Learn about data serialization languages JSON, XML, and YAML in this comprehensive video from the free CCNA 200-301 course. Explore the concepts of data serialization, delve into the structure and syntax of JSON, XML, and YAML formats, and test your knowledge with multiple quizzes throughout the lesson. Gain valuable insights into these essential data exchange formats used in network programming and automation, preparing you for the CCNA certification exam and real-world networking scenarios.