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."
Answer common recruiter behavioral questions
In an initial recruiter phone screen, you are asked several standard questions. Prepare structured, interview-ready responses for: 1) Why are you look...
Build an OAuth-based data migration client
Prompt Build a small command-line program that migrates records from a legacy HTTP API to a new HTTP API. Required steps 1. Obtain an access token usi...
Evaluate a new ranking model
A food-delivery company serves homepage store recommendations with ranking model V1.1. A new model V2.0 adds several new features and may require a di...
Implement Table Aggregation
You are given a table represented as a list of rows. Each row contains: - key: a string identifying a group - value: an integer Write a function that ...
Design a scalable web crawler
Design a Scalable Web Crawler Design a production-ready web crawler that discovers and downloads publicly accessible web pages at internet scale. The ...
Demonstrate effective AI-assisted coding workflow
In an interview where you are allowed to use an AI coding assistant, you are given a large scoped task (e.g., implementing a TCP chat server). The int...
Compare two rare-event detection models statistically
You are evaluating two models (Model A and Model B) for rare-event detection (e.g., fraud, abuse, medical adverse event). Positives are extremely rare...
Explain Out-of-Bounds Bugs and Infinite Loops
You are given a C or C++ code snippet that behaves incorrectly. The root cause is an out-of-bounds memory access, such as reading or writing past the ...
Handle cache-update conflicts in distributed services
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Implement and analyze custom attention
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Design a Cloud File Storage Service
Design a cloud file storage service similar to Google Drive. The system should allow users to upload, download, organize, share, and manage files and ...
How would you present a project deep dive?
You are asked to do a project deep dive (often with a short slide deck). Present one project you worked on and be prepared for detailed follow-ups. Co...
Design a restaurant recommendation system
Question Design a restaurant recommendation system for a food delivery marketplace such as Uber Eats. When a user opens the home page, the system shou...
Design a robot movement command system
Robot Movement (Pair Programming) You are given an empty starter repository (only a README). Implement a small, testable robot movement module that ca...
Handle value conflicts and disagreeing with leadership
Behavioral / Values prompts Answer the following with specific examples (use the STAR method): 1. Have you ever made a decision that was “politically ...
Calculate Order Request Metrics
You are working with DoorDash order and delivery-request data. Write SQL to answer the questions below. Tables: 1. orders - order_id BIGINT, primary k...
Handle Cross-Team Dependencies and Scope Conflicts
Answer the following behavioral interview questions using a concrete example from your experience: 1. You depend on another team to complete work, but...
Most Frequent Call Stack from Profiler Samples
A sampling profiler periodically takes a snapshot of a running program's call stack. Each snapshot is the chain of active function calls at that insta...
Review a Web Application Architecture
You are given a high-level architecture diagram for a web application: Client/Web App -> DNS -> Load Balancer -> Application Service -> Database The a...
Implement simplified Excel with SET/GET/SUM
Implement a simplified in-memory spreadsheet that supports three operations: SET, GET, and SUM, similar to basic Excel functionality. Assumptions and ...