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."
How do you prioritize and influence?
In a behavioral interview for an AI/ML engineering role, be prepared to answer questions like the following: 1. How do you prioritize multiple project...
Compare arrays, linked lists, hash tables, trees
Answer the following computer-science fundamentals questions: 1) What are the time complexities (Big-O) of common sorting algorithms (e.g., bubble sor...
Write SQL for TikTok Live creator metrics
You are analyzing TikTok Live sessions and their engagement. Tables live_room Each row is a Live session (“room”) launched by a creator. | column | ty...
Design a Multi-Tenant Online IDE
Design a browser-based online IDE for multiple enterprise tenants. Each tenant is an organization with its own users, projects, source files, secrets,...
Implement command-driven in-memory key-value database
Implement a command-driven in-memory key–value database. Supported commands (one per line): 1) SET key value 2) GET key → print value or NULL 3) DELET...
Build and design a Mistral RAG agent
Design and Implement a Minimal LLM-Powered RAG Agent (Python, Mistral API) Context You are asked to build a minimal, but production-minded, retrieval-...
Design a large-scale distributed rate limiter
Problem Design a multi-tenant, large-scale distributed Rate Limiter service used by many internal teams. The service should allow product teams to enf...
Merge overlapping time intervals
Problem: Merge Intervals You are given an array of intervals intervals, where each interval is a pair [start, end] with start <= end. Merge all overla...
Deep-dive a project and show ownership
You will be asked to do a deep dive on one or two past projects. The interviewer(s) may probe heavily on technical details and leadership behaviors. P...
Describe a cross-functional project you’re proud of
Describe a project you are most proud of, ideally one that required cross-team (cross-organizational or cross-functional) collaboration. Your answer s...
Verify business accounts with progressive KYC rules
You are implementing a simplified KYC verification pipeline for onboarding business accounts. Each account contains these text fields: - business_name...
Answer Amazon-style leadership deep dives
Behavioral / Leadership Prompt (Principal level) Prepare to answer deep-dive leadership questions with heavy follow-ups. Scenarios to cover - A failed...
Solve String Arrays and Row Deduplication
You are given the following independent coding tasks. For each task, write clean production-quality code, handle edge cases, and state the time and sp...
Compare Unsupervised Clustering Methods
Explain several unsupervised clustering approaches and when you would use each one. At a minimum, compare centroid-based clustering, hierarchical clus...
Should We Launch Group Calling?
Question You work on a consumer calling product (think Messenger/WhatsApp-style voice) that currently supports only one-to-one voice calls. The team i...
Describe a high-impact product project
In a conversation with a Head of Product, you are asked to discuss one project in depth. Describe a product or marketplace project where you had meani...
Apply Range Overwrite Queries
You are given an integer array nums of length n and a list of range-assignment queries. Each query is a tuple (left, right, value), where left and rig...
How would you define and use retention metrics?
Scenario You are a Data Scientist supporting a consumer product (app or website). A PM asks you to “dive deep” on user retention and recommends tracki...
How to measure harmful-content severity and run experiments
Question You are a Data Scientist working on content integrity / harmful content at a large social media platform (e.g., hate/harassment, self-harm, g...
Improve LLM reasoning for a domain task
You are building an LLM-powered product for a domain-specific task that requires multi-step reasoning. The base model does reasonably well on easy exa...