200-901 Question 191
Single answerA network engineer is troubleshooting an issue where a router fails to forward packets to the next hop, even though the routing table is correctly configured. Upon further investigation, they discover that the router's CPU is overloaded due to misconfigured logging. Which plane of the router is most likely affected, and why?
- A
Management plane, because it handles administrative tasks such as logging and configuration management.
- B
Data plane, because it is responsible for forwarding packets to the next hop.
- C
Control plane, because it maintains the routing table and exchanges routing information.
- D
Data plane, because it processes network management protocols like SNMP.
Show answer and explanation
Correct answer: A
Explanation
The management plane is responsible for administrative functions such as logging, configuration management, and monitoring. If a misconfigured logging process causes the CPU to overload, it can prevent the device from performing its primary tasks effectively, such as forwarding packets. This issue highlights the critical role of the management plane in ensuring the proper functioning of a network device.
- A. Correct.
Correct. The management plane is responsible for administrative tasks, such as logging and configuration management. If misconfigured logging causes CPU overload, it can indirectly impact the router's operation.
- B. Incorrect.
Incorrect. The data plane is responsible for forwarding packets, but the issue described is not directly related to the packet forwarding mechanism itself; it's a result of CPU overload caused by logging.
- C. Incorrect.
Incorrect. The control plane is responsible for maintaining the routing table and managing protocol exchanges, but the issue here is tied to administrative logging, which is handled by the management plane.
- D. Incorrect.
Incorrect. The data plane does not handle network management protocols like SNMP; this is typically a function of the management plane.