If anetwork appliance fails to start, standard remote access methodslike SSH won't work. Instead,Out-of-Band (OOB) managementprovides adedicated access path(e.g., aconsole portoriDRAC/iLO), allowing administrators to troubleshoot devices even when the network is down.
Breakdown of Options:
A. Crash cart– A physicalmonitor/keyboard setup,not a remote solution.
B. Jump box– Ahardened systemused for secure remote accessbut requires the device to be operational.
C. Secure Shell (SSH)– Requires the device to befully booted and network-connected.
D. Out-of-band management–✅Correct answer.Providesindependent accessfortroubleshooting failed network devices.
[Reference:, CompTIA Network+ (N10-009) Official Study Guide– Domain 4.3:Explain network device management concepts., ]
