During a planned OS re-installation, a systems administrator wants to make sure remote console access to a rack-mounted server is still possible even when no operating system is present and the data-plane network interfaces are misconfigured. The server's dedicated management port is already patched into a separate management VLAN. Which built-in feature should the administrator enable to satisfy these requirements?
Enable IPMI Serial-over-LAN on the server's baseboard management controller
Install a VNC service inside the hypervisor for remote keyboard and video
Enable Remote Desktop Protocol once Windows Server Core is installed
Configure an SSH daemon on the host OS and connect through a terminal emulator
A server's baseboard management controller (BMC) can present an out-of-band console that is completely independent of the host CPUs, disks, and production NICs. Enabling IPMI Serial-over-LAN (or the vendor's KVM-over-IP/iLO/iDRAC implementation) lets an administrator watch POST messages, enter the BIOS/UEFI setup, mount virtual media, and power-cycle the system-even when no OS or hypervisor is installed. SSH, RDP, and VNC services all rely on an in-band network stack that becomes available only after an operating system or hypervisor has booted, so they cannot guarantee access during bare-metal provisioning or after a network-layer failure.
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What is the role of a Baseboard Management Controller (BMC)?
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What is IPMI Serial-over-LAN and how does it work?
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How does out-of-band management differ from in-band management?