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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
Meta logo
Meta
Medium
Product Manager

Facebook News Feed Photo Density: Finding the Optimal Amount with Metrics and Experiments

Facebook's News Feed shows a mix of content types. As the product manager, you are asked to work out the right number of photos to show in the feed. E...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
0
0
4 people solved
Nov 7, 2024
Google logo
Google
Medium
Product Manager

Should Google Cloud Sell Machine Translation to Developers? Benefits, Risks and a Verdict

Google Cloud is weighing whether to offer Google's machine translation to outside developers and businesses as a paid API, so their own software can s...

Product Design & StrategyProduct StrategyPlatform & API Products
0
0
7 people solved
Dec 11, 2024
Amazon logo
Amazon
Medium
Data Scientist

Coordinate Resources and Resolve Conflicts for Project Success

Coordinate Resources and Resolve Conflicts for Project Success Cross-Functional Leadership: Coordination, Conflict Resolution, Influence, and Bottlene...

Behavioral & Leadership
25
0
105 people solved
Aug 4, 2025
Gopuff logo
Gopuff
Easy
Machine Learning Engineer

Explain SHAP, Word2vec, Random Forests, Normalization, and Transformers

Explain the following machine learning fundamentals. Use definitions, mechanisms, and small conceptual examples; no dataset or company-specific applic...

Machine LearningML FundamentalsModel Interpretability
1
0
23 people solved
Mar 18, 2024
Amazon logo
Amazon
Medium
Data Scientist

Analyze User Engagement with SQL Queries

events +----------+---------+---------------------+ | event_id | user_id | event_time | +----------+---------+---------------------+ | 1 ...

Data Manipulation (SQL/Python)
107
0
302 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Product Manager

PM Behavioral: Owning a Technical Project From Architecture Through Measured Results

You are interviewing for a product manager role. The interviewer asks you to choose one project you owned from kickoff to launch and walk them through...

Behavioral & LeadershipProject Deep DiveTechnical Tradeoffs for PMs
0
0
6 people solved
Nov 30, 2024
Amazon logo
Amazon
Medium
Data Scientist

Implement Reservoir Sampling; Analyze Time and Space Complexity

Scenario Process an unbounded stream of user IDs and maintain a uniform random sample of k users in memory. Question Implement reservoir sampling for ...

Coding & Algorithms
25
0
86 people solved
Aug 4, 2025
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design an online real-time chess game

Design a real-time online chess service with WebSockets, matchmaking, server-authoritative game state and clocks, durable event storage, reconnect, sh...

System DesignMultiplayer Game SystemsReal-Time Systems
30
0
215 people solved
Jan 10, 2025
Amazon logo
Amazon
Medium
Product Manager

Behavioral: Receiving Blunt Criticism of Your Work and What You Changed

Describe a specific time when someone gave you harsh, critical feedback about your work. What was the feedback, how did you react when you first heard...

Behavioral & LeadershipConflict & CollaborationFailure & Learning
0
0
6 people solved
Jul 27, 2025
Amazon logo
Amazon
Medium
Product Manager

Experiment design: measuring whether a gift card incentive drives Prime app adoption

Amazon wants to use a gift card promotion to get Prime members to download the Prime mobile app. Design the test you would run to measure whether the ...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
0
0
6 people solved
Jun 27, 2024
Airbnb logo
Airbnb
Medium
Software Engineer

Prioritize consumer product opportunities

Case: Improve Engagement in a Consumer App with Flat MAU Context You are given a large consumer mobile app whose monthly active users (MAU) have been ...

Behavioral & LeadershipProduct Design & ImprovementMetrics & KPIs
11
0
96 people solved
Sep 6, 2025
Nextdoor logo
Nextdoor
Hard
Software Engineer

Build and evaluate a Colab classification model

Build and evaluate a Colab classification model End-to-End Tabular Classification Workflow in Google Colab You are asked to design and implement a com...

Machine Learning
13
0
92 people solved
Jul 31, 2025
Google logo
Google
Medium
Product Manager

Market-Sizing Estimate: Rain-Driven Umbrella Purchases in One City

Estimate the number of umbrellas that people in a city buy because of rain. Explain how you break the problem down, state each assumption as you make ...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Jul 31, 2025
Meta logo
Meta
Medium
Product Manager

Instagram Feature to Bring Brand-Creator Sponsorship Deals On-Platform, Plus Launch Plan

Brands pay Instagram influencers to publish sponsored posts on their profiles, and influencers also earn a meaningful income from their followers. Yet...

Product Design & StrategyProduct Design & ImprovementRequirements & Launch Execution
0
0
5 people solved
Jul 7, 2024
Visa logo
Visa
Medium
Software Engineer

Maintain pair-sum counts under replacements

You are given two integer arrays A and B and a list of operations: ( 1) Query(T): return the number of pairs (i, j) such that A[i] + B[j] = T. ( 2) Re...

Coding & AlgorithmsData Structure DesignArrays & Strings
7
0
121 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Data Scientist

Evaluate Fake-Account Classifier with Precision and Recall Metrics

Evaluate Fake-Account Classifier with Precision and Recall Metrics Evaluating a Fake-Account Classifier in Production Scenario You have trained a mode...

Machine Learning
9
0
71 people solved
Aug 4, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Build a Product That Keeps Every Member of a Household Safe Online

You are interviewing for a product manager role and are asked to design a solution that lets a family have a safe digital experience. Decide what "saf...

Product Design & StrategyProduct SenseTrust & Safety
0
0
4 people solved
Dec 5, 2024
Boston Consulting Group logo
Boston Consulting Group
Medium
Data Scientist

Improve Model Generalization with Cross-Validation and Feature Engineering

Improve Model Generalization with Cross-Validation and Feature Engineering Predict Next-Month Orders: Train/Test Split, Pipeline, and AUC Context You ...

Machine Learning
6
0
106 people solved
Aug 4, 2025
Uber logo
Uber
Medium
Product Manager

Winning Executive Buy-In for a New Feature: Preparing and Running the Pitch

You are a product manager with an idea for a new feature, and executives and other stakeholders need to back it before your team can build it. How wou...

Behavioral & LeadershipCommunication & StakeholdersLeadership & Influence
0
0
4 people solved
Jan 18, 2025
Amazon logo
Amazon
Medium
Data Scientist

Calculate Monthly Revenue from Orders in 2023

orders | id | order_date | customer | |----|------------|----------| | 1 | 2023-01-03 | 101 | | 2 | 2023-02-14 | 102 | | 3 | 2023-02-20 | 101 | ​ o...

Data Manipulation (SQL/Python)
6
0
48 people solved
Aug 4, 2025
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