CCNA: Cisco Certified Network Associate — Question 56

What are two characteristics of a controller-based network? (Choose two.)

Answer options

• A. It uses Telnet to report system issues.
• B. The administrator can make configuration updates from the CLI.
• C. It uses northbound and southbound APIs to communicate between architectural layers.
• D. It decentralizes the control plane, which allows each device to make its own forwarding decisions.
• E. It moves the control plane to a central point.

Correct answer: C, E

Explanation

The correct answers are C and E because a controller-based network relies on northbound and southbound APIs to facilitate communication between various layers, and it centralizes the control plane to streamline management. Options A and B are incorrect as they do not accurately describe the characteristics of a controller-based network, and option D contradicts the concept by suggesting decentralization.