Infosys Frontend Developer interview questions

i gave interview for 2+ year. 1st round=technical round. 2nd round=Hr round or manager round it depends then they decide your salary in hr round. they take 30-45 min of interview. nterview Q1. 1.what is strict Mode in react. 2.Virtual Dom. 3,react and html difference Q2. what is redux Q3. what is jquery? 2.explain architecture of your project. Q4. form validation in react