CCDE: Cisco Certified Design Expert (Practical) — Question 131

What statement describes the application layer as defined in the software-defined networking architecture?

Answer options

• A. This layer is responsible for handling packets based on the rules provided by the controller
• B. This layer is responsible for collecting the network status such as network usage and topology
• C. This layer contains programs that communicate their desired network behavior to controllers
• D. This layer processes the instructions and requirements sent by networking components

Correct answer: C

Explanation

The correct answer, C, highlights that the application layer is where programs define their intended network behavior to be managed by controllers. Option A refers to the data plane functions, while B focuses on network monitoring, and D pertains to processing requirements, which do not specifically describe the application layer's role.