CCNA: Cisco Certified Network Associate — Question 489

What is the role of disaggregation in controller-based networking?

Answer options

• A. It divides the control-plane and data-plane functions.
• B. It streamlines traffic handling by assigning individual devices to perform either Layer 2 or Layer 3 functions
• C. It summarizes the routes between the core and distribution layers of the network topology
• D. It enables a network topology to quickly adjust from a ring network to a star network

Correct answer: A

Explanation

The correct answer, A, highlights that disaggregation separates the control-plane from the data-plane, which is essential for scalability and flexibility in controller-based networking. Options B, C, and D address different aspects of networking but do not accurately describe the specific role of disaggregation.