The correct actions are to download and verify the BCM ISO, and to set time zone and NTP synchronization during installation. NVIDIA DGX BasePOD deployment guidance for BCM head nodes instructs administrators to download the appropriate BCM ISO and validate the downloaded file by verifying its checksum. This ensures the installation media has not been corrupted or replaced. The same guidance also expects the head node installation to be performed from valid installation media, often using virtual media through the appliance BMC. Time zone and NTP configuration are essential in cluster control-plane environments because logs, certificates, scheduler events, monitoring data, authentication, and distributed troubleshooting depend on accurate and consistent time. Configuring compute-node PXE boot before the head node OS installation is premature because the head node and BCM services usually provide the management foundation for provisioning compute nodes. Legacy BIOS boot is not the recommended approach for modern DGX and BCM deployments; NVIDIA guidance for appliance preparation shows UEFI boot mode. A reliable BCM control plane starts with validated installation media and correct time synchronization.