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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
4.0k
Companies
967
Updated
10.24.2026
4.0k Questions 967 Companies10.24.2026
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
Capital One logo
Capital One
Medium
Software EngineerNew Grad

Benefits of a Customer-Facing Chatbot for a Bank and Its Customers

A bank is considering a chatbot for its customers. In a case-study interview, before any code is shown, the interviewer asks high-level questions: wha...

Product Design & StrategyAI Product Management
67
0
660 people solved
Oct 2, 2026
Pinterest logo
Pinterest
Medium
Data Scientist

Calculate the Percentage of Highly Active Users by Country

Calculate the Percentage of Highly Active Users by Country The impressions table has these columns: | Column | Meaning | |---|---| | impression_id | I...

Data Manipulation (SQL/Python)SQL
31
6
516 people solved
Sep 24, 2026
LinkedIn logo
LinkedIn
Medium
Machine Learning EngineerSenior+

Feed Ranking System Design to Increase User Time Spent

Design how you would use a feed ranking system to increase the time users spend in the feed. The report gives only this goal, so settle the scope with...

ML System DesignRanking ModelsMetrics & KPIs
6
0
49 people solved
Oct 23, 2026
Google logo
Google
Medium
Product Manager

Trust and Safety Plan for Launching Private Messaging on YouTube

Google wants YouTube to add messaging, so that people can hold private conversations inside YouTube instead of interacting only through public feature...

Product Design & StrategyTrust & SafetyMetrics & KPIs
8
0
72 people solved
Oct 19, 2026
Waymo logo
Waymo
Medium
Data Scientist

Compare Two Rare-Event Rates with Different Exposure

Compare Two Rare-Event Rates with Different Exposure Two versions were observed over different amounts of mileage, and each produced only a small numb...

Statistics & MathHypothesis TestingProbability
14
0
181 people solved
Sep 28, 2026
Swiggy logo
Swiggy
Medium
Product Manager

Designing a Food Delivery App Feature That Catches AI-Written Reviews

You are a product manager at Swiggy, the Indian food delivery platform, where customers can review the restaurants they order from and the dishes they...

Product Design & StrategyTrust & SafetyAI Product Management
6
0
93 people solved
Oct 20, 2026
Anthropic logo
Anthropic
Medium
Data Scientist

Describe a New Measurement That Changed a Business Decision

Describe a New Measurement That Changed a Business Decision Describe a time you introduced a new measurement and explain its business impact. State wh...

Behavioral & LeadershipProject Deep DiveMetrics & KPIs
28
0
212 people solved
Sep 28, 2026
Anthropic logo
Anthropic
Medium
Product Manager

Choosing Which Model Capabilities to Improve Next in Claude Sonnet

You are a product manager at Anthropic responsible for Claude Sonnet, the middle tier of the Claude model family, between the smaller Haiku and the la...

Product Design & StrategyAI Product ManagementLLM Evaluation
4
0
59 people solved
Oct 11, 2026
Google logo
Google
Hard
Data Analyst

Investigate a Drop in Sales

Investigate a Drop in Sales Sales have dropped. How would you investigate the cause and decide what to do next? Begin by clarifying the sales definiti...

Analytics & ExperimentationMetric DiagnosticsData Quality & Validation
9
0
180 people solved
Sep 9, 2026
Google logo
Google
Medium
Data Scientist

Compare Predictive Models from Two Vendors

Compare Predictive Models from Two Vendors Two vendors provide models for the same prediction problem. How would you compare them and decide which mod...

Machine LearningModel EvaluationSampling & Estimation
28
1
225 people solved
Sep 23, 2026
Rakuten logo
Rakuten
Medium
Product Manager

Enterprise data platform profit strategy: pricing, expansion, retention and cost to serve

You are the product manager for a data platform whose customers are large enterprises. How would you increase the profits tied to those enterprise cus...

Product Design & StrategyGrowth & MonetizationBusiness Case Analysis
6
0
44 people solved
Oct 21, 2026
OpenAI logo
OpenAI
Hard
Data Scientist

Plan a Free-Trial Analysis and Defend Its Recommendations

Plan a Free-Trial Analysis and Defend Its Recommendations A data science take-home assignment concerns a free trial. The assignment asks you to explor...

Analytics & ExperimentationUser Behavior & FunnelsCommunication & Stakeholders
19
0
270 people solved
Sep 27, 2026
Goldman Sachs logo
Goldman Sachs
Medium
Product Manager

Travel app product design: target traveler, trip journey, MVP, metrics and booking flow

You are asked to design an app for booking travel. How would you approach it? `hint Pick a wedge Travelers can already book through airlines, hotel si...

Product Design & StrategyProduct Sense
3
0
27 people solved
Oct 20, 2026
Waymo logo
Waymo
Medium
Data Scientist

Estimate Event Rates from Unequal-Probability Samples

Estimate Event Rates from Unequal-Probability Samples You have a population table of units and their known probabilities of being selected for inspect...

Statistics & MathSampling & Estimation
5
0
95 people solved
Sep 28, 2026
Capital One logo
Capital One
Medium
Software Engineer

Behavioral: Using AI Tools in Daily Engineering Work and to Improve Efficiency

In a behavioral round for a software engineering role, after several standard questions about past projects, the interviewer asks two questions about ...

Behavioral & LeadershipAI-Assisted Development
19
0
139 people solved
Sep 22, 2026
Waymo logo
Waymo
Medium
Data Scientist Locked

SQL: Count Users With Zero or One Rides per City

Write a PostgreSQL query that counts, per city, the users who have taken zero or one ride in total, including users who never rode. Tests outer joins ...

Data Manipulation (SQL/Python)SQL
22
1
282 people solved
Sep 10, 2026
Uber logo
Uber
Medium
Product Manager

Uber Product Design: Build an AI-Powered Product for Riders or Drivers

You are interviewing for a product manager role at Uber. Design an AI-powered product for a ride-sharing app: choose who it serves and the problem it ...

Product Design & StrategyAI Product ManagementProduct Sense
2
0
35 people solved
Oct 19, 2026
Waymo logo
Waymo
Medium
Data Scientist

Evaluate a New Version in Simulation and Explain a Flat Live Result

Evaluate a New Version in Simulation and Explain a Flat Live Result A new version performs better in offline simulation but shows no detectable improv...

Analytics & ExperimentationLaunch EvaluationHypothesis Testing
11
0
117 people solved
Sep 28, 2026
Whatnot logo
Whatnot
Easy
Software Engineer

One-Way Video Screen: Why Whatnot, Product Critique and Going Above and Beyond

This is a one-way recorded video screen for a software engineering candidate at Whatnot. There is no live interviewer: five questions appear one at a ...

Behavioral & LeadershipMotivation & FitOwnership & Execution
13
0
151 people solved
Sep 27, 2026
Glean logo
Glean
Medium
Data Scientist

SQL: Zero-Filled DAU, Rolling 30-Day MAU, and the MAU Impact of a User-ID Rehash

This SQL round for a data scientist role packed five SQL questions, each with a follow-up, into one hour. The bar was described as error-free answers,...

Data Manipulation (SQL/Python)SQL
6
2
114 people solved
Sep 30, 2026
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