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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
454
Companies
967
Updated
10.18.2026
454 Questions 967 Companies10.18.2026
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
Google logo
Google
Medium
Product Manager

Estimate the Time for a 100 PB Coast-to-Coast Data Migration

Estimate how long it would take to get 100 petabytes of data from the East Coast of the United States to the West Coast. `hint Find the bottleneck Con...

Product / Decision MakingEstimation & Market SizingTechnical Tradeoffs for PMs
0
0
5 people solved
Aug 7, 2024
Back Market logo
Back Market
Medium
Product Manager

Should Back Market Build a Bulk-Order Checkout with Invoicing? Validate, Size, Decide

You lead the purchase experience at Back Market. A colleague says many shoppers are trying to buy products from sellers in large quantities, and he be...

Product / Decision MakingUser Research & DiscoveryPrioritization & Tradeoffs
0
0
3 people solved
Mar 28, 2025
LinkedIn logo
LinkedIn
Hard
Data Scientist

LinkedIn Product Case Opportunity Sizing

LinkedIn Product Case: Segmentation, Opportunity Sizing, and Adoption Prediction You are interviewing for a Data Scientist role focused on analytics a...

Analytics & ExperimentationSegmentation & Cohort AnalysisEstimation & Market Sizing
14
0
119 people solved
Apr 30, 2025
Google logo
Google
Medium
Product Manager

YouTube daily upload volume: a market-sizing estimate from creator segments

How many videos get uploaded to YouTube on a typical day? Build the estimate out loud: define what you are counting, state each assumption, show the a...

Product / Decision MakingEstimation & Market Sizing
0
0
7 people solved
May 3, 2025
Google logo
Google
Medium
Product Manager

Estimating Uber's Ride Volume from First Principles

Estimate how many rides people take on Uber. The prompt names no market or time period, so settling the scope is part of the task. Set up an equation,...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Apr 28, 2024
Tesla logo
Tesla
Medium
Product Manager

Estimate US Auto Repair Jobs Affected by Maintenance-Free EVs at 5 and 10 Years

Tesla says its electric vehicles need so little upkeep that auto repair and service shops will become obsolete. Estimate how many jobs in the United S...

Product / Decision MakingEstimation & Market Sizing
0
0
2 people solved
Feb 28, 2024
Google logo
Google
Medium
Product Manager

Sizing a Shopping Mall's Passenger Elevator Fleet for Peak Weekend Traffic

You are asked to estimate how many passenger elevators a shopping mall should have. The interviewer gives no details about the mall, so you choose its...

Product / Decision MakingOperations & CapacityEstimation & Market Sizing
0
0
6 people solved
Feb 2, 2025
Google logo
Google
Medium
Product Manager

Facebook cost-per-new-user estimate, production database move plan, LinkedIn home revamp

An interviewer asks three unrelated questions in a row: an estimate, a technical execution question and a product improvement question. Answer each on...

Product Design & StrategyEstimation & Market SizingProduct Design & Improvement
0
0
5 people solved
Sep 10, 2024
Google logo
Google
Medium
Product Manager

Lunar settlement connectivity: sizing the data link and choosing an Earth-Moon network

A settlement of 1,000 people lives on the Moon. You are asked two connected questions: how much internet bandwidth does the settlement need, and how w...

Product / Decision MakingEstimation & Market SizingNetworking
0
0
7 people solved
Jan 1, 2025
LinkedIn logo
LinkedIn
Medium
Product Manager

Fermi Estimation Case: Counting the Computers at LinkedIn

An interviewer asks you to estimate the number of computers that LinkedIn, the professional networking company, has. Lay out your structure, state eve...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Oct 24, 2023
Google logo
Google
Medium
Product Manager

Estimation: sizing Google's total computer fleet

Estimate how many computers Google owns. Show how you break the problem down, label each assumption, and finish with a figure, a range and the assumpt...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Nov 6, 2023
Google logo
Google
Medium
Product Manager

Sizing New York City Demand for a New Bike-Share App: Residents, Commuters, Visitors

Suppose you are launching a bike-sharing app in New York City. Estimate how many people would be interested in using it, walk through your structure, ...

Product / Decision MakingEstimation & Market Sizing
0
0
7 people solved
Jun 21, 2025
Google logo
Google
Medium
Product Manager

Assess Apple's supply-chain, market and pricing exposure to US-China trade friction

How do the trade tensions between the United States and China affect Apple's business? `hint Follow one device Trace an iPhone from where its parts ar...

Product Design & StrategyMarket & Competitive AnalysisProduct Strategy
0
0
3 people solved
Jan 18, 2025
Google logo
Google
Medium
Product Manager

Fermi estimate of how many hotel properties New York City has

How many hotels does New York City have? Give an estimate with a sensible range, show the equation behind it, and say which of your inputs you trust l...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Aug 24, 2024
Google logo
Google
Medium
Product Manager

Build a 2020 Market-Size Estimate for Autonomous Vehicles From First Principles

Estimate the size of the market for driverless cars in 2020. Explain how you define the market, lay out the structure of your estimate, label every as...

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

Estimation: Yearly Time Spent Idling at Red Lights Across the US

Estimate the total time that people in the United States spend sitting in their vehicles while waiting at traffic signals. Agree on what you are count...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Oct 7, 2024
Google logo
Google
Medium
Product Manager

Estimate Yearly US Unit Volume of Hershey's Brand Chocolate Bars

Estimate how many Hershey's chocolate bars were sold in the United States over the past year. `hint Habits differ by person and by occasion Split the ...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Nov 25, 2024
Google logo
Google
Medium
Product Manager

Go-to-market and pricing plan for a working object-teleportation technology

Assume your company has found a way to teleport inanimate objects, and the technology works. As a product manager, explain how you would launch it and...

Product Design & StrategyGrowth & MonetizationProduct Strategy
0
0
5 people solved
Jul 2, 2025
Google logo
Google
Medium
Product Manager

Google Maps monetization: find, prioritize and measure new revenue streams

You are a product manager on Google Maps, and leadership has asked you to grow the revenue the product generates. Explain how you would approach this:...

Product Design & StrategyGrowth & MonetizationProduct Strategy
0
0
5 people solved
Apr 25, 2024
Google logo
Google
Medium
Product Manager

Market Sizing: Yearly US Online Revenue From Fruit and Vegetable Purchases

How much money is spent each year on fruits and vegetables bought online in the United States? Build an estimate, state each assumption as you go, and...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Aug 23, 2024
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