Programming (OOPs) concepts such as overriding and overloading. Further, I was asked about dictionaries in Python, specifically how key-value pairs work, and then moved on to exception handling. Following the theory questions, I was given a few coding problems: 1. Given a list of alphabets, count the frequency of each alphabet and return the result. 2. From a given list of numbers, filter out and return only the prime numbers. 3. Given a string, reverse the string word by word (not letter by letter) and then convert the result to uppercase. After the Python section, the interviewer asked questions from SQL. He tested my knowledge on: Joins (types and usage), Unique keys, and how to identify them in a table. Towards the end of the interview, I was asked a behavioral question. Finally, the interview concluded with a simple aptitude question.