theloop
CompaniesRoundsQuestionsSearchProgress
theloop

Interview questions from top companies, mapped to the exact round they show up in. Prep for what you will actually face.

View source

Browse

CompaniesSearchAll rounds

Rounds

Online AssessmentDSA / CodingMachine CodingLow-Level Design

Contribute

Share an interviewReport an issueStar on GitHub

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

← Juniper Networks

New Grad / Junior Frontend at Juniper Networks

FrontendNew Grad / JuniorOffer◆ Commonly asked· 2025

5-round junior frontend process. Balanced across coding, design, and collaboration.

The loop · 5 rounds

01

Round 01 · 1 question

Online Assessment

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

  • Count pairs with a given sum in an array.
    New Grad / JuniorEasy◆ Commonly asked
    #hashmap
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Find minimum in rotated sorted array.
    New Grad / JuniorMedium◆ Commonly asked
    #binary-search
    PracticeLeetCode↗GeeksforGeeks↗
  • Kth smallest element in a BST.
    New Grad / JuniorMedium◆ Commonly asked
    #tree#bst
    PracticeLeetCode↗GeeksforGeeks↗
  • Pacific Atlantic water flow.
    New Grad / JuniorMedium◆ Commonly asked
    #dfs#grid
    PracticeLeetCode↗GeeksforGeeks↗
03

Round 03 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build an accessible tabs component with keyboard nav.
    New Grad / JuniorMedium◆ Commonly asked
    #react#a11y
    PracticeGeeksforGeeks↗Search↗
  • Build an accessible accordion with single/multi open.
    New Grad / JuniorMedium◆ Commonly asked
    #react#a11y
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • What is the difference between var, let and const?
    New Grad / JuniorEasy◆ Commonly asked
    #javascript
    PracticeGeeksforGeeks↗Search↗
  • Explain `this` binding and the call/apply/bind trio.
    New Grad / JuniorMedium◆ Commonly asked
    #javascript
    PracticeGeeksforGeeks↗Search↗
  • How does React batching and the render phase work?
    New Grad / JuniorHard◆ Commonly asked
    #react
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

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

  • Tell me about a time you failed and what you learned.
    New Grad / Junior◆ Commonly asked
    #growth#star
  • Describe a conflict with your manager and the outcome.
    New Grad / Junior◆ Commonly asked
    #conflict#star

Practice each round across every company

  • Online Assessment
  • DSA / Coding
  • Machine 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.