Interview Questions
Practice the exact questions companies are asking right now.
Questions
10.0k
Companies
520
Updated
08.21.2026
10.0k Questions 520 Companies08.21.2026
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
Hard
Data ScientistHow to Analyze and Model Behavioral Data Effectively?
Analyze and Model Behavioral Data Effectively You receive a raw event-level behavioral dataset for a product funnel. The interviewer asks you to clean...
Machine Learning
105
0
300 people solved
Jul 12, 2025
Medium
Software EngineerMerge Sorted Arrays
You are given two related tasks about sorted integer arrays. 1. Implement a function that takes two arrays sorted in nondecreasing order and returns a...
Coding & Algorithms
1
0
8 people solved
Apr 6, 2026
Hard
Software EngineerExplain Python and React performance fundamentals
In a phone screen for a full-stack software engineering role, you may be asked a group of fundamentals questions such as: - Explain what a Python cont...
Software Engineering Fundamentals
5
0
45 people solved
Apr 6, 2026
Hard
Software EngineerWhy pursue full-stack engineering?
You are interviewing for a full-stack software engineering role. Explain why you are specifically interested in full-stack work instead of focusing on...
Behavioral & Leadership
5
0
46 people solved
Apr 6, 2026
Medium
Data ScientistNew Grad LockedBuild cold-start restaurant ratings
This question evaluates a data scientist's ability to design a production-ready predictive modeling approach for cold-start ratings, testing competenc...
Machine Learning
24
0
190 people solved
Apr 6, 2026
Hard
Frontend EngineerSenior+Present a Previous Project Deep Dive
Prepare a technical deep-dive presentation about a previous project you worked on. Choose a project with enough scope and complexity to support a Staf...
Behavioral & Leadership
6
0
45 people solved
Jan 5, 2026
Medium
Machine Learning EngineerWhy Airbnb and what matters most
Answer this values-oriented behavioral prompt set: - Why do you want to work at Airbnb? - What do you think is one of the biggest problems in the worl...
Behavioral & Leadership
12
0
126 people solved
Jan 5, 2026
Medium
Data ScientistCompute seller counts and vehicle share
You are given two tables: 1. listing_interactions - buyer_id BIGINT - seller_id BIGINT - event_date DATE - product_id BIGINT - listing_...
Data Manipulation (SQL/Python)
7
0
55 people solved
Jan 5, 2026
Easy
Data ScientistExplain and compute option delta
In options trading, what is an option’s delta? 1) Give the definition of delta and explain its intuition/sign for calls vs puts. 2) Under the Black–Sc...
Software Engineering Fundamentals
5
0
46 people solved
Jan 5, 2026
Medium
Machine Learning Engineer LockedDesign a weapon-sale ad detection system
This question evaluates a candidate's competence in end-to-end machine learning system design, covering multimodal signal integration (text, images, b...
ML System Design
14
0
137 people solved
Jan 5, 2026
Hard
Software EngineerImplement resilient LLM provider pool
System Design Task: Resilient Multi‑Provider LLM Client Library Context You are designing a client library used by backend services to call external L...
ML System Design
9
0
160 people solved
Aug 13, 2025
Hard
Software EngineerDesign a personal finance aggregator
System Design: Personal Finance Aggregation Platform (Mint-like) Context Design a consumer-facing platform that aggregates a user's financial data acr...
System Design
22
0
168 people solved
Aug 13, 2025
Medium
Software Engineer LockedImplement JSON parsing and HTTP integration tasks
This question evaluates proficiency in JSON parsing, file I/O, HTTP client integration, request/response handling, payload construction, mapping data ...
Coding & Algorithms
10
0
132 people solved
Nov 26, 2025
Medium
Software EngineerHow do you decide with limited information?
Behavioral Question Describe a time you had to make an important decision with incomplete, ambiguous, or conflicting information. Include: - What deci...
Behavioral & Leadership
11
0
88 people solved
Nov 26, 2025
Easy
Data ScientistHandle feedback, change pivots, and conflict
Question In the behavioral portion of the Meta Data Scientist screen, answer the following leadership prompts using concrete examples from your own wo...
Behavioral & Leadership
3
0
73 people solved
Feb 16, 2026
Medium
Software EngineerExplain ACID and transactions
ACID Transactions: Definitions, Enforcement, Isolation Levels, and Example Context You are designing a service backed by a relational database that su...
System Design
12
0
170 people solved
Aug 12, 2025
Hard
Software EngineerDesign a real-time favorites service at scale
Design: Real-Time Favorites/Unfavorites Service at High Scale Context Design a backend service that lets users favorite/unfavorite items (e.g., posts,...
System Design
19
0
201 people solved
Aug 12, 2025
Easy
Analytics EngineerHandle diverse styles and give constructive feedback
Behavioral: Collaboration, diversity, feedback, documentation Answer the following using specific examples from your past experience. 1. Diversity & i...
Behavioral & Leadership
3
0
28 people solved
Feb 15, 2026
Medium
Software EngineerInternImplement a News Publishing System with Topic Subscriptions and Delivery Limits
You are building the core delivery engine for a news publishing service. The service continuously receives news items, stores them, and — whenever a p...
Coding & Algorithms
2
1
30 people solved
Nov 25, 2025
Hard
Software EngineerCompute Inherited Role Privileges
You are given n roles. The array initialPrivileges has length n, where initialPrivileges[i] is the list of privileges directly assigned to role i. You...
Coding & Algorithms
2
0
16 people solved
Apr 5, 2026