300-420 Question 270
Single answerA network administrator is designing a management solution for a new enterprise network. The design requires secure and reliable access to network devices for configuration and troubleshooting, even in the event of a primary network failure. Which of the following approaches should the administrator prioritize?
- A
Use an in-band management approach that utilizes the same data network as production traffic.
- B
Implement an out-of-band management approach with a dedicated management network separated from production traffic.
- C
Enable SNMP over the production network for device monitoring and management.
- D
Use a hybrid approach combining in-band management with traffic prioritization for management protocols.
Show answer and explanation
Correct answer: B
Explanation
Out-of-band management is the preferred approach for scenarios requiring secure and reliable access to network devices, even during production network failures. By using a dedicated management network, administrators can ensure uninterrupted access for configuration and troubleshooting tasks, meeting the design requirements stated in the question.
- A. Incorrect.
In-band management relies on the production network for access, which means it cannot provide management capabilities during primary network failures. This does not meet the design requirement for reliability during outages.
- B. Correct.
Out-of-band management utilizes a separate, dedicated management network, which ensures access to devices even if the primary production network fails. This approach aligns with the design requirement for secure and reliable access.
- C. Incorrect.
While SNMP can provide monitoring capabilities, it typically operates over the in-band (production) network. It does not offer the reliability required during production network failures.
- D. Incorrect.
A hybrid approach may improve performance under normal conditions, but it still depends on the production network. It cannot guarantee access during primary network outages, which fails the design requirement.