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
570
Updated
10.05.2026
11.9k Questions 570 Companies10.05.2026
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
Medium
Software Engineer

Implement ad matching and delivery routing

Implement ad matching and delivery routing Part A: Implement a data structure for an ad-matching service that supports add(campaign), remove(campaign)...

Coding & Algorithms
8
0
79 people solved
Jul 16, 2025
Meta logo
Meta
Hard
Software Engineer

Connect next pointers for each tree level

You are given the root of a binary tree where each node has fields left, right, and next (initially null). For every node, set its next pointer to the...

Coding & Algorithms
2
1
34 people solved
Feb 17, 2026
Amazon logo
Amazon
Easy
Data ScientistSenior+

Describe a challenging project

You are interviewing for an L5 Data Scientist role. Answer the following behavioral questions in a way that demonstrates Deliver Results: 1. Tell me a...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
9
0
85 people solved
Jan 12, 2026
Capital One logo
Capital One
Medium
Data Scientist

Explain fit for Capital One BA

Behavioral Prompt: 2‑Minute Pitch for a Business Analyst Interview at Capital One Task Deliver a concise, 2‑minute response that covers: 1. Who you ar...

Behavioral & Leadership
3
0
43 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Real-Time Google Maps Photos — New Product Ideation

Product Design: Real-Time Street-Level Imagery in Google Maps Assume Google Maps can refresh street-level imagery in near real time across selected co...

Product / Decision Making
10
1
81 people solved
Jul 4, 2025
Amazon logo
Amazon
Medium
Software Engineer

Compute minimum passes to collect numbers

Question You are given an array shelf of n distinct integers that is a permutation of 1…n. Starting with target = 1, you repeatedly scan shelf from le...

Coding & Algorithms
77
0
220 people solved
Jul 29, 2025
Google logo
Google
Hard
Data Scientist

Predict and act on contract renewal risk

Predicting Enterprise Contract Renewal After a Quality Incident Context A video-conferencing provider experienced a spike in call disconnects. You nee...

Machine LearningSupervised LearningFeature Engineering
13
0
102 people solved
Oct 13, 2025
Medium
Data ScientistSenior+

Diagnose zero IE uploads with SQL

On 2025‑09‑01 ('today'), the dashboard shows image uploads for Internet Explorer (IE) dropped to zero. Write SQL to (a) determine if this is a technic...

Data Manipulation (SQL/Python)DebuggingMetric Diagnostics
3
0
50 people solved
Oct 13, 2025
Amazon logo
Amazon
Hard
Software Engineer

Design feedback and feature rollout platform

Design feedback and feature rollout platform System Design: Feedback + Feature Rollout Platform Context Build a multi-tenant platform that lets produc...

System Design
6
0
70 people solved
Aug 8, 2025
CVS Health logo
CVS Health
Hard
Data Scientist

Handle challenges in MMM/MMX

MMM Fragility Diagnosis and Remediation Plan (Weekly, 156 Weeks) Context You inherit a weekly Marketing Mix Model (MMM/MMX) with 156 weeks of data. Th...

Machine Learning
3
0
62 people solved
Oct 13, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer Locked

Solve sliding-window, flattening, decode, and O(1) random set

This multi-part question evaluates competence in string processing and nested parsing, linked-list flattening and recursion depth management, dynamic ...

Coding & AlgorithmsTwo Pointers & Sliding WindowData Structure Design
11
0
130 people solved
Feb 4, 2026
Meta logo
Meta
Medium
Data Scientist

Detect earliest collision among moving cars

You are given n vehicles with kinematics parameters. A “collision” means two vehicles occupy the same position at the same time. Assume continuous tim...

Coding & Algorithms
5
0
44 people solved
Dec 4, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer

Explain database transactions and ACID

Database Transactions and ACID under Concurrency Prompt You are working with a relational database that supports transactions and multiple isolation l...

System DesignTransactions & IsolationDatabase Internals
13
0
103 people solved
Sep 6, 2025
Snapchat logo
Snapchat
Medium
Software Engineer

How do you decide with limited information?

Behavioral Question Describe a time you had to make an important decision with incomplete, ambiguous, or conflicting information. Include: - What deci...

Behavioral & LeadershipAmbiguity & Decision Making
13
0
102 people solved
Nov 26, 2025
Meta logo
Meta
Hard
Data Scientist

Choose robust metrics for skewed comments

Robust central tendency and inference for zero‑inflated, heavy‑tailed counts You are evaluating an A/B test on per‑user daily comment counts. The outc...

Statistics & Math
12
2
85 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Data Scientist

Deliver a Data Solution Under Tight Deadlines

Deliver a Data Solution Under Tight Deadlines Behavioral Prompt: Delivering Under a Tight Timeline Scenario A critical product launch date was moved u...

Behavioral & LeadershipPrioritization & TradeoffsLeadership & Influence
52
0
210 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Software Engineer

Reflect on self, goals, learning, competitions

Prepare structured behavioral answers for these interview questions: 1. Give three words that accurately describe you as a professional, and illustrat...

Behavioral & Leadership
6
0
46 people solved
May 28, 2025
Meta logo
Meta
Medium
Data Scientist

Diagnose a non-significant experiment outcome

A/B Test Interpretation, Power, and Decision-Making Under Asymmetric Loss Context You ran a two-sample A/B test on a primary mean metric (two-sided t-...

Statistics & Math
8
0
52 people solved
Oct 13, 2025
Upstart logo
Upstart
Medium
Data ScientistSenior+

How would you measure causal impact?

Answer the following two analytics interview prompts. Constraints & Assumptions - For causal impact, separate prediction from causal identification. -...

Analytics & Experimentation
3
0
70 people solved
Dec 11, 2024
Capital One logo
Capital One
Medium
Data Scientist

Evaluate Models for Credit-Risk Scoring at Capital One

Evaluate Models for Credit-Risk Scoring at Capital One Scenario You are building a production-grade credit-risk scoring model (predicting probability ...

Machine Learning
24
0
98 people solved
Aug 4, 2025
Previous1...505506507...597Next
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