Cognizant

There were 2 interviewers, one offline and one online. You had to join in companion mode. First you have to introduce yourself by explaining your projects. Then he asked me 2 dsa questions. I'm more comfortable in C++, but he said that since this is JavaFSE role, you have to code in java. Questions were very easy, but I got little syntax errors as I'm not much comfortable in java. Merge common elements from 2 arrays. create another array for answer. 2nd largest element in array. Then he asked me what are errors, exception handling, what is difference btw them, can they be resolved, if yes, how to resolve them? how many exceptions are there in java, exception hierarchy. Then he asked what is the hashing function used in java. In javascript, he asked difference btw == and ===. Then he asked something in angular, but I said that i've done react.js not angular, so he asked me what is difference btw js and react.js? Since my project was around AI/ML he asked me about my projects. He also asked what is GenAI. Some common questions asked from everyone: are you comfortable with any shift (day/night)? relocation? any tech-stack.