:

• Provides dynamic application load balancing and autoscaling across multiple clusters and multiple sites is a description of VMware Tanzu Service Mesh Global Namespaces feature3, which is built on top of a service mesh. It is not the purpose of a service mesh in general.
• Provides a centralized, global routing table to simplify and optimize traffic management is a description of VMware Tanzu Service Mesh Global Mesh Network feature4, which is also built on top of a service mesh. It is not the purpose of a service mesh in general.
• Provides service discovery across multiple clusters is a partial description of a service mesh, but it does not capture the full scope of its purpose. Service discovery is one of the features that a service mesh provides, but it is not the only one.

References: What’s a service mesh?, The Istio service mesh, Service mesh - Wikipedia

Two valid options for obtaining kubectl config file in Tanzu Kubernetes environment are:

• Download from vSphere UI: For Tanzu Kubernetes clusters that are deployed on vSphere with Tanzu, you can download the kubeconfig file from the vSphere UI by selecting the cluster and clicking on the Download kubeconfig button1. This file contains the credentials and connection information for the cluster, which you can use to access it with kubectl1.
• Access from VMware Tanzu Mission Control: For Tanzu Kubernetes clusters that are attached or provisioned by VMware Tanzu Mission Control, you can access the kubeconfig file from the Tanzu Mission Control console by selecting the cluster and clicking on the Access this cluster button2. This will generate a YAML file that you can download and use to connect to the cluster with kubectl2.

References: Download a Kubeconfig File for a Tanzu Kubernetes Cluster - VMware Docs, Connect to a Managed Cluster with kubectl - VMware Docs