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
LinkedIn logo
LinkedIn
Medium
Data Scientist

Count Article Types Viewed

Count Article Types Viewed You are given article view events and article metadata. Table 1: article_views — one row per article view event. | Column |...

Data Manipulation (SQL/Python)SQLUser Behavior & Funnels
12
0
108 people solved
Aug 3, 2025
Capital One logo
Capital One
Medium
Data Scientist

Evaluate Renewable Investment Factors for Government Electricity Supply

Evaluate Renewable Investment Factors for Government Electricity Supply You are the CEO of Energy One, an incumbent utility evaluating whether to inve...

Behavioral & LeadershipBusiness Case Analysis
106
0
233 people solved
Jul 12, 2025
PayPal logo
PayPal
Medium
Data Scientist

Explain P-Value and Errors in A/B Testing

Explain P-Value and Errors in A/B Testing A/B Test Design and Analysis: Core Concepts Scenario You are advising on the design and analysis of an A/B t...

Analytics & Experimentation
7
0
80 people solved
Aug 4, 2025
Roku logo
Roku
Medium
Data Scientist

Measure Speaker's Impact Using Propensity Score Matching

Measure a Speaker's Impact Using Propensity Score Matching A company releases an optional smart speaker. Some users purchase and link the speaker to t...

Analytics & ExperimentationCausal Inference
45
0
183 people solved
Jul 12, 2025
Adobe logo
Adobe
Medium
Software Engineer

Persist with an Initiative Others Doubt

Question Tell me about an initiative you continued to advocate for even though others initially doubted it. How did you test your belief, earn support...

Behavioral & Leadership
1
0
14 people solved
Apr 19, 2026
Meta logo
Meta
Medium
Data Scientist

Construct a 95% Confidence Interval for Comment Counts

Construct a 95% Confidence Interval for Comment Counts Comment Activity Analysis: Mean CI, Sampling Distribution, and 95th Percentile Context You have...

Statistics & Math
5
0
64 people solved
Aug 4, 2025
Uber logo
Uber
Hard
Software Engineer Locked

Minimize time using elevator then climb stairs

This question evaluates a candidate's ability to model and optimize a discrete decision under resource constraints, testing algorithmic optimization, ...

Coding & AlgorithmsMath & Number Theory
12
0
106 people solved
Oct 18, 2025
NVIDIA logo
NVIDIA
Medium
Software Engineer

Explain a shader compiler pipeline

Explain a shader compiler pipeline Describe the architecture of a shader compiler that ingests GLSL/HLSL and outputs SPIR-V or ISA. Cover lexical anal...

Coding & AlgorithmsParsing & Interpreters
10
0
89 people solved
Aug 9, 2025
LinkedIn logo
LinkedIn
Medium
Data Scientist

How to analyze Simpson's paradox

A marketing team wants to evaluate a new email campaign. Two email versions, A and B, were tested over two weeks in two cities: San Francisco and New ...

Analytics & Experimentation
8
0
83 people solved
Sep 5, 2025
Etsy logo
Etsy
Medium
Data Scientist

Measure and Improve Listing Quality with Key Metrics

Measure and Improve Listing Quality with Key Metrics Evaluating and Improving Listing Quality in an Online Marketplace Scenario You are a product/anal...

Analytics & Experimentation
60
0
156 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Software Engineer

Count uniques in sparse sorted array

Question A sorted array contains many duplicates but only a very small number of distinct values. Design an algorithm that counts how many unique numb...

Coding & Algorithms
32
0
32 people solved
Aug 4, 2025
TikTok logo
TikTok
Medium
Data Scientist

Determine Metrics for Evaluating Homepage Recommendation Carousel

Determine Metrics for Evaluating Homepage Recommendation Carousel Experiment Evaluation: Homepage Recommendation Carousel Scenario A product team has ...

Analytics & Experimentation
3
0
48 people solved
Aug 4, 2025
OneMain Financial logo
OneMain Financial
Medium
Data Scientist

Maximize Probability of Drawing Two Red Balls

Maximize Probability of Drawing Two Red Balls Optimize Two-Basket Allocation for Red-Red Draws Setup You have 100 red balls and 100 blue balls to dist...

Statistics & Math
5
0
83 people solved
Aug 4, 2025
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Choose DynamoDB vs MySQL for a backend

This question evaluates a candidate's ability to reason about data modeling, access patterns, query complexity, consistency and transactional requirem...

Software Engineering FundamentalsStorage & ShardingTransactions & Isolation
17
0
135 people solved
Mar 1, 2026
Samsara logo
Samsara
Medium
Machine Learning Engineer

Discuss salary expectations

Compensation Expectations (Machine Learning Engineer, Onsite) Context: You are interviewing for an onsite Machine Learning Engineer role. The intervie...

Behavioral & Leadership
2
0
40 people solved
Aug 14, 2025
Schneider Electric logo
Schneider Electric
Medium
Software EngineerIntern

Compare JavaScript == and === operators

In JavaScript, what is the difference between the == and === operators? Explain: 1. How each operator compares two values. 2. What type coercion is an...

Software Engineering Fundamentals
3
0
41 people solved
Dec 8, 2025
Lyft logo
Lyft
Easy
Software Engineer

Validate a Binary Search Tree Iteratively

Problem Determine whether a binary tree is a valid binary search tree. Every value in a node's entire left subtree must be smaller than the node value...

Coding & Algorithms
2
1
45 people solved
Apr 14, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Describe cross-team collaboration on past projects

In a behavioral interview with an engineering manager, you are asked to discuss your previous project experience, with a particular focus on cross-tea...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
10
0
91 people solved
Dec 8, 2025
Capital One logo
Capital One
Hard
Data Scientist

Define and validate an airline profitability metric

Airline Route Profitability Metric with Quality Guardrails Context You need a single, decomposable primary metric for airline route profitability that...

Analytics & ExperimentationMetrics & KPIsBusiness Case Analysis
6
0
110 people solved
Oct 13, 2025
Uber logo
Uber
Hard
Software Engineer

Maintain the First Value That Appears Exactly Once

Design a data structure that maintains a stream of integers and returns the first value that appears exactly once. Implement: `python class FirstUniqu...

Coding & Algorithms
1
0
7 people solved
Apr 17, 2026
Previous1...502503504...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