CCNA: Cisco Certified Network Associate — Question 60

Which API is used in controller-based architectures to interact with edge devices?

Answer options

• A. southbound
• B. overlay
• C. northbound
• D. underlay

Correct answer: A

Explanation

The southbound API is specifically designed for communication between controllers and network devices, making it the correct answer. The northbound API, in contrast, is used for interactions between controllers and applications. The overlay and underlay options refer to different networking concepts that do not directly pertain to the interaction with edge devices.