This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.
In this episode you will learn:
- The key differences between a distributed control plane in traditional networks and a centralized control plane in controller-based architectures.
- How southbound APIs (e.g., NETCONF) are used for controller-to-device communication versus how northbound APIs (e.g., REST APIs) are used for controller-to-application communication.
- The distinction between the physical underlay network and the virtual overlay network (e.g., VXLAN).
- Common CCNA exam traps, such as the continued distribution of the data plane in SDN and the specific roles of Cisco DNA Center versus vManage.
- A simple mnemonic to remember the direction and purpose of northbound and southbound APIs.
For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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