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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
Hard
Data Scientist Locked

Design experiments and observational alternatives

This question evaluates causal inference, experimental design, metric definition and measurement, power analysis, segmentation, and observational stud...

Analytics & Experimentation
2
0
37 people solved
Oct 13, 2025
Easy
Data ScientistIntern Locked

Compute multi-step Markov probabilities and estimate transitions

This question evaluates understanding of discrete-time Markov chains, computation of multi-step transition probabilities from a one-step transition ma...

Statistics & Math
5
0
51 people solved
Sep 28, 2025
Point72 logo
Point72
Medium
Quantitative Researcher

Formulate a Single-Period Stat-Arb Objective

Formulate a Single-Period Stat-Arb Objective Formulate the objective for a single-period statistical-arbitrage portfolio that chooses target holdings ...

Statistics & MathPortfolio Construction & Alpha Research
1
0
27 people solved
Jun 7, 2025
Capital One logo
Capital One
Easy
Data Scientist

Match Netflix profit; derive required subscribers

Subscription Profit and Break-even (All Monthly) Assume all figures are monthly and "M" denotes millions. We model subscription profit as: - Profit = ...

Statistics & Math
5
0
96 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Hard
Data Scientist Locked

Evaluate and test a Top Dasher program

This question evaluates skills in causal inference, experiment design under interference, decision framework development, anti-gaming and selection-bi...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
20
0
141 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Design analysis to test social vs game engagement

Question Hypothesis: Among Oculus (Meta Quest) users, those who use social features are more regularly engaged than those who use game features. Using...

Analytics & Experimentation
9
1
93 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Product design case: reimagining how a car wash works

You are a product manager asked to redesign the car wash. Work out what the redesign should achieve and for whom, find where today's car wash experien...

Product Design & StrategyProduct Design & Improvement
0
0
4 people solved
Nov 26, 2023
Amazon logo
Amazon
Medium
Software Engineer

Model an Extensible Employee Cost Calculator

Design an object model and calculation API for the total cost of an employee. Total cost has four components: 1. Base salary from the employee record....

Software Engineering Fundamentals
4
0
32 people solved
Feb 2, 2026
Lyft logo
Lyft
Medium
Product Manager

Lyft Market-Entry Strategy for Commercially Run Ambulance Services

Lyft is considering a move into privately operated ambulance services, meaning ambulances run by companies rather than by fire departments or other pu...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
4 people solved
Nov 12, 2023
Meta logo
Meta
Hard
Data Scientist

Evaluate Chatbot's Retailer Value and Launch Viability

Evaluate Chatbot's Retailer Value and Launch Viability Scenario You are evaluating whether to launch a B2C chatbot for retailers on a commerce messagi...

Analytics & Experimentation
3
0
59 people solved
Aug 4, 2025
LinkedIn logo
LinkedIn
Medium
Product Manager

Airbnb PM Case: Designing a Furniture Product for the Home-Sharing Marketplace

You are a product manager at Airbnb, and your task is to design furniture. Decide who the furniture is for and which problems it solves, choose what t...

Product Design & StrategyProduct SenseProduct Strategy
0
0
6 people solved
May 15, 2025
Google logo
Google
Medium
Product Manager

Estimation Case: Sizing the Data Footprint of Media Shot on Pixel Phones

Estimate how much storage it would take to hold every photo and video that people have captured with Google's Pixel phones. Walk through your approach...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Jul 22, 2024
Google logo
Google
Medium
Product Manager

Product Design: Self-Driving Rides for Unaccompanied Children and Their Guardians

Design a service in which self-driving cars, with no human driver on board, pick children up and take them where they need to go. Decide who the servi...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
6 people solved
Sep 3, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Evaluate AI-assisted ad creation

This question evaluates a candidate's competence in product analytics, causal inference, experimentation design, metric definition, and monitoring for...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
6
0
97 people solved
Mar 1, 2026
Meta logo
Meta
Medium
Product Manager

Agriculture Product Sense: Choosing a Farmer Segment, Core Pain Point and MVP

Design a product for farms and the people who run them. `hint Narrow the farm "Farms" spans family plots and industrial agribusinesses in very differe...

Product Design & StrategyProduct Sense
0
0
3 people solved
Feb 16, 2026
Google logo
Google
Medium
Product Manager

Product design for companies that have gone permanently remote

Many companies are deciding to stay remote for good, with employees working from home instead of returning to an office. What product would you design...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
9 people solved
Apr 9, 2025
Meta logo
Meta
Hard
Data Scientist

Evaluate New Ad Model with A/B Testing Experiment

Evaluate New Ad Model with A/B Testing Experiment Evaluate a New Ads Recommendation Model via Online Experimentation Scenario You have trained a new a...

Analytics & Experimentation
4
0
67 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Uber Strategy Case: Pick the Highest-Stakes Problem and Plan the Fix

In your view, what is the single most important problem Uber faces, and how would you address it? Commit to one problem, justify why it matters more t...

Product Design & StrategyProduct StrategyExperiment Design (A/B Testing)
0
0
6 people solved
Feb 9, 2026
Meta logo
Meta
Medium
Product Manager

Product Design for a Web Marketplace That Matches Customers With Cleaners

Design a web app that people can use to find and hire a cleaner. `hint Both sides have to say yes A booking happens only when a customer is comfortabl...

Product Design & StrategyProduct SenseGrowth & Monetization
0
0
4 people solved
Dec 19, 2024
Microsoft logo
Microsoft
Medium
Product Manager

WhatsApp product strategy: allocating a one-billion-dollar investment budget

You are the product manager for WhatsApp and have been handed \$1B to invest in the product. How would you use the money, and why? `hint Choose what t...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
4 people solved
Jun 27, 2024
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