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
Data Scientist LockedSolve Probability and Statistics Questions
This question evaluates proficiency in statistical modeling (ordinary least squares linear regression), probability theory (law of large numbers and c...
Machine Learning
6
0
81 people solved
May 3, 2026
Hard
Software EngineerDesign a trending-articles platform
Design a Near Real-Time Trending-Articles Platform Design the backend that surfaces trending articles in near real time for a large-scale consumer pro...
System Design
30
0
365 people solved
Sep 6, 2025
Hard
Software EngineerDesign task scheduler with dependencies
Design a Distributed Task Scheduling Infrastructure Context Design a distributed task scheduling and orchestration system that can run at scale, suppo...
System Design
25
0
271 people solved
Sep 6, 2025
Medium
Software EngineerDemonstrate culture fit with examples
Behavioral & Leadership Interview (Software Engineer Onsite) You are preparing for an onsite behavioral and leadership interview for a Software Engine...
Behavioral & Leadership
14
0
126 people solved
Sep 6, 2025
Hard
Software EngineerDesign an intersection traffic-light system
System Design: Traffic-Light Control for a Multi-Road Intersection Context Design the software and systems for controlling a signalized, multi-approac...
System Design
22
0
337 people solved
Sep 6, 2025
Medium
Software Engineer LockedReturn Top Department Suggestions
This question evaluates proficiency in prefix-based search and top-k ranking, familiarity with in-memory data structures and preprocessing strategies,...
Coding & Algorithms
2
0
20 people solved
May 17, 2026
Medium
Software EngineerDetect robot state after movements
Detect robot state after movements Implement an algorithm to determine whether a robot following a given set of movement instructions ends in a valid ...
Coding & Algorithms
12
0
195 people solved
Aug 4, 2025
Medium
Software EngineerDesign an inventory management system
Design an inventory management system for an e-commerce business. The system must support: - Updating stock when inventory is received, adjusted, or s...
System Design
14
0
215 people solved
Jan 28, 2026
Medium
Software EngineerDetect Fraud by Propagating Suspicious PII
Detect Fraud by Propagating Suspicious PII Process a stream of underwriting and fraud_flag events in order. Maintain a set of suspicious PII values dr...
Coding & Algorithms
2
2
20 people solved
Apr 19, 2026
Medium
Software EngineerHow Would You Prevent Hallucinations in an LLM-Based System?
You are interviewing for an AI-focused Software Engineer role at a company building products on top of large language models. During the screen, the i...
Machine Learning
3
0
62 people solved
Nov 21, 2025
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
Medium
Machine Learning EngineerNavigate Conflict, Compromise, and a Revealed Weakness
Navigate Conflict, Compromise, and a Revealed Weakness Prepare a coherent behavioral answer set about how you work with other engineers and with your ...
Behavioral & Leadership
0
0
10 people solved
Jul 6, 2026
Medium
Data ScientistCalculate Daily Survey Response Rates by Country
The interview report preserved the survey tables and the request to calculate response rate, but not the exact grouping or output contract. The follow...
Data Manipulation (SQL/Python)
30
4
354 people solved
Jul 6, 2026
Medium
Software EngineerFind A Threshold-Limited Path With Minimum Required Safety
You are given an undirected graph with n nodes, a list of weighted edges, a start node, an end node, and a safety threshold. Each edge has a safety co...
Coding & Algorithms
9
1
44 people solved
Jul 6, 2026
Medium
Data ScientistHow to test bike delivery?
You are a data scientist at a food-delivery marketplace. The company is considering launching a bicycle courier delivery option in selected cities. De...
Analytics & Experimentation
48
1
359 people solved
Mar 1, 2026
Medium
Software Engineer LockedChoose DynamoDB vs MySQL for a backend
This question evaluates a candidate's ability to reason about data modeling, access patterns, query complexity, consistency and transactional requirem...
Software Engineering Fundamentals
15
0
117 people solved
Mar 1, 2026
Medium
Software EngineerExplain scope and impact under pressure
Behavioral prompt (pressure-style) An interviewer repeatedly interrupts and challenges you to be precise. 1. Tell me about a project you led. 2. For e...
Behavioral & Leadership
29
0
226 people solved
Mar 1, 2026
Medium
Software EngineerExplain VPCs and private/public network connectivity
What is a VPC (Virtual Private Cloud)? Explain the difference between a private network and a public network/subnet. How do private subnets connect to...
System Design
17
0
122 people solved
Jan 17, 2026
Medium
Backend EngineerSenior+ AIClarify and Implement Search Filters for a Library Table
Clarify and Implement Search Filters for a Library Table An existing library-management application shows a book table that users find too long and di...
Software Engineering Fundamentals
3
0
30 people solved
May 2, 2026
Medium
Software EngineerSenior+Introduce yourself for a senior role
Prompt You’re interviewing for a senior engineering role. 1. Give a concise self-introduction (2–3 minutes). 2. Highlight 1–2 impactful projects, your...
Behavioral & Leadership
24
0
175 people solved
Jan 6, 2026