200-301 Question #734: Real Exam Question with Answer & Explanation

Question

In which two situations should you use out-of-band management?

Options

• Awhen a network device fails to forward packets
• Bwhen you require ROMMON access
• Cwhen management applications need concurrent access to the device
• Dwhen you require administrator access from multiple locations
• Ewhen the control plane fails to respond

Explanation

Out-of-band management is utilized for device access and troubleshooting when network connectivity is lost or for low-level recovery operations like ROMMON access.

Common mistakes.

• C. Management applications needing concurrent access to a device is typically a function of in-band management, allowing multiple users to connect over the operational network.
• D. Requiring administrator access from multiple locations is a common use case for in-band management via network protocols like SSH or Telnet, not a specific reason for out-of-band management.
• E. While a control plane failure often necessitates out-of-band management due to network disruption, the statement is a more specific internal diagnostic condition; however, in situations like this, the lack of packet forwarding (A) is the observable symptom that directly blocks in-band access, making A a more direct trigger for OOB.

Concept tested. Out-of-band management scenarios

Reference. https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/10046-oob.html

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