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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

← Sonata Software

Mid Backend at Sonata Software

BackendMidRejected◆ Commonly asked· 2024

Campus-style mid backend interview. Breadth of fundamentals mattered more than algorithmic depth.

The loop · 5 rounds

01

Round 01 · 3 questions

Online Assessment

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

  • Logical reasoning: blood relations and seating arrangement.
    MidMedium◆ Commonly asked
    #reasoning
    PracticeGeeksforGeeks↗Search↗
  • Logical reasoning: data interpretation from charts and tables.
    MidMedium◆ Commonly asked
    #reasoning
    PracticeGeeksforGeeks↗Search↗
  • Quantitative aptitude: simple and compound interest.
    MidEasy◆ Commonly asked
    #aptitude
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 2 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Print the Fibonacci series up to n terms.
    MidEasy◆ Commonly asked
    #math
    PracticeGeeksforGeeks↗Search↗
  • Check whether two strings are anagrams.
    MidEasy◆ Commonly asked
    #string
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 4 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • What are the JDK, JRE and JVM?
    MidEasy◆ Commonly asked
    #java
    PracticeGeeksforGeeks↗Search↗
  • What is indexing in a database and when does it help?
    MidMedium◆ Commonly asked
    #dbms
    PracticeGeeksforGeeks↗Search↗
  • What is a pointer? Explain pointer arithmetic in C.
    MidMedium◆ Commonly asked
    #c
    PracticeGeeksforGeeks↗Search↗
  • Explain CPU scheduling algorithms: FCFS, SJF and round robin.
    MidMedium◆ Commonly asked
    #os
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 2 questions

Hiring Manager

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

  • What would you do if you disagreed with your project lead?
    Mid◆ Commonly asked
  • How do you handle a client changing requirements mid-sprint?
    Mid◆ Commonly asked
05

Round 05 · 3 questions

Behavioral / HR

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

  • Why do you want to join our company?
    Mid◆ Commonly asked
  • Where do you see yourself in five years?
    Mid◆ Commonly asked
  • Tell me about a conflict in a team project and how you resolved it.
    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.