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

A Deployment is a Kubernetes object that allows you to perform a rolling update without disrupting services. A Deployment manages a ReplicaSet or a Pod and provides declarative updates for them. You can describe the desired state of your application using a Deployment, and it will change the actual state to the desired state at acontrolled rate. A Deployment also allows you to roll back to a previous version if something goes wrong during the update14.

The other options are incorrect because:

• A ReplicaSet is a Kubernetes object that ensures that a specified number of pod replicas are running at any given time. It does not provide any mechanism for updating or rolling back pods15.
• A Service is a Kubernetes object that defines a logical set of pods and a policy to access them. It does not provide any mechanism for updating or rolling back pods16.
• A Container is not a Kubernetes object, but rather a component of a Pod. A Pod is the smallest deployable unit of computing in Kubernetes. A Pod can contain one or more containers that share storage and network resources. A Pod does not provide any mechanism for updating or rolling back itself or its containers17.

References: Deployments, ReplicaSets, Services, Pods

Contour is an open-source Kubernetes ingress controller that provides dynamic configuration updates and makes use of the Envoy proxy as a data plane1. Envoy is an open-source edge and service proxy that can handle large volumes of network traffic between services in a cloud-native environment2. Contour leverages Envoy’s advanced features such as load balancing, health checking, dynamic service discovery, circuit breaking, rate limiting, and more3. Contour also integrates with Envoy’s external authorization filter to support external authentication and authorization providers4.

The other options are incorrect because:

• NSX Load Balancer is a VMware solution that provides L4 and L7 load balancing and ingress control for Kubernetes clusters5. It is not the data plane for Contour.
• Istio is an open-source service mesh that provides a uniform way to connect, secure, control, and observe services in a distributed system6. It is not the data plane for Contour.
• Prometheus is an open-source systems monitoring and alerting toolkit that can collect metrics from various sources, including Kubernetes clusters7. It is not the data plane for Contour.

References: Contour Overview, Envoy Overview, Contour Architecture, External Authorization Support, NSX Advanced Load Balancer, Istio Overview, Prometheus Overview

The command that has a valid syntax for scaling VMware Tanzu Kubernetes Grid cluster using Tanzu CLI is tanzu cluster scale --controlplane-machine-count 5 --worker-machine-count 10. The tanzu cluster scale command allows users to manually scale the number of control plane and worker nodes in a cluster5. The --controlplane-machine-count flag specifies the desired number of control plane nodes, while the --worker-machine-count flag specifies the desired number of worker nodes5. The other commands are invalid because they either use incorrect flags or omit the namespace flag when required5. References: Scale Clusters - VMware Docs

VMware vSphere 8 is the version of VMware vSphere that introduces the capability for provisioning a workload cluster using a cluster class (ClusterClass) from VMware Tanzu Mission Control. ClusterClass is a feature of Cluster API that allows users to define a reusable cluster configuration template and use it to create consistent clusters with a predefined shape and size. Tanzu Mission Control leverages ClusterClass to enable users to create Tanzu Kubernetes clusters in vSphere with Tanzu using a default cluster class. The default cluster class specifies the number of control plane nodes, worker nodes, and the resources allocated to each node. To use ClusterClass with Tanzu Mission Control, the vSphere environment must be running version 8.0 or later, and the Supervisor Cluster must be upgraded from vSphere 7.0U3.

The other options are incorrect because:

• VMware vCenter Server 6.7 Update 3 is not a version of VMware vSphere, but rather a version of VMware vCenter Server, which is the centralized management platform for vSphere environments. VMware vCenter Server 6.7 Update 3 does not support ClusterClass or Tanzu Mission Control.
• VMware vSphere 6.7 is an older version of VMware vSphere that does not support ClusterClass or Tanzu Mission Control. VMware vSphere 6.7 reached end of general support on October 15, 2022.
• VMware is not a version of VMware vSphere, but rather the name of the company that develops and sells VMware vSphere and other products.

References: [Introducing ClusterClass and Managed Topologies in Cluster API], [Provision a Cluster in vSphere with Tanzu using a Cluster Class], [A First Look at ClusterClass Deployments using Tanzu Kubernetes Grid 2.0], [VMware vCenter Server 6.7 Update 3 Release Notes], [VMware Product Lifecycle Matrix]

vSphere with Tanzu storage policies are converted to storage classes when they are assigned to namespaces. A storage class is a Kubernetes object that defines a set of parameters for provisioning persistent volumes1. A storage policy is a vSphere object that defines thecharacteristics of the underlying storage for a given workload2. When a vSphere administrator assigns a storage policy to a namespace, vSphere with Tanzu automatically creates a corresponding storage class in the namespace with the same name as the storage policy3. The storage class references the storage policy ID and allows DevOps engineers to use the storage policy for dynamic provisioning of persistent volumes3. References: Storage Classes - Kubernetes, Create Storage Policies for vSphere with Tanzu - VMware Docs, Assign Storage Policies to Namespaces - VMware Docs

To enable workload management in vSphere using NSX Advanced Load Balancer, an administrator needs to prepare two components on NSX Advanced Load Balancer in advance: the Service Engine Group and the NSX Advanced Load Balancer Controller1.

• The Service Engine Group is a logical group of Service Engines that share the same configuration and resources. A Service Engine is a virtual machine that handles the data plane operations of NSX Advanced Load Balancer, such as load balancing, health monitoring, SSL termination, and more2. The administrator needs to configure a Service Engine Group for each Supervisor Cluster that will use NSX Advanced Load Balancer as the load balancer provider1.
• The NSX Advanced Load Balancer Controller is a virtual machine that handles the control plane operations of NSX Advanced Load Balancer, such as configuration, analytics, orchestration, and management2. The administrator needs to deploy and configure the NSX Advanced Load Balancer Controller VM in the management network of the vSphere environment where workload management will be enabled1.

The other options are incorrect because:

• The NSX Controller is not a component of NSX Advanced Load Balancer, but rather a component of NSX-T Data Center. The NSX Controller is a clustered virtual appliance that provides the control plane functions for logical switching and routing3. It is not required for enabling workload management in vSphere using NSX Advanced Load Balancer.
• Providing connectivity to NSX Manager is not a component of NSX Advanced Load Balancer, but rather a prerequisite for enabling workload management in vSphere using NSX-T Data Center. The NSX Manager is a virtual appliance that provides the management plane functions for NSX-T Data Center3. It is not required for enabling workload management in vSphere using NSX Advanced Load Balancer.
• The Avi Kubernetes Operator is not a component of NSX Advanced Load Balancer, but rather an optional tool that can be used to automate the installation and configuration of NSX Advanced Load Balancer on Kubernetes clusters4. It is not required for enabling workload management in vSphere using NSX Advanced Load Balancer.

References: Install and Configure the NSX Advanced Load Balancer for vSphere with Tanzu with NSX, NSX Advanced Load Balancer Architecture, NSX-T Data Center Architecture, Avi Kubernetes Operator

The command that can be used to upgrade a VMware Tanzu Kubernetes Cluster that is managed by VMware Tanzu Mission Control is tmc cluster upgrade [version] . This command allows you to upgrade a managed cluster to a newer version of Kubernetes that is supported by Tanzu Mission Control5. The version flag is optional and specifies the target version of Kubernetes. If not specified, the command upgrades the cluster to the latest available version5. The clustername argument is required and specifies the name of the cluster to upgrade5. References: Upgrade Kubernetes on Your Cluster - VMware Docs

VMware Tanzu Kubernetes Grid is an enterprise-ready Kubernetes runtime that streamlines operations across multi-cloud infrastructure1. Tanzu Kubernetes Grid natively integrates with the following VMware products:

• NSX Advanced Load Balancer: A solution that provides L4 and L7 load balancing and ingress control for Kubernetes clusters. NSX Advanced Load Balancer can be used as the default load balancer provider for both management and workload clusters on vSphere, AWS, Azure, and other platforms2.
• NSX-T Data Center: A network virtualization and security platform that provides consistent networking and security for applications running across private and public clouds. NSX-T Data Center can be used as the default network plugin for both management and workload clusters on vSphere, AWS, Azure, and other platforms3.
• vSphere with VMware Tanzu: A solution that enables you to run Kubernetes workloads natively on a vSphere cluster, and to provision and manage Kubernetes clusters using the vSphere Client. vSphere with VMware Tanzu can be used as the platform to deploy Tanzu Kubernetes Grid management clusters and workload clusters4.

The other options are incorrect because:

• BOSH is an open-source tool that provides release engineering, deployment, lifecycle management, and monitoring of distributed systems. BOSH is not a VMware product, nor does it natively integrate with Tanzu Kubernetes Grid5.
• vRealize Network Insight is a solution that delivers intelligent operations for software-defined networking and security. It helps optimize network performance and availability with visibility and analytics across virtual and physical networks. vRealize Network Insight is not natively integrated with Tanzu Kubernetes Grid6.
• Tanzu Mission Control is a centralized management platform for consistently operating and securing your Kubernetes infrastructure and modern applications across multiple teams and clouds. Tanzu Mission Control is not natively integrated with Tanzu Kubernetes Grid, but rather works with it as a separate product7.

References: VMware Tanzu Kubernetes Grid Overview, NSX Advanced Load Balancer, NSX-T Data Center, vSphere with VMware Tanzu, BOSH, vRealize Network Insight, Tanzu Mission Control Overview