Pergunta de entrevista da empresa Chubb

Q1. Coding - Find the first repeated character in a string. Q2. DBMS - Difference between Primary Key and Foreign Key Q3. Which do you think is Better Angular or React? Q4. Difference b/w Iaas, Paas, and Saas. Q5. A room has 7 red socks and 7 blue socks in his drawer. The room is completely dark. In this situation, how many socks must he take from the drawer in order to be sure to get a pair that match?