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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

← Deloitte

Intern Backend at Deloitte

BackendInternRejected◆ Commonly asked· 2024

A intern backend hiring drive. 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.

  • Quantitative aptitude: time and work problems.
    InternEasy◆ Commonly asked
    #aptitude
    PracticeGeeksforGeeks↗Search↗
  • Quantitative aptitude: simple and compound interest.
    InternEasy◆ Commonly asked
    #aptitude
    PracticeGeeksforGeeks↗Search↗
  • Pseudocode: spot the error in the given snippet.
    InternMedium◆ Commonly asked
    #pseudocode
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 2 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Find the sum of digits of a number.
    InternEasy◆ Commonly asked
    #math
    PracticeGeeksforGeeks↗Search↗
  • Find the largest and smallest element in an array.
    InternEasy◆ Commonly asked
    #array
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 4 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • What is indexing in a database and when does it help?
    InternMedium◆ Commonly asked
    #dbms
    PracticeGeeksforGeeks↗Search↗
  • Difference between TCP and UDP.
    InternEasy◆ Commonly asked
    #networking
    PracticeGeeksforGeeks↗Search↗
  • Difference between DELETE, TRUNCATE and DROP.
    InternEasy◆ Commonly asked
    #sql
    PracticeGeeksforGeeks↗Search↗
  • Difference between an array and a linked list.
    InternEasy◆ Commonly asked
    #data-structures
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Behavioral / HR

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

  • What do you know about our company and the services we provide?
    Intern◆ Commonly asked
  • Why do you want to join our company?
    Intern◆ Commonly asked
  • Would you be comfortable working on any technology assigned to you?
    Intern◆ 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.