SK0-004 · Question #710
A physical server at a remote location has failed POST. A reboot of the server is required to fix the issue, but the systems administrator is unable to access the operating system. Which of the…
The correct answer is D. iLO. iLO (Integrated Lights-Out) is the correct tool for rebooting a server that has failed POST because it operates at the hardware level independently of the OS and is accessible even when the system cannot boot.
Question
A physical server at a remote location has failed POST. A reboot of the server is required to fix the issue, but the systems administrator is unable to access the operating system. Which of the following tools should the administrator use to reboot the server?
Options
- ASSH
- BRDP
- CVNC
- DiLO
How the community answered
(23 responses)- B4% (1)
- C4% (1)
- D91% (21)
Why each option
iLO (Integrated Lights-Out) is the correct tool for rebooting a server that has failed POST because it operates at the hardware level independently of the OS and is accessible even when the system cannot boot.
SSH requires the server's operating system and network stack to be fully loaded and running - a server that has failed POST has never reached the OS, so SSH is completely inaccessible.
RDP (Remote Desktop Protocol) is a Windows OS-level graphical remote access tool that cannot function until the OS has fully booted, making it useless for a server stuck in a POST failure.
VNC is a graphical desktop sharing protocol that operates at the OS or desktop environment level and similarly requires a running operating system before it can accept connections.
iLO is an out-of-band baseboard management controller (BMC) embedded in HPE servers that has its own dedicated processor, memory, and network port. It is fully functional regardless of the host server's power or boot state, allowing an administrator to perform a hard reboot, view the remote console during POST, and diagnose hardware failures - all from a remote location without physical access.
Concept tested: Out-of-band BMC management for pre-OS server recovery
Source: https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00018313en_us
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