In the first round, I faced 40 multiple-choice questions, including aptitude, logic, and technical topics. The questions assessed my problem-solving abilities. The second round, a 1.5-hour technical interview, started with a request to introduce myself, followed by questions about my projects and internship experience. The interview covered object-oriented programming (OOP) principles, such as encapsulation, abstraction, inheritance, and polymorphism. Questions on data structures and algorithms (trees, linked lists, stacks) were also posed, as well as coding questions related to strings. The third round, lasting 45 minutes, involved two interviewers and delved into database choices, SQL vs. NoSQL, and data structure usage scenarios. A case study prompted me to suggest a data structure for maintaining a sorted list. The fourth round, lasting 1.75 hours, included questions about OOP, operating systems (deadlock, scheduling), theoretical DSA questions, coding challenges for linked lists, and puzzles. The final HR round involved discussing personal aspects not on my resume, fitting into the company culture, reasons for choosing the company, and thoughts on the office.
