Meta + Google + TikTok + Amazon 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."
Design a Scalable and Polite Web Crawler
Design a horizontally scalable web crawler with a durable frontier, host-level politeness, deduplication, parsing, and recrawl planning. Examine URL n...
Design a High-Availability Load Balancer
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Explain Your Most Technically Complex Project
This question evaluates technical communication, system architecture reasoning, ownership clarity, trade-off analysis, and operational thinking within...
Design an app-store app recommendation system
This question evaluates a candidate's competency in end-to-end machine learning system design for recommender systems, covering personalization, candi...
Explain overfitting, regularization, and LLM techniques
This question evaluates understanding of model generalization (overfitting vs underfitting), regularization methods (L1 vs L2), modern LLM techniques ...
Design a chatbot over structured and unstructured data
This question evaluates a machine learning engineer's ability to design end-to-end systems that integrate structured and unstructured data, testing co...
Determine Whether a Word Exists in a Graph
This question evaluates proficiency in graph algorithms and backtracking techniques, including traversal strategies, cycle avoidance, and state manage...
Evaluate NLP Classification Models
You are interviewing for a Data Scientist internship at Amazon. The interviewer asks you to walk through how you think about an NLP classification pro...
Solve Tree Diameter and Palindromic Counts
This two-problem prompt evaluates proficiency in tree algorithms and recursion for computing longest paths in binary trees, along with string processi...
Design an Instagram-Style Social Feed
A Meta software-engineer onsite system-design question: design an Instagram-style social feed (photo/video sharing with a personalized home feed). It ...
Select MOST/LEAST appropriate actions (SJT)
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Define Ultra success metrics and detect suspicious transactions
You work on a fintech product with these existing tables (UTC timestamps). You may only use these tables/columns; if a metric cannot be measured direc...
Simulate Monster Team Battles
This question evaluates a candidate's ability to model stateful simulations and implement deterministic battle mechanics with clean data structures an...
Convert Valid Snake Case to Lower Camel Case
Convert Valid Snake Case to Lower Camel Case Given a valid snake-case identifier, convert it to lower camel case. The input consists of one or more lo...
Prepare Behavioral Stories for Stakeholders, Mistakes, and Ownership
Prepare behavioral stories for stakeholders, simplifying systems, mistakes, learning new technology, disagreement, and ownership. <details> <summary>H...
Describe teamwork and personal achievements
The interview included several behavioral questions: 1. Tell me about a time you helped a teammate who was underperforming. 2. Describe the most chall...
Return the Most Frequent Values in an Array
Given a non-empty integer array, return the k values that appear most frequently. Ties are broken by smaller value first. Implement: `python def top_k...
Design an A/B test for search ranking
This question evaluates a data scientist's competency in online experimentation, causal inference, product analytics, and operational metrics engineer...
Caesar Cipher with Translation-Table Optimization
This question tests practical string manipulation and modular arithmetic by requiring implementation of a classic Caesar cipher with correct case-pres...
Solve Rooms and Top-K Streams
This question evaluates algorithmic problem-solving skills across interval scheduling/resource allocation and streaming top-k maintenance, testing com...