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Interview questions from top companies, mapped to the exact round they show up in. Prep for what you will actually face.

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Online AssessmentDSA / CodingMachine CodingLow-Level Design

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The Loop aggregates publicly shared interview experiences and curated commonly-asked questions, each labeled with its source. Not affiliated with any company listed.

CC BY-NC 4.0 · © 2026

← WNS

Mid Frontend at WNS

FrontendMidRejected◆ Commonly asked· 2023

Campus-style mid frontend interview. Fundamentals over puzzles — OOP, DBMS and SQL carried the most weight.

The loop · 5 rounds

01

Round 01 · 3 questions

Online Assessment

Timed online coding / aptitude screen, usually the first filter.

  • Verbal ability: reading comprehension passage.
    MidEasy◆ Commonly asked
    #verbal
    PracticeGeeksforGeeks↗Search↗
  • Pseudocode: spot the error in the given snippet.
    MidMedium◆ Commonly asked
    #pseudocode
    PracticeGeeksforGeeks↗Search↗
  • Email writing / essay writing task.
    MidEasy◆ Commonly asked
    #verbal
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 2 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Matrix operations: transpose and sum of the diagonals.
    MidMedium◆ Commonly asked
    #matrix
    PracticeGeeksforGeeks↗Search↗
  • Count the frequency of each character in a string.
    MidEasy◆ Commonly asked
    #string
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 4 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • What happens when you type a URL into a browser?
    MidMedium◆ Commonly asked
    #networking
    PracticeGeeksforGeeks↗Search↗
  • Difference between TCP and UDP.
    MidEasy◆ Commonly asked
    #networking
    PracticeGeeksforGeeks↗Search↗
  • What is a pointer? Explain pointer arithmetic in C.
    MidMedium◆ Commonly asked
    #c
    PracticeGeeksforGeeks↗Search↗
  • Explain SQL joins: inner, left, right and full outer.
    MidEasy◆ Commonly asked
    #sql
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 2 questions

Hiring Manager

Scope, ownership, and role-fit discussion with the manager.

  • How do you approach learning a technology you have never used?
    Mid◆ Commonly asked
  • How would you approach understanding a client's legacy codebase?
    Mid◆ Commonly asked
05

Round 05 · 3 questions

Behavioral / HR

Values, collaboration, and past-experience (STAR) questions.

  • What are your strengths and weaknesses?
    Mid◆ Commonly asked
  • Would you be comfortable working on any technology assigned to you?
    Mid◆ Commonly asked
  • What are your interests outside academics?
    Mid◆ Commonly asked

Practice each round across every company

  • Online Assessment
  • DSA / Coding
  • Tech Deep-Dive
  • Hiring Manager
  • Behavioral / HR

◆ This experience is composed from commonly reported questions for this role and level. Real, individually-shared interviews will be layered in over time.