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 EngineerDesign a user behavior monitoring system
System Design: User Behavior Monitoring System You are asked to design a monitoring/analytics system that collects user behavior events from clients (...
System Design
30
1
310 people solved
Dec 4, 2025
Medium
Machine Learning EngineerSenior+ LockedDebug Sparse Multi-Task Ranking Models
This question evaluates a candidate's ability to debug multi-task ranking models in production, focusing on training stability, extreme label sparsity...
Machine Learning
5
0
71 people solved
Jun 10, 2026
Medium
Software EngineerNew Grad LockedDescribe Growth, Mistakes, and Obstacles
This prompt evaluates learning velocity, ownership, collaboration, accountability, and interpersonal problem-solving by eliciting concrete internship ...
Behavioral & Leadership
2
0
26 people solved
Jun 10, 2026
Medium
Machine Learning Engineer LockedExplain activations, losses, and Adam
This question evaluates understanding of neural network building blocks (layers and activation functions), comparative properties of activation/gating...
Machine Learning
16
0
139 people solved
Feb 11, 2026
Medium
Machine Learning Engineer LockedDesign an ads ranking ML system
This question evaluates a candidate's ability to design a low-latency ads ranking machine learning system, including feature engineering and freshness...
ML System Design
11
0
89 people solved
Feb 11, 2026
Medium
Product AnalystSenior+Describe an Analysis Where You Used AI Responsibly
Prompt Describe one analysis in which you used an AI-assisted tool. Explain the business question, why AI was appropriate, exactly what the tool did, ...
Behavioral & Leadership
1
0
29 people solved
Apr 20, 2026
Medium
Software EngineerSenior+Solve Two OA Coding Problems
The online assessment included two coding problems: 1. In-place character run compression - You are given an array of characters. - Compress con...
Coding & Algorithms
17
0
110 people solved
Apr 5, 2026
Medium
Software EngineerDescribe project impact and critical feedback
Prepare for two behavioral prompts commonly asked in a software engineering onsite interview: 1. Describe a project you are proud of Explain the bu...
Behavioral & Leadership
11
0
157 people solved
Jan 5, 2026
Medium
Data ScientistSolve three algorithmic tasks in Python
You are given 120 minutes to implement three independent algorithmic tasks in Python. Each task specifies the required input/output behavior, the cons...
Coding & Algorithms
16
0
142 people solved
Jul 28, 2025
Medium
Software EngineerVertical Order Traversal of a Binary Tree
Vertical Order Traversal of a Binary Tree You are given the root of a binary tree. Return the vertical order traversal of its nodes' values — that is,...
Coding & Algorithms
2
0
16 people solved
Jun 30, 2026
Medium
Data ScientistCompare Shop and Web Ad Performance Without Overclaiming
Compare Shop and Web Ad Performance Without Overclaiming You have 28 days of daily ad data: `text ads_detail(advertiser_id, ad_id, ad_type, ad_objecti...
Analytics & Experimentation
2
0
28 people solved
May 22, 2026
Easy
Product AnalystDesign experiments and diagnose metric changes
You are a Product/Data Scientist at a food-delivery marketplace (customers, dashers/couriers, merchants). Answer the following product analytics & exp...
Analytics & Experimentation
13
0
155 people solved
Feb 22, 2026
Medium
Software EngineerNew GradDesign a Dormitory Room-Assignment System (OOD)
You are asked to design the object-oriented model for a dormitory room-assignment system. You are given a set of students and a set of rooms. Each roo...
Software Engineering Fundamentals
3
0
32 people solved
Feb 22, 2026
Hard
Software EngineerExplain Your Engineering Ownership
You are on an initial technical screening call for a Software Engineer role. Despite being an early-stage "recruiter" screen, it is unusually technica...
Behavioral & Leadership
10
0
138 people solved
Apr 4, 2026
Medium
Software EngineerInternExplain SystemVerilog verification concepts and write constraints
Answer the following SystemVerilog / DV questions. Use short explanations and, where appropriate, show small SV code snippets. 1) Concurrency: Explain...
Software Engineering Fundamentals
5
0
100 people solved
Feb 9, 2026
Hard
Machine Learning EngineerImplement bagging with decision trees
Implement a simple bagging (bootstrap aggregating) classifier that uses decision trees as base learners. You are given a template with a DecisionTree ...
Machine Learning
10
0
120 people solved
Feb 9, 2026
Medium
Machine Learning EngineerInternExplain metrics, regularization, and ablation studies
You are interviewing for an Applied Scientist role. 1) For a binary classification problem, explain the following and when you would use each: - Preci...
Machine Learning
11
0
121 people solved
Feb 9, 2026
Medium
Software Engineer LockedArchitecture and Data-Scaling Trade-offs
This question evaluates a candidate's grasp of software architecture and database scaling trade-offs, covering microservices versus monolithic design ...
Software Engineering Fundamentals
1
0
31 people solved
Jun 9, 2026
Medium
Software Engineer LockedTwo Sum — Indices Summing to a Target
This question evaluates a candidate's ability to design an efficient array-searching algorithm that maps values to indices under a target-sum constrai...
Coding & Algorithms
1
0
11 people solved
Jun 9, 2026
Medium
Software EngineerSolve quick probability questions
Rapid-Fire Probability Questions You are in a timed quantitative screen. Answer each of the following independent probability questions, ideally in we...
Statistics & Math
24
0
437 people solved
Aug 13, 2025