PracHub
QuestionsExperienceLearningGuidesInterview PrepGreen Card
PracHub

Master your tech interviews with 10,000+ real questions from top companies.

Product

  • Questions
  • Learning Tracks
  • Interview Guides
  • Resources
  • Green Card Tracker
  • Premium
  • Practice with AI agents
  • For Universities

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com
  • (916) 541-4762

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 PracHub. All rights reserved.

Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026
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
Amazon logo
Amazon
Hard
Data Scientist

Measure PMF for Alexa Shopping

Define and Measure Product–Market Fit (PMF) for Alexa Shopping Context You are designing a measurement plan to assess PMF for Alexa Shopping, where cu...

Analytics & Experimentation
3
0
39 people solved
Oct 13, 2025
CVS Health logo
CVS Health
Medium
Data Scientist

Test payment-accuracy lift with p-value and power

AB Test of Payment Accuracy (Two Proportions) Assume transactions in the two periods are independent and large enough for normal approximations. Defin...

Statistics & Math
5
0
65 people solved
Oct 13, 2025
Lowe's logo
Lowe's
Hard
Software Engineer

Explain cloud computing fundamentals

Explain cloud computing fundamentals Design a Cloud-Native, Horizontally Scalable, Fault-Tolerant Web Application for Millions of Users Context You ar...

System Design
3
0
35 people solved
Aug 10, 2025
Amazon logo
Amazon
Medium
Data Scientist

Append country tables and rank salaries in USD

You have separate country-level employee tables that must be appended and ranked by salary converted to USD using an exchange rate table. SQL schema a...

Data Manipulation (SQL/Python)
1
0
18 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Define success metrics beyond time spent

This question evaluates a data scientist's competency in product analytics and experimentation, focusing on metrics design, cohort-based retention mea...

Analytics & Experimentation
2
0
25 people solved
Oct 13, 2025
TikTok logo
TikTok
Medium
Data Scientist

Diagnose Decline in User Engagement and Experience Quality

Diagnose Decline in User Engagement and Experience Quality Product Metrics Deep-Dive and Causal Inference (TikTok) Context You are a data scientist wo...

Analytics & Experimentation
4
0
58 people solved
Aug 4, 2025
TikTok logo
TikTok
Medium
Data Scientist

Analyze promo anomaly and design risk guardrails

During a 2‑hour 11.11 flash sale (11:00–13:00), an account A123 places 80 orders in 10 minutes using 12 payment cards across 5 device_ids; 9 orders sh...

Analytics & Experimentation
10
0
79 people solved
Oct 13, 2025
Meta logo
Meta
Easy
Data Scientist

Posterior probability given model accuracy

Security Classification: Posterior Probability When Flagged You are evaluating a binary classifier that flags potentially bad users. Assume: - Base ra...

Analytics & Experimentation
8
0
40 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Compare Bayesian and frequentist decisions

A/B Test With Beta–Binomial Posteriors and Decision-Making Under Asymmetric Costs You ran a two-arm A/B test on a binary KPI with independent Beta(1, ...

Statistics & MathBayesian StatisticsExperiment Analysis & Readout
10
0
143 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Software Engineer

Answer key behavioral prompts effectively

Prepare responses for these behavioral prompts: 1. Proudest project: Describe the project you’re most proud of and why. 2. Conflict: Tell me about a t...

Behavioral & Leadership
2
0
31 people solved
Oct 21, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Discuss proudest project and conflict handling

Answer the following behavioral questions in depth, demonstrating ownership and leadership: 1. Proudest project and ownership - Describe the projec...

Behavioral & Leadership
10
0
75 people solved
Nov 19, 2025
Millennium logo
Millennium
Easy
Product Manager

Answer first-round HR questions

You are preparing for a first-round HR screening for a Product Manager role. The interviewer may ask common fit and motivation questions rather than d...

Behavioral & LeadershipMotivation & Fit
6
0
106 people solved
Jul 7, 2024
Meta logo
Meta
Medium
Software Engineer

Traverse levels selecting nodes meeting a predicate

Traverse levels selecting nodes meeting a predicate Given the root of a binary tree and a predicate P(value) that returns true for certain node values...

Coding & Algorithms
3
0
24 people solved
Jul 27, 2025
Capital One logo
Capital One
Medium
Data Scientist

Describe resolving ambiguity under pressure

Tell me about a time you were given an ambiguous, calculation-heavy case and the interviewer or stakeholder kept pushing you to 'not go too far.' Desc...

Behavioral & Leadership
5
0
64 people solved
Oct 13, 2025
Atlassian logo
Atlassian
Medium
Data Scientist

Expand Internationally: Data and Strategy for Market Entry

Expand Internationally: Data and Strategy for Market Entry Behavioral + Product Sense (Onsite) Context You are interviewing for a Data Scientist role ...

Behavioral & Leadership
96
0
187 people solved
Aug 4, 2025
Uber logo
Uber
Hard
Data Scientist

Define market-only rider experience metrics

Market-only Rider Experience Metrics and Market Balance Index (MBI) You are designing a metric suite for a rides marketplace where "rider experience" ...

Analytics & ExperimentationMetrics & KPIs
12
0
88 people solved
Oct 13, 2025
Robinhood logo
Robinhood
Hard
Data Scientist

Diagnose sustained drop in executed trades

Brokerage Analytics Troubleshooting: Trades Per Active User Down 22% Context You are the analyst for a brokerage product that spans onboarding through...

Analytics & ExperimentationMetric DiagnosticsExperiment Design (A/B Testing)
12
0
101 people solved
Oct 13, 2025
NVIDIA logo
NVIDIA
Medium
Software Engineer

Describe model-to-GPU execution pipeline

Describe model-to-GPU execution pipeline From Model Definition to GPU Execution: Pipeline and Optimizations You are asked to explain the end-to-end pa...

ML System DesignMemory Management
9
0
122 people solved
Jul 31, 2025
Boston Consulting Group logo
Boston Consulting Group
Medium
Data Scientist

Query top spenders and 7-day growth

Assume 'today' = 2025-09-01. Write a SQL query to: (1) for each model, compute total revenue in the last 7 days (2025-08-26 to 2025-09-01 inclusive) a...

Data Manipulation (SQL/Python)
1
0
17 people solved
Oct 13, 2025
Uber logo
Uber
Hard
Data Scientist

Design an A/B test; choose Z vs T

A/B Test on a Signup Funnel: Sample Size, Test Choice, Sequential Design, and Causal Plan Context You are planning a two-variant A/B test on a signup ...

Statistics & Math
10
0
87 people solved
Oct 13, 2025
Previous1...556557558...596Next
Popular Categories
SQL
Daily Quest

Sign in to earn XP for every problem you solve.

Explore by company

MetaGoogleAmazonAppleMicrosoftNetflixCapital OneTikTokDoorDashUberCoinbaseAirbnbLinkedInSalesforceSnapchatSpotifyPayPalLyftPinterestAnthropicOpenAIDatabricksRipplingJane StreetStripe

Explore by role

Data ScientistSoftware EngineerMachine Learning EngineerProduct ManagerData EngineerData AnalystFrontend EngineerBackend EngineerSite Reliability EngineerTechnical Program Manager

Explore by category

Coding & AlgorithmsSystem DesignMachine LearningML System DesignSQL & PythonAnalytics & ExperimentationBehavioral & LeadershipStatistics & MathProduct / Decision MakingProduct Design & StrategySWE Fundamentals

Popular interview guides

Meta SWEMeta DSMeta PMGoogle SWEGoogle DSGoogle MLEAmazon SWEAmazon DSAmazon DEApple SWEApple MLEMicrosoft SWEMicrosoft DSTikTok SWETikTok DSUber SWEUber DSDoorDash SWEDoorDash DSAirbnb SWEAirbnb DSLinkedIn SWELinkedIn DSNetflix SWECoinbase SWECapital One DSOpenAI SWEAnthropic SWE

Popular question categories

Meta CodingGoogle System DesignAmazon CodingMeta AnalyticsGoogle MLAmazon System DesignCapital One SQLTikTok MLMeta SQLUber AnalyticsDoorDash CodingGoogle CodingNetflix System DesignAirbnb AnalyticsLinkedIn SQL