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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
Data Scientist

Choose Metrics for Evaluating Fake-User Classifier

Choose Metrics for Evaluating a Fake-User Classifier A sudden spike in daily average comments may be driven by fake users. You are asked to build a bi...

Machine Learning
21
0
75 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Software Engineer

Design pickup point planning for ride-hailing

Design an algorithm and high-level system for recommending a pickup point in a ride-hailing app. A passenger requests a ride from an approximate city ...

System Design
12
0
100 people solved
May 28, 2025
Meta logo
Meta
Medium
Product Manager

Sizing What It Costs Facebook to Keep Its Photo Product Running

Estimate the budget Meta needs to keep Facebook's photo product running. Decide what that budget includes, lay out how you structure the estimate, cal...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Oct 29, 2023
Google logo
Google
Medium
Product Manager

Sizing the Total Data Footprint of Google Maps

Estimate how much storage space Google Maps needs. Decide which parts of the product your estimate covers, break the calculation into pieces you can r...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Dec 23, 2023
Amazon logo
Amazon
Medium
Product Manager

Amazon: Turn Single-Product Checkouts into Multi-Category Baskets

You are a product manager at Amazon working on the shopping experience. Today many customers arrive for one particular kind of product, buy it and che...

Product Design & StrategyGrowth & MonetizationMetrics & KPIs
1
0
9 people solved
Nov 4, 2025
Google logo
Google
Medium
Product Manager

Data Needed to Pick a Location for a New Pizzeria Facing a Chain and a Local Rival

Imagine you want to open a pizza restaurant in a city where two pizza businesses already operate: a Pizza Hut outlet, which belongs to a national chai...

Product / Decision MakingMarket & Competitive AnalysisBusiness Case Analysis
0
0
8 people solved
Feb 20, 2025
Google logo
Google
Hard
Data Scientist Locked

Analyze time series and design validation experiment

This question evaluates competency in time series analysis, change-point detection, count-based forecasting, causal inference and experiment design, a...

Analytics & ExperimentationTime Series & ForecastingCausal Inference
13
0
119 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Accessible Phone Design for Users With No Usable Vision

How would you design a smartphone for people who are blind? `hint Choose whose day you are designing Blind users differ in when they lost their sight,...

Product Design & StrategyAccessibility & Inclusive Design
0
0
5 people solved
Oct 18, 2024
Qualtrics logo
Qualtrics
Medium
Product Manager

Qualtrics Product Strategy: Entering the Public Election Technology Market

You are a product manager at Qualtrics. The company is considering whether its survey and experience-management products could expand to also serve as...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
8 people solved
Jun 14, 2025
Tencent logo
Tencent
Medium
Data Scientist

Implement robust k-means with k-means++ initialization

Implement from scratch in Python (no scikit‑learn) a function kmeans(X, k, max_iter=300, tol=1e-4, random_state=0) that returns (centroids, labels). R...

Coding & AlgorithmsUnsupervised LearningML Coding
7
0
109 people solved
Oct 13, 2025
Oura logo
Oura
Medium
Software Engineer Locked

Implement Server Number Allocation

This question evaluates the ability to design efficient stateful data structures and algorithms for resource allocation, focusing on management of per...

Coding & Algorithms
5
0
35 people solved
Apr 1, 2026
Meta logo
Meta
Medium
Data Scientist Locked

Measure fake account prevalence

This question evaluates a data scientist's competency in fraud measurement, statistical estimation, experimental design, and model evaluation for dete...

Analytics & Experimentation
5
0
52 people solved
Feb 22, 2026
Microsoft logo
Microsoft
Medium
Product Manager

Choose the Strategic Bets and Three-Year Roadmap for Microsoft Teams

You are a product manager on Microsoft Teams, Microsoft's workplace app for chat, meetings, calling and shared work. Leadership asks you to propose wh...

Product Design & StrategyProduct StrategyRoadmapping & Planning
0
0
4 people solved
Jun 23, 2024
Meta logo
Meta
Hard
Data Scientist

Resolve teammate feeling unwelcome with measurable steps

Behavioral Scenario: Psychological Safety Concern Within a Subgroup You are a senior individual contributor or team lead on a remote-first data team. ...

Behavioral & Leadership
9
0
77 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Design an Instant Teleportation Portal Product: Launch Users, Safety and Rollout

Assume a technology exists that can move a person from one place on Earth to any other place instantly. You are the product manager asked to design th...

Product Design & StrategyProduct SenseTrust & Safety
0
0
4 people solved
Mar 13, 2026
Meta logo
Meta
Medium
Data Scientist Locked

Estimate Portal’s causal lift on video-call usage

Estimate the causal effect of buying a home video-calling device on how much people video-call, using call logs and purchase dates with no randomized ...

Statistics & Math
8
0
59 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Building a Google Accessibility Feature for Users With No Sight

As a product manager at Google, design a feature in one of Google's products for people who are completely blind. Explain which product and which user...

Product Design & StrategyAccessibility & Inclusive DesignProduct Sense
0
0
4 people solved
Jun 1, 2024
Google logo
Google
Medium
Product Manager

Back-of-envelope count of the videos in YouTube's library

How many videos are on YouTube? Build an estimate of the total, explain the structure you use, label each assumption, and finish with a number, a rang...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Jan 29, 2024
Google logo
Google
Medium
Product Manager

Pricing case: setting a price for cell-derived blood that eases reliance on donors

A biotech company has started selling blood produced from cells instead of collected from donors, which lowers how much the health system depends on d...

Product / Decision MakingGrowth & MonetizationBusiness Case Analysis
0
0
5 people solved
Dec 31, 2023
Salesforce logo
Salesforce
Medium
Product Manager

Children's Bookcase Concept: Product Design From User Needs to a First Version

You are asked to design a bookshelf for children. Decide which children it serves first, what it does that an ordinary bookshelf does not, and what go...

Product Design & StrategyProduct Sense
0
0
5 people solved
Dec 10, 2023
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