Interview Questions
Practice the exact questions companies are asking right now.
Questions
9.8k
Companies
511
Updated
08.16.2026
9.8k Questions 511 Companies08.16.2026
PLTCHK
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
_The_TaNk_
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
ChrisSenior SWE, LinkedIn
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
sleepy33
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
JakeSenior ML Engineer, Lyft
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
nuggetlord
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
CarlosFull Stack, Shopify
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
boba.tea.vibes
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
AndySWE-II, Google
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
couchpotato99
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
ShrutiData Engineer, Salesforce
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
midnightramen
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
BiancaFrontend Eng, Figma
"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
tambrahm007
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
toa
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Showing 20 results
Role
Medium
Software EngineerSenior+Design a News Aggregation Feed
Design a large-scale news aggregation feed similar to a major news app. The system ingests a large volume of raw news articles from many sources, incl...
System Design
7
0
133 people solved
Jan 17, 2026
Easy
Data Scientist LockedHow validate a driving simulation is realistic?
This question evaluates skills in statistical validation of simulations, distributional comparison between real and simulated driving data, scenario-s...
Analytics & Experimentation
28
0
271 people solved
Jan 17, 2026
Medium
Software EngineerDesign Emergency Notification System
Design a disaster or emergency notification system for an organization such as a city government, university, or large company. The system should allo...
System Design
7
1
63 people solved
Apr 6, 2026
Easy
Data EngineerInternAnswer Amazon Behavioral Questions
Question You are in the behavioral portion of an Amazon final-round interview (Software Development Engineer internship). Prepare strong, structured r...
Behavioral & Leadership
22
0
280 people solved
Feb 23, 2026
Hard
Data ScientistNew GradCompute the Probability for Two Uniform Variables
Let \(X\) and \(Y\) be independent random variables, each uniformly distributed on \([0,1]\). Define: - \(L = \max(X,Y)\) - \(S = \min(X,Y)\) What is ...
Software Engineering Fundamentals
8
0
83 people solved
Mar 5, 2026
Hard
Data ScientistHow would you evaluate stolen-post detection?
You are interviewing for a Meta DSA (product analytics / data science) role. The product team is launching a new Stolen Post Detection algorithm that ...
Analytics & Experimentation
111
2
1044 people solved
Mar 5, 2026
Hard
Software Engineer LockedDesign a Cache with Hit Counts
This question evaluates a candidate's competence in system design, data structures, concurrency, and observability by requiring a key-value cache that...
Software Engineering Fundamentals
41
0
359 people solved
Mar 15, 2026
Medium
Software Engineer LockedDesign an n x n Tic-Tac-Toe Game
This question evaluates a candidate's ability to design a class-based data structure that tracks game state and efficiently detects a win condition af...
Coding & Algorithms
4
0
31 people solved
Jun 23, 2026
Medium
Software Engineer LockedLongest Run of Ones After One Flip
This question tests a candidate's ability to solve a sliding window problem involving binary arrays, extending the basic "maximum consecutive ones" pa...
Coding & Algorithms
2
0
12 people solved
Jun 23, 2026
Medium
Software Engineer LockedModerator System with Ranking, Communities, and Demotion
This question tests practical data structure design and object-oriented system modeling, requiring the implementation of a hierarchical moderator mana...
Coding & Algorithms
1
0
23 people solved
Jun 23, 2026
Medium
Data ScientistEstimate Revenues and Costs for New Amusement Park Launch
Estimate Revenues and Costs for New Amusement Park Launch Amusement Park Case: Revenue, Costs, Profit, and Go/No-Go Context You are advising an amusem...
Analytics & Experimentation
37
0
422 people solved
Aug 4, 2025
Hard
Software Engineer LockedPrepare Leadership Principle Stories
This question evaluates leadership, ownership, decision-making, communication, and problem-solving competencies through concrete first-person project ...
Behavioral & Leadership
16
0
303 people solved
May 11, 2026
Hard
Data ScientistShould We Launch Group Calling?
Question You work on a consumer calling product (think Messenger/WhatsApp-style voice) that currently supports only one-to-one voice calls. The team i...
Analytics & Experimentation
7
0
53 people solved
Mar 4, 2026
Medium
Software EngineerAnswer common behavioral questions using STAR
A hiring manager interview focuses on resume/project deep-dives and standard behavioral questions. Prepare structured responses for prompts like: - Te...
Behavioral & Leadership
3
0
56 people solved
Feb 12, 2026
Hard
Software Engineer LockedDesign a multi-threaded synchronous log writer
This question evaluates a candidate's understanding of concurrent programming, durable I/O, synchronization primitives, ordering guarantees, and syste...
Software Engineering Fundamentals
29
0
543 people solved
Feb 12, 2026
Hard
Software EngineerMaximum Path Sum in an Indexed Binary Tree
Maximum Path Sum in an Indexed Binary Tree A nonempty binary tree is represented without custom node objects. values[i] is the value of node i. childr...
Coding & Algorithms
0
0
10 people solved
Jul 10, 2026
Hard
Software EngineerProduct of Array Except Self Without Division
Product of Array Except Self Without Division Given an integer array, return an array in which output[i] is the product of every input element except ...
Coding & Algorithms
0
0
13 people solved
Jul 10, 2026
Easy
Software EngineerHow would you use generative AI at work?
What are your thoughts on using generative AI tools at work? Describe: - Where you would use them to improve productivity/quality - Where you would av...
Behavioral & Leadership
4
0
83 people solved
Oct 15, 2025
Medium
Software Engineer LockedImplement Review Content Moderation
This question evaluates a candidate's ability to implement consistent server-side content moderation and stateful persistence handling in a backend se...
Software Engineering Fundamentals
11
0
125 people solved
May 24, 2026
Medium
Software EngineerDesign a Multi-Provider Financial Dashboard
Design a financial dashboard that shows account balances, stock holdings, cryptocurrency holdings, and derived portfolio metrics. Data arrives from mu...
System Design
1
0
24 people solved
Feb 2, 2026