CCNA: Cisco Certified Network Associate — Question 678

What is the advantage of separating the control plane from the data plane within an SDN network?

Answer options

• A. limits data queries to the control plane
• B. reduces cost
• C. decreases overall network complexity
• D. offloads the creation of virtual machines to the data plane

Correct answer: C

Explanation

Separating the control plane from the data plane in an SDN network simplifies management and enhances scalability, thus decreasing overall network complexity. The other options do not accurately represent the benefits of this separation; for example, option A incorrectly suggests that data queries are limited to the control plane, while options B and D do not directly relate to complexity reduction.