Pass the VMware VCP-TKO 2023 2V0-71.23 Questions and answers with CertsForce

The purpose of setting ENABLE_AUDIT_LOGGING=true during a cluster deployment is to log metadata about all requests made to the Kubernetes API server. This enables auditing of the cluster activities and helps with security and compliance. The audit logs are stored in /var/log/kubernetes/audit.log on the control plane node and can be accessed by the cluster administrator. The audit logs are generated based on an audit policy file that defines what events should be recorded and what data they should include12

References: 1: https://docs.vmware.com/en/VMware-Tanzu-Kubernetes-Grid/1.6/vmware-tanzu-kubernetes-grid-16/GUID-troubleshooting-tkg-audit-logging.html  2: https://kubernetes.io/docs/tasks/debug/debug-cluster/audit/

The control plane nodes are the nodes that run the Kubernetes control plane components, such as the API server, the scheduler, the controller manager, and etcd. The control plane nodes are responsible for managing the cluster state and orchestrating workload operations. The possible counts of control plane nodes in a Tanzu Kubernetes Grid workload cluster are 1 or 3. The control plane must have an odd number of nodes to ensure quorum and high availability. A single control plane node is suitable for development or testing purposes, while three control plane nodes are recommended for production clusters23.

References: Deploy Workload Clusters - VMware Docs, Concepts and References - VMware Docs

VMware Aria Operations for Applications is a SaaS solution that provides observability for modern applications across multiple clouds and platforms. It collects and analyzes traces, metrics, and logs from various sources, including Tanzu Kubernetes Grid clusters managed by Tanzu Mission Control. To enable the integration between VMware Aria Operations for Applications and Tanzu Mission Control, an administrator can use the integrations tab in Tanzu Mission Control UI and follow the steps to configure the connection.

The other options are incorrect because:

VMware Aria Operations for Applications is not enabled by default in Tanzu Mission Control. An administrator has to explicitly enable the integration and provide the required credentials and settings.

An administrator cannot login to VMware Aria Operations for Applications and enable Tanzu Mission Control integration from the administration menu. The integration has to be initiated from Tanzu Mission Control UI.

An administrator cannot download and install the VMware Aria Operations Observations agent from Tanzu CLI. The Observations agent is automatically installed on the clusters managed by Tanzu Mission Control once the integration is enabled.

References: Configure Integration with Tanzu Mission Control, Introducing the Tanzu Mission Control Integration for VMware Aria Automation

The Kubernetes project that vSphere with Tanzu Supervisor Cluster uses to automate the lifecycle management of Tanzu Kubernetes Grid Clusters is Cluster API. Cluster API is a Kubernetes project that provides declarative APIs for cluster creation, configuration, and management. Cluster API uses a set of custom resource definitions (CRDs) to represent clusters, machines, and other objects. Cluster API also relies on providers to implement the logic for interacting with different infrastructure platforms5. vSphere with Tanzu Supervisor Cluster uses Cluster API to deploy and manage Kubernetes clusters on vSphere 7 across multiple vCenter Server instances and/or multiple data centers via Tanzu Mission Control6. References: Taking Kubernetes to the People: How Cluster API Promotes Self … - VMware, kubernetes-sigs/cluster-api - GitHub

A NetworkPolicy is a Kubernetes object that controls what traffic is allowed to and from selected pods and network endpoints6. NetworkPolicy objects contain the following information:

The pods that are affected by this policy (the pod selector)

The traffic that is allowed for these pods (the ingress and egress rules)

The network entities that are allowed or denied for this traffic (the selectors and IP blocks)

By default, all pods in a cluster can communicate with each other and with any external network endpoint. A NetworkPolicy allows you to restrict this behavior by defining rules for pod isolation and network access. A NetworkPolicy is enforced by a network plugin that supports it6.

The other options are incorrect because:

An Ingress is a Kubernetes object that manages external access to services in a cluster, typically HTTP7. It does not control what traffic is allowed to and from selected pods and network endpoints.

A PodSecurityPolicy is a Kubernetes object that controls security-sensitive aspects of pod specification, such as running as privileged or using host networking8. It does not control what traffic is allowed to and from selected pods and network endpoints.

A Secret is a Kubernetes object that stores sensitive information, such as passwords or keys, in an encrypted form9. It does not control what traffic is allowed to and from selected pods and network endpoints.

References: Network Policies, Ingress, Pod Security Policies, Secrets

A tool that can be used to backup and restore workloads on clusters provisioned by the VMware Tanzu Kubernetes Grid Service is the Velero Plugin for VMware vSphere. The Velero Plugin for VMware vSphere is an extension of Velero, an open source tool that performs backup and restore of Kubernetes resources and persistent volumes5. The plugin leverages the snapshot capabilities of vSphere to create backups of Kubernetes workloads running on vSphere-managed infrastructure, such as VMware Cloud on AWS or VMware Cloud on Dell EMC5. The plugin also supports restoring backups to the same or different clusters, as well as migrating workloads across clusters5. References: Velero Plugin for VMware vSphere Documentation

The tanzu mc upgrade command is used to upgrade a management cluster to a newer version of Tanzu Kubernetes Grid. The command requires the name of the management cluster as an argument, and optionally the version to upgrade to. For example, toupgrade the management cluster named tanzu-mc01 to version v1.4.0, the command would be:

tanzu mc upgrade tanzu-mc01 --version v1.4.0

The other options are incorrect because:

kubectl management-cluster upgrade is not a valid command. The kubectl command is used to interact with Kubernetes clusters, not to upgrade them.

tanzu config use-context tanzu-mc01-admin@tanzu-mc01 is a command to switch the current context to the admin context of the management cluster named tanzu-mc01. It does not upgrade the cluster.

kubectl tanzu-mc01 upgrade is not a valid command. The kubectl command does not accept a cluster name as an argument, and there is no upgrade subcommand.

References: VMware Tanzu for Kubernetes Operations Getting Started, Upgrading Management Clusters

To create a vSphere Namespace, the correct steps are to use the vSphere web client, select Workload Management, select Namespaces tab, and click Create Namespace. A vSphere Namespace is a logical grouping of Kubernetes resources that can be used to isolate and manage workloads on a Supervisor Cluster1. To create a vSphere Namespace, a user needs to have the vSphere Client and the required privileges to access the Workload Management menu and the Namespaces tab2. From there, the user can select the Supervisor Cluster where to place the namespace, enter a name for the namespace, configure the network settings, set the resource limits, assign permissions, and enable services for the namespace2. References: Create and Configure a vSphere Namespace - VMware Docs, vSphere with Tanzu Concepts - VMware Docs