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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.

MIT · © 2026

← Coursera

Mid Frontend at Coursera

FrontendMidNo offer◆ Commonly asked· 2024

Mid frontend interview. Fundamentals mattered as much as getting to an answer.

The loop · 5 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Word break.
    MidMedium◆ Commonly asked
    #dp#string
    PracticeLeetCode↗GeeksforGeeks↗
  • Pacific Atlantic water flow.
    MidMedium◆ Commonly asked
    #dfs#grid
    PracticeLeetCode↗GeeksforGeeks↗
  • Diameter of a binary tree.
    MidEasy◆ Commonly asked
    #tree#dfs
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a star-rating component (controlled + accessible).
    MidEasy◆ Commonly asked
    #react#a11y
    PracticeGeeksforGeeks↗Search↗
  • Build an image carousel with autoplay and swipe.
    MidMedium◆ Commonly asked
    #react#ui
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 1 question

Low-Level Design

Object-oriented / low-level design of a focused module.

  • Design a data-fetching cache with invalidation.
    MidHard◆ Commonly asked
    #cache#oop
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain the CSS box model and box-sizing.
    MidEasy◆ Commonly asked
    #css
    PracticeGeeksforGeeks↗Search↗
  • Closures and the module pattern — with an example.
    MidEasy◆ Commonly asked
    #javascript#closures
    PracticeGeeksforGeeks↗Search↗
  • Explain `useEffect` dependencies and common pitfalls.
    MidMedium◆ Commonly asked
    #react#hooks
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

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

  • How do you get up to speed on an unfamiliar codebase?
    Mid◆ Commonly asked
    #learning
  • Tell me about a time you failed and what you learned.
    Mid◆ Commonly asked
    #growth#star

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