FlexiLoans Technologies Backend Developer interview questions

They came to our campus for placements. The first round consisted of an Aptitude + Technical MCQ test with 20 questions to be solved in 20 minutes. This round included topics such as CS fundamentals, quantitative aptitude, logical reasoning, and verbal ability. The second round was a coding test, which included the following problems: 1. Remove duplicates from a sorted array 2. Longest common prefix 3. Valid anagram 4. Isomorphic strings The third round was a technical interview, where they primarily asked about: - The pillars of OOP - What is an Operating System (OS)? - Normalization in DBMS - Finding the second-highest salary in a dataset