VMware Updated 3V0-22.25 Exam Questions and Answers by nikita

The required prerequisite is that VMware Tools must be installed and running in the target virtual machine. In VCF Operations, a recommendation can be associated with a remediation action, and supported actions can be triggered from alert recommendations when automation is configured. However, guest-level operations depend on VMware Tools because VCF Operations must communicate cleanly with the guest operating system through vCenter. The official action documentation for Reboot Guest OS for VM states that the action checks whether VMware Tools is installed on the target virtual machine, because VMware Tools is required. If VMware Tools is not installed or is installed but not running, the reboot action does not run and the job is reported as failed in Recent Tasks . The Power Off Allowed flag applies to certain reconfiguration actions, such as changing CPU or memory when the VM may need to be powered off; it is not the control for guest OS reboot . Payload templates are for outbound notifications, and VM compatibility is unrelated. Reference topic: Objective 4.9 – VCF Operations Troubleshooting Tools and Methodologies / Alert Recommendations / Automated Actions / Reboot Guest OS for VM .

The administrator must configure the overcommit ratio and activate the appropriate custom profile at the datastore policy level. In VCF Operations, the Allocation Model is enabled from the policy Capacity card by unlocking Allocation Model and setting the overcommit ratio for CPU, memory, or disk space. For a Datastore , the allocation model specifically allows the administrator to set the overcommit ratio for datastore disk space, which controls how allocated storage capacity is calculated rather than relying only on demand-based usage . The second requirement is to use the current disk space usage of an existing VM to determine how many similar VMs can fit on the datastore. That is handled by a custom profile . Custom profiles define a hypothetical VM configuration and calculate VM remaining for objects such as datastores, datastore clusters, and cluster compute resources . The custom profile wizard also allows metric values to be copied from an existing object, including by VM name, vCenter, VM tag, or custom group . Peak utilization and capacity buffer do not enable allocation modeling or define VM-fit profiles. Reference topic: Objective 4.2 – Manage VCF Capacity / Allocation Model / Custom Profiles / Policy Capacity Settings .

The administrator must create the scheduled action directly from the Rightsize feature. VCF Operations Rightsize is the capacity-optimization workflow used to adjust CPU and memory allocations for oversized and undersized virtual machines. For oversized VMs, the administrator selects the target VM, opens the resize workflow, reviews the recommended vCPU and memory reduction, and can use the edit controls to modify the recommendation before execution. In this scenario, the default recommendation is a 4 vCPU reduction, but the agreed action is only 50 percent of that value, so the administrator adjusts the reduction to 2 vCPU . The Rightsize page also provides SCHEDULE ACTION , which opens a scheduling dialog so the resize action can run later during the maintenance window; scheduled jobs are then managed through Automation Central . Automation Central is used to manage scheduled jobs, but the rightsizing task is initiated from Rightsize. Reclaim is used for powered-off VMs, idle VMs, snapshots, and orphaned disks, not vCPU rightsizing. vSphere scheduled tasks bypass VCF Operations recommendations. Reference topic: Objective 4.2 – Manage VCF Capacity / Rightsize Workloads / Oversized VMs / Scheduled Actions .