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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

Showing 20 results
Salesforce logo
Salesforce
Medium
Software Engineer

Implement 64-bit modular exponentiation safely

Implement a function to compute (a^b) mod m where 0 ≤ a,b < 2^61−1 and 1 ≤ m < 2^61−1 using only 64-bit operations without overflow. Provide implement...

Coding & AlgorithmsMath & Number TheoryBit Manipulation
16
0
141 people solved
Jul 31, 2025
Booking.com logo
Booking.com
Medium
Product Manager

How a PM writes and refines user stories engineers can build and test

Walk me through how you write user stories, from where a story starts to the point the team picks it up. Which practices have proven most useful to yo...

Product / Decision MakingRequirements & Launch Execution
1
0
17 people solved
Jul 12, 2024
Meta logo
Meta
Medium
Software Engineer Locked

Answer four array/time/grid query questions

This set of four problems evaluates array manipulation and comparison, time parsing and minute-difference calculation, linear path enumeration with ex...

Coding & AlgorithmsArrays & StringsGrids & Matrices
16
1
203 people solved
Jan 6, 2026
Capital One logo
Capital One
Medium
Data Scientist

Explain App Growth Strategy and Key Performance Metrics

App Growth Strategy and Key Performance Metrics In an onsite Analytics and Experimentation interview, you must explain a favorite digital consumer app...

Analytics & Experimentation
99
0
341 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Software Engineer

Describe difficult project, conflict, and PM collaboration

Behavioral round (15 minutes) Answer the following prompts using concrete examples from your experience. 1. Most difficult project - Describe the m...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
7
0
95 people solved
Dec 15, 2025
Reuters logo
Reuters
Easy
Software EngineerIntern

Explain Python tuples and typical usage

You are asked some Python fundamentals. 1. What is a tuple in Python? Describe its key properties (e.g., ordering, mutability, hashability). 2. How do...

Software Engineering Fundamentals
6
0
54 people solved
Nov 14, 2025
HBO logo
HBO
Hard
Data Scientist Locked

Define scalable train/validation for churn

This question evaluates a data scientist's competency in designing scalable, leakage-safe training, validation, evaluation, and serving pipelines for ...

Machine Learning
6
0
59 people solved
Oct 13, 2025
Coinbase logo
Coinbase
Easy
Data Scientist

Calculate Expected Users Linking Coinbase Wallets

Expected Coinbase Wallet Linking When users sign up for Coinbase, each of the n users is independently prompted to link a crypto wallet. Each user lin...

Statistics & MathProbability
15
0
118 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Model comment count distribution and validate assumptions

You observe daily comment counts per post on a large social app are highly skewed with many zeros. a) Choose an appropriate discrete model among Poiss...

Statistics & MathProbabilitySampling & Estimation
6
0
91 people solved
Oct 13, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer

Implement island counting with BFS and DFS

Question You are given an m x n grid of characters where '1' represents land and '0' represents water. Count the number of distinct islands (connected...

Coding & AlgorithmsGrids & Matrices
11
0
118 people solved
Jul 31, 2025
Pinduoduo logo
Pinduoduo
Easy
Software Engineer Locked

Determine Straight Flush

This question evaluates competency in algorithmic pattern detection and data-structure manipulation applied to domain-specific representations, focusi...

Coding & Algorithms
5
0
40 people solved
Mar 15, 2026
Google logo
Google
Medium
Product Manager

Launch a Live-Event Ticketing Platform to Take Share from Ticketmaster

You are the product manager for a new live-event ticketing product, and the goal is to win market share from Ticketmaster. Explain who you would serve...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
5 people solved
Aug 6, 2025
Robinhood logo
Robinhood
Medium
Data Scientist

Design Real-Time Analytics Pipeline with Kafka and Flink

Design Real-Time Analytics Pipeline with Kafka and Flink Real-Time Clickstream Analytics Pipeline with Kafka and Flink Scenario You need to design a r...

Behavioral & LeadershipBatch & Stream ProcessingMessaging & Event-Driven
16
0
156 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Google Cloud Product Bets to Win Pharmaceutical Companies as Customers

You are a PM at Google Cloud, asked to shape its strategy for the pharmaceutical industry. What should Google Cloud build or offer for drug makers, an...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
3 people solved
Aug 2, 2026
Google logo
Google
Medium
Product Manager

Ranking Stories for a Google News Feed: Objective, Signals and Pipeline

Design the algorithm behind a news feed for Google: the logic that decides which stories the feed shows and in what order. `hint Objective first Befor...

Machine LearningRanking ModelsRecommendation Systems
0
0
9 people solved
Feb 12, 2024
PayPal logo
PayPal
Medium
Software Engineer

Explain Java volatile semantics

Explain Java volatile semantics What does the volatile keyword guarantee in Java's memory model? Describe visibility, ordering (happens-before), and r...

Coding & Algorithms
5
0
73 people solved
Aug 7, 2025
Hudson River Trading logo
Hudson River Trading
Medium
Data Scientist Locked

Derive expected inversions and mean distribution

This question evaluates understanding of permutation inversion statistics, computation of random-variable moments (expectation and variance), and the ...

Machine Learning
11
0
92 people solved
Nov 28, 2025
Uber logo
Uber
Medium
Product Manager

Uber Eats Product Sense: Helping Customers Find the Right Restaurant Faster

You are a product manager at Uber. How would you make restaurant search better? Treat this as the search experience in the Uber Eats app, where custom...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
5 people solved
Sep 25, 2025
Adobe logo
Adobe
Medium
Product Manager

Predict How Email Will Evolve Over the Next Decade and the Product Bets It Implies

You are interviewing for a product manager role at Adobe and are asked a broad strategy question: what is the future of email? Give your point of view...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
7 people solved
Nov 19, 2025
Amazon logo
Amazon
Medium
Software Engineer

Place items into earliest fitting bins

Place items into earliest fitting bins You are given k items with sizes items[0..k-1] and n bins with initial capacities caps[0..n-1]. Process items i...

Coding & Algorithms
6
1
65 people solved
Aug 10, 2025
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