Explore the intricacies of NodeJS asynchronous I/O in this episode of The Backend Engineering Show. Dive into an in-depth analysis of when NodeJS I/O blocks, covering six key areas: Socket/IO, File I/O, DNS, NodeJS Single Threaded nature, NodeJS Thread Pool, and DNS lookup bottlenecks in Node. Gain valuable insights into network engineering fundamentals and understand how these concepts impact backend development. Follow along as the host breaks down complex topics, providing a comprehensive overview of NodeJS performance considerations and potential bottlenecks in various I/O operations.