Cisco
352-001 · Question #126
352-001 Question #126: Real Exam Question with Answer & Explanation
The correct answer is C: maintains routing protocol adjacencies with local neighbors. Protecting the control plane (via CoPP or similar policies) ensures the router CPU is not overwhelmed, which keeps routing adjacencies stable and management sessions available.
Question
What are two benefits of protecting the control plane of a network device? (Choose two.)
Options
- Aprevents the delivery of packets from spoof sources
- Bpreserves the confidentiality of traffic encrypted by IPsec
- Cmaintains routing protocol adjacencies with local neighbors
- Dmaintains remote management access to the router
Explanation
Protecting the control plane (via CoPP or similar policies) ensures the router CPU is not overwhelmed, which keeps routing adjacencies stable and management sessions available.
Common mistakes.
- A. Filtering spoofed source addresses is a data plane function implemented with Unicast Reverse Path Forwarding (uRPF) or ACLs, not control plane protection.
- B. IPsec encryption and confidentiality operate in the data plane (or hardware offload); control plane protection does not influence the encryption of transit traffic.
Concept tested. Control plane policing benefits on network devices
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