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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 Full-stack at TCS

Full-stackNew Grad / JuniorOutcome unknown◆ Commonly asked· 2025

A junior fullstack hiring drive. Fundamentals over puzzles — OOP, DBMS and SQL carried the most weight.

The loop · 4 rounds

01

Round 01 · 3 questions

Online Assessment

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

  • Quantitative aptitude: permutations, combinations and probability.
    New Grad / JuniorMedium◆ Commonly asked
    #aptitude
    PracticeGeeksforGeeks↗Search↗
  • Quantitative aptitude: ratio, proportion and averages.
    New Grad / JuniorEasy◆ Commonly asked
    #aptitude
    PracticeGeeksforGeeks↗Search↗
  • Logical reasoning: blood relations and seating arrangement.
    New Grad / JuniorMedium◆ Commonly asked
    #reasoning
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 2 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Reverse a string without using library functions.
    New Grad / JuniorEasy◆ Commonly asked
    #string
    PracticeGeeksforGeeks↗Search↗
  • Find the second-largest element in an array.
    New Grad / JuniorEasy◆ Commonly asked
    #array
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 4 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain virtual memory, paging and segmentation.
    New Grad / JuniorMedium◆ Commonly asked
    #os
    PracticeGeeksforGeeks↗Search↗
  • Difference between C and C++.
    New Grad / JuniorEasy◆ Commonly asked
    #c
    PracticeGeeksforGeeks↗Search↗
  • Difference between TCP and UDP.
    New Grad / JuniorEasy◆ Commonly asked
    #networking
    PracticeGeeksforGeeks↗Search↗
  • Explain SQL joins: inner, left, right and full outer.
    New Grad / JuniorEasy◆ Commonly asked
    #sql
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Behavioral / HR

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

  • Tell me about yourself.
    New Grad / Junior◆ Commonly asked
  • What are your interests outside academics?
    New Grad / Junior◆ Commonly asked
  • Why do you want to join our company?
    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.