PubMatic shortlisted students based on CGPA criteria for online test.
26-08-2024 :
Online Assessment (90 minutes) -
Platform: HackerRank
Test includes MCQ's based on OS, DBMS, CN, DSA and two coding questions based on strings.
They shortlisted 10 students for interviews. Interview conducted at PubMatic office, Pune.
29-08-2024:
Technical Interview 1 -
Duration :- 1.5 hours
- How was the journey to pune?
- Project discussion - Asked me to explain the projects.
- Asked me to show how my app works on paper and also asked some questions about frontend and backend.
- My contribution into the project.
- DSA question- given a string and you have to find out min. no of operations to make a string balanced (Asked to explain the approach, write code and dry run on given test cases).
- SQL query - Interviewer drew the Student table which had columns like RollNo, Name, Branch, Marks. He asked me to write down the query to fetch student having maximum marks in CSE department.
- OS - Interviewer asked me about primary and secondary memory.
Let's say size of RAM is 8GB and you have a movie on hard disk of 5GB. 2GB space in RAM is free and you try to watch the movie. How OS works here. I explained him how OS handles this situation efficiently by making use of virtual memory and also drew the working on paper.
Technical Interview 2 -
Duration :- nearly about 1.5 hours
- Tell me about yourself.
- What is heap memory?
- What are the pointers? - Interviewer asked me deep questions about pointers and their working when we pass pointer as parameter to function. I explained the concept of double pointers and how we can use them to modify the pointer itself inside the function.
- Vector implementation using array - approach and code.
- Vector implementation using pointer array - approach and code.
- String problem - given a string (a sentence containing multiple words) where we have to find the given string (word) and replace it by another given string (word) - approach and code .
- Do you have any questions for me?
No HR was conducted and Results were announced on 2 sep 2024.
Final Verdict : Selected