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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

← TCS

New Grad / Junior Backend at TCS

BackendNew Grad / JuniorOffer◆ Commonly asked· 2024

4-round junior backend process. Breadth of fundamentals mattered more than algorithmic depth.

The loop · 4 rounds

01

Round 01 · 3 questions

Online Assessment

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

  • Verbal ability: synonyms, antonyms and para-jumbles.
    New Grad / JuniorEasy◆ Commonly asked
    #verbal
    PracticeGeeksforGeeks↗Search↗
  • Logical reasoning: number and letter series completion.
    New Grad / JuniorEasy◆ Commonly asked
    #reasoning
    PracticeGeeksforGeeks↗Search↗
  • Quantitative aptitude: profit, loss and percentages.
    New Grad / JuniorEasy◆ Commonly asked
    #aptitude
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 2 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Swap two numbers without using a temporary variable.
    New Grad / JuniorEasy◆ Commonly asked
    #math
    PracticeGeeksforGeeks↗Search↗
  • Implement binary search on a sorted array.
    New Grad / JuniorEasy◆ Commonly asked
    #searching
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 4 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain CPU scheduling algorithms: FCFS, SJF and round robin.
    New Grad / JuniorMedium◆ Commonly asked
    #os
    PracticeGeeksforGeeks↗Search↗
  • Difference between an array and a linked list.
    New Grad / JuniorEasy◆ Commonly asked
    #data-structures
    PracticeGeeksforGeeks↗Search↗
  • What is indexing in a database and when does it help?
    New Grad / JuniorMedium◆ Commonly asked
    #dbms
    PracticeGeeksforGeeks↗Search↗
  • Explain your final-year project architecture and your role in it.
    New Grad / JuniorEasy◆ Commonly asked
    #project
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Behavioral / HR

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

  • What are your strengths and weaknesses?
    New Grad / Junior◆ Commonly asked
  • Why did you choose this branch of engineering?
    New Grad / Junior◆ Commonly asked
  • Tell me about your final-year project.
    New Grad / Junior◆ Commonly asked

Practice each round across every company

  • Online Assessment
  • DSA / Coding
  • Tech Deep-Dive
  • 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.