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Difficulty: MediumRemote Access and Out-of-Band Management

A system administrator needs to implement remote management for a cluster of physical servers located in a remote datacenter. During host operating system crashes or pre-boot system checks, standard network management protocols like SSH or RDP are unavailable because the OS network stack is inactive. Which of the following out-of-band management solutions provides administrators with remote graphical display output, keyboard/mouse interaction, and full access to motherboard BIOS settings?

  1. An IP-KVM switch connected directly to the display output and USB ports of the physical serversAnswer
  2. B
    An in-band SSH connection configured on port 23 across a dedicated management VLAN
  3. C
    A serial terminal server communicating over UDP sessions connected to host network adapters
  4. D
    SNMPv1 polling agents installed on the host operating system's primary network interfaces

Answer

An IP-KVM switch connected directly to the display output and USB ports of the physical servers
An IP-KVM device provides true out-of-band management by capturing hardware display signals and translating remote keyboard/mouse inputs over an IP connection. Because it operates independently of the host operating system, administrators can access BIOS setup, perform cold reboots, and diagnose kernel crashes remotely.

Step-by-Step Solution

1
Identify the key remote management requirements in the scenario.
The scenario requires out-of-band access that works during OS panics/pre-boot states and provides graphical video output alongside keyboard/mouse input.
Software-based in-band tools (like RDP or SSH) depend on the host operating system's kernel and network stack, which are non-functional when the OS freezes or has not booted.
2
Evaluate candidate remote access hardware solutions.
An IP-KVM device connects to physical video outputs (HDMI/VGA/DisplayPort) and USB controller ports, encoding video frames into network packets.
Because it interfaces at the hardware layer outside the host operating system, it grants remote BIOS and pre-boot console access.

Key Concept

Out-of-Band Remote Access via IP-KVM
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Topics

Remote Access and Out-of-Band Management

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