2V0-18.25 Sample Questions & Answers

Adding a host to vCenter places it in Evaluation Mode (or invalid state) by default if not auto-assigned. Even if vCenter has a license key available, the host object itself must be assigned the VVF license key to consume the capacity entitlement and function within the cluster.

To confirm the partition boundaries, the administrator must verify which hosts can see each other. 'esxcli vsan cluster get' reveals the local node's view of the cluster membership (Sub-Cluster UUID). If UUIDs differ between hosts, a partition exists.

The import validation checks for dependencies that would break mobility or standardization. VMs mounting ISOs from local datastores (non-shared storage) often cause validation failures because they prevent vMotion and violate the VVF standardized storage requirements.

If the DCUI is frozen, the administrator can try accessing the emergency shell (ALT+F1) on the physical console. If successful, they can restart management agents (/sbin/services.sh restart) without rebooting the host or affecting VM uptime. If this fails, a reboot (option C) might be necessary but is more disruptive.

The correct syntax typically involves confirming the action or specifying parameters. However, in the context of checking compliance specifically, the key parameter to initiate the check is usually implied or part of a different cmdlet like Test-VMHostProfileCompliance. Wait, looking at the command structure Invoke-VMHostProfile is not the standard compliance check cmdlet; Test-VMHostProfileCompliance is. If the question implies applying or checking, the blank likely refers to a parameter like -Confirm:$false to suppress prompts or a specific switch. BUT, for validating compliance, the standard command is Test-VMHostProfileCompliance. If the question is strictly 'Fill in the blank' for a hypothetical command shown: -Confirm is the most logical syntactical fit for PowerShell command safety toggles.

High CPU Ready time indicates the VM is ready to execute but waiting for the scheduler. With 16 vCPUs on a host with 24 physical cores, the scheduler must find 16 free physical cores (or logical if HT helps, but strict co-scheduling is less of an issue in modern versions, yet contention remains). If other VMs are busy, finding 16 free slots is difficult. The VM is likely oversized for the workload or the host is overcommitted, leading to high Ready time.

By default, vSphere HA uses the management network default gateway as the isolation address. If this IP is not pingable (e.g., firewall drops ICMP), HA reports this error. The fix is to allow ICMP to the gateway or configure a secondary isolation address using the advanced option das.isolationaddress.

vSAN waits for a specific time (default 60 minutes) before rebuilding absent components to avoid unnecessary data sync if the failed host/site returns briefly. The state 'Reduced Availability with no rebuild' confirms this delay is active.