MedTrix Healthcare Interview Question

1- What is Web API? 2- What is Rest API? 3- What is MVC? 4- What is Routing? 5- How to append HTML using jQuery? 6- What are HTTP verbs? 7- What are the Triggers? 8- What is the difference between Union and Union All? 9- Few scenarios-based questions. I was asked a few more questions which I did not understand, and when I asked to explain the question, the interviewer skipped and moved to the next question.