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."
Explain BIOS and UEFI Firmware Mechanisms
Explain BIOS and UEFI Firmware Mechanisms Answer the following firmware and low-level systems questions. State assumptions about architecture and firm...
Build a Wordle-Style Game in React
Build a Wordle-Style Game in React Build a small Wordle-style game from scratch in React. The secret is a five-letter word, and the player has at most...
Design a prompt playground
Design a prompt playground for developers and prompt engineers. The product lets users write prompts, choose model settings, run prompts against AI mo...
Design a Durable DAG Workflow for Order Refunds
Design a Durable DAG Workflow for Order Refunds An order that times out may need a refund. You are given a directed acyclic graph of refund steps and ...
Design a Cash Register with Inventory and Profit Tracking
Design a Cash Register with Inventory and Profit Tracking Design an object-oriented cash-register system that manages inventory, completes sales, and ...
Resolve Dependent Addition Equations
Resolve Dependent Addition Equations Problem Implement resolveEquations(equations) -> output. Each input string defines one variable as a sum of nonne...
Stand by a Disputed Technical Judgment
Stand by a Disputed Technical Judgment Prompt Describe a situation in which others believed your technical judgment was wrong, but you continued to ad...
Debug Python LRU Cache-Key Construction
Debug Python LRU Cache-Key Construction The source reports a Python LRU-cache bug in key construction from args and **kwargs but does not provide the ...
Design a Payment-Count Dashboard That Scales with Readers and Updates
Design a Payment-Count Dashboard That Scales with Readers and Updates Design a service that displays the total number of payments made on an administr...
Build a Resilient Chain of Clue-Driven HTTP Requests
Build a Resilient Chain of Clue-Driven HTTP Requests Implement or design a client that starts from one URL and follows a chain of HTTP responses. A su...
Count Completed Jobs in a Serial Multi-Worker Pipeline
Count Completed Jobs in a Serial Multi-Worker Pipeline An automation pipeline contains stages that execute in order. Each stage is represented as [num...
Evaluate an Agentic Decision System End to End
Evaluate an Agentic Decision System End to End You are replacing a rule-based workflow with an agent that selects tools and recommends operational dec...
Explain What You Seek and an Unexpected Project Outcome
Explain What You Seek and an Unexpected Project Outcome Answer two engineering-manager questions: what you are looking for in your next role, and a pr...
Design a Centralized Logging System
Design a Centralized Logging System Design a system that collects application logs from a large fleet of microservice instances and makes them durable...
Prepare for a Recruiter Motivation Screen
Prepare concise, credible answers for an initial recruiter conversation for a senior engineering role. Part 1: Why This Organization Explain why you w...
Handle Conflict, Expanded Scope, Risk, and Team Culture
Handle Conflict, Expanded Scope, Risk, and Team Culture Prepare four behavioral examples that demonstrate judgment and leadership without assuming for...
Design a Task Scheduler for Opaque Long-Running GPU Jobs ("Design Sora")
This system design question evaluates a candidate's ability to architect a distributed job scheduler and orchestrator for expensive, long-running, GPU...
Minimum Delivery Cost Between Cities
Minimum Delivery Cost Between Cities Implement minimum_delivery_costs(delivery_charges, queries). There are n cities indexed from 0 to n - 1, and city...
Schedule GPU Pods and Drain a Node
Problem Implement schedule_gpu_nodes(nodes, request_gpus, delete_name). Each node is {name, gpus, running_pods} and each pod is {name, required_gpus}....
Evaluate Defensive Testing and Pair Programming
An engineering interview asks you to compare two practices that aim to reduce defects: defensive testing and pair programming. Explain what each pract...