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Infosys Interview Experience for Power Programmer

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  • Difficulty Level : Basic
  • Last Updated : 11 Oct, 2021
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Round 1: Online Test

It was a pure coding round with 3 questions:

  • Related to finding maximum XOR subset
  • Sliding Window Algorithm problem
  • I don’t remember the third one. Other students also got questions on concepts like DP, bitwise operators, trees, greedy algorithms, etc.

I solved the 2 questions mentioned above completely and got shortlisted for the power programmer interview.

Round 2: Technical Interview

  • Tell me something about yourself.
  • Coding question related to “number of islands” problem. The interviewer gave me 10-15 mins for writing the code but telling just the approach of solving the question was also sufficient.
  • Why do we need normalization in DBMS? What are its advantages and disadvantages?
  • What is virtual memory?
  • Explain block size and paging in the operating system.
  • Difference between TCP/IP model and OSI model in computer networks.
  • Difference between TCP and UDP protocol and also which is the better one.
  • Explain method overloading and method overriding in detail with examples.
  • Since I mentioned that I code in Python so he asked the difference between list and tuple in Python along with their time complexities.
  • Brief discussion of projects and internships that I mentioned.

The interview was of 1 hour 15 mins. No HR round was conducted.

My Personal Notes arrow_drop_up
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