Interview Questions
Practice the exact questions companies are asking right now.
"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"
"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"
"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."
"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."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"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."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"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."
"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."
"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."
"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."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"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."
Implement Price-Time Order Matching
Implement a simplified limit-order matching engine for a stock exchange. You receive a stream of orders. Each order has: - order_id: unique identifier...
Design a chatbot over structured and unstructured data
Design a chatbot that can answer user questions using both: - Structured data (e.g., relational tables such as orders, products, pricing, user account...
Design Uber Eats-style search function
Design the search function for a large-scale food delivery platform similar to Uber Eats. A user opens the app and types a query into a single search ...
Design a URL shortener
Design a URL shortening service similar to Bitly. The service should accept a long URL and return a short alias, and visiting the short URL should red...
Handle two teams duplicating work
If you discover that two different teams are independently working on the same project or solving the same problem, how would you handle the situation...
Handle traffic spikes and estimate server capacity
Scenario You are designing and operating a backend service that receives API requests from clients. Recently, the service becomes slow or times out wh...
Generate Data Labeling Schedules
A data labeling platform manages tasks, AI models, and human annotators. Each entity has a 1-indexed string ID. You are given four integers: totalTask...
Analyze Pirated Theme Usage Impact
An e-commerce platform lets shops install marketplace themes. Some themes are paid, and a shop should have a valid purchase/license before using a pai...
Design payment fraud detection
Design a machine learning system for fraud detection in an online payment platform. The system should score transactions before or shortly after autho...
Design an E-Commerce Shopping Website
Design an E-Commerce Shopping Website Design the backend system for an online shopping website (similar to a general-purpose retail store such as Amaz...
Check Meeting Attendance With Breaks
You are given a list of appointment intervals for a single day and a mandatory break time between any two consecutive appointments. Each interval is r...
Explain Option Greeks and Futures Pricing
You are interviewing for a quantitative trading or data-focused role. Answer the following market fundamentals questions clearly and quantitatively. 1...
Solve Probability and Statistics Questions
This is a quantitative interview covering probability, statistics, and modeling fundamentals. Answer each part below. Parts are independent and may be...
Explain your perspective on AI safety
You are working in a company that builds and deploys advanced AI systems (e.g., large language models, recommendation systems, vision models) that are...
Design a multithreaded event logger
Design a multithreaded in-memory event logger for a server application. Requirements: - Many worker threads running in the process need to log events ...
Design a Train Ticket Booking System
Machine-coding exercise, 90 minutes. Design and implement a train ticket booking system. The implementation should be close to working code and should...
Explain Collaboration, Ambiguity, and Prioritization
Answer the following behavioral interview prompts using concrete examples from past projects: 1. Describe a time you collaborated with other people on...
How do you handle an LLM agents interview?
You have an interview on your agenda titled “Agents Interview.” Explain how you would approach this interview if it is about designing and evaluating ...
Design a compliant multi-tenant analytics platform
Prompt Design a multi-tenant data analysis platform for government and enterprise customers. The interviewer emphasizes that the key challenge is not ...
Evaluate IP Access Rules
You are given a list of IPv4 access-control rules. Each rule consists of: - an action: allow or deny - a CIDR block such as 192.168.0.0/16 You are als...