CCDE: Cisco Certified Design Expert (Practical) — Question 108

Which two control plane policer designs must be considered to achieve high availability? (Choose two.)

Answer options

• A. Control plane policers are really needed only on externally facing devices.
• B. Control plane policers can cause the network management systems to create false alarms.
• C. Control plane policers require that adequate protocols overhead are factored in to allow protocol convergence.
• D. Control plane policers must be processed before a forwarding decision is made.
• E. Control plane policers are enforced in hardware to protect the software path, but they are hardware platform-dependent in terms of classification ability.

Correct answer: C, E

Explanation

The correct answers, C and E, highlight the need for protocol overhead in control plane policers to ensure efficient convergence and the hardware dependency of these policers for effective classification. Options A and B are misleading as they downplay the broader necessity of policers and their impact on network management systems, while D incorrectly suggests the sequence of processing in relation to forwarding decisions.