Optrak Javascript Developer interview questions

I applied though LinkedIn. Interview process: 1. Coding round - Front end challenge on React context, check if binary tree 2. How would you solve failed test cases in your code done in 1st round? What can you use instead of Context API? 3. Presentation on a computing project you have undertaken or are undertaking - I did 15 min presentation after which they asked me about my project. Later they presented about their current app version and future version. Few behavioral questions and asked about my journey/experience.