Persistent Systems Software Developer interview questions

The on-campus hiring process consists of four sections: Online Test: MCQs on DBMS (tables, normalization, tuples), Operating Systems (page table, scheduling, Belady’s Anomaly), Computer Networking (Hamming code, TCP, UDP), logical reasoning, and English. 2 coding questions. Technical Interview Round 1: Introduction and hobbies. Project details and role, especially if using Python. Favorite programming language (e.g., C++). Questions on abstract classes, foreign and primary keys, indexing, normalization, Linux commands (e.g., grep), IP address, networking (switch vs. router, subnetting), and Java final keyword. Technical Interview Round 2: DBMS questions (primary and foreign keys, indexing). Experience with Machine Learning. OOP concepts in C++. Difference between arrays and linked lists. Searching techniques (e.g., binary search). Data structures, cloud computing basics, AWS, big data, and recent technologies. HR Interview: Introduction, reasons for joining the company, and hobbies.