CCNA: Cisco Certified Network Associate — Question 88

Which type of API allows SDN controllers to dynamically make changes to the network?

Answer options

• A. northbound API
• B. REST API
• C. SOAP API
• D. southbound API

Correct answer: D

Explanation

The correct answer is D, southbound API, because it facilitates communication between the SDN controller and the network devices, allowing for dynamic changes. Options A, B, and C refer to APIs that serve different purposes, with northbound APIs focusing on communication with applications and REST and SOAP APIs being specific types of web service APIs.