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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

Fermi Estimate: Network Data Rate Behind a Star Wars Holographic Projection

In the Star Wars films, characters send and receive three-dimensional holograms of one another. Estimate how much bandwidth one of these holographic t...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Feb 10, 2024
Google logo
Google
Medium
Product Manager

Estimate towers and home receivers for free student internet during remote schooling

Since the pandemic, people have been working from home and schools have moved their classes online. Students have been given devices such as phones an...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Apr 2, 2025
Amazon logo
Amazon
Medium
Product Manager

Size the yearly cost of abusive orders at Amazon and design countermeasures

You are a product manager at Amazon. Some people exploit the ordering process and the policies around it to get goods or money they are not entitled t...

Product / Decision MakingTrust & SafetyEstimation & Market Sizing
0
0
4 people solved
Jul 27, 2024
Google logo
Google
Medium
Product Manager

Apple Tablet Market Sizing: European iPad Unit Sales for 2019

How many iPads were sold across Europe during 2019? You cannot look anything up, so build the estimate from assumptions you state and explain out loud...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Jun 20, 2024
Google logo
Google
Medium
Product Manager

Plan and Cost a Government-Funded Free Cloud Storage Service for Every US Citizen

Suppose the US federal government decides to give every citizen free online storage space for their personal files. You are the product manager asked ...

Product / Decision MakingEstimation & Market SizingPrivacy & Compliance
0
0
7 people solved
Apr 13, 2025
Meta logo
Meta
Medium
Product Manager

Lift monetization of a Facebook farming game by 10 to 15 percent

Imagine you are the product manager for Farmville, the social farming game played on Facebook and in a mobile app, where players build and tend a farm...

Product Design & StrategyGrowth & MonetizationPrioritization & Tradeoffs
0
0
5 people solved
Oct 14, 2024
Google logo
Google
Medium
Product Manager

Turn Venture Funding Into a New Tech Product: Problem, Users, Revenue Model and Market Sizing

The interviewer plays a venture capitalist who offers you \$20M to build any product or service you like, as long as technology enables it. Walk throu...

Product Design & StrategyProduct SenseEstimation & Market Sizing
0
0
4 people solved
Nov 30, 2025
Google logo
Google
Medium
Product Manager

Self-Driving Market Sizing: Estimating Google's Yearly Autonomous Vehicle Revenue

Estimate how much revenue Google could earn from driverless cars. Explain which business you are sizing, build the estimate step by step, and check wh...

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

Bing Search Growth on Android: Segments, Channels and Launch Steps to Reach 1M Users

Microsoft wants Bing to gain one million new users on Android. As the product manager, put together the go-to-market strategy that would get there: wh...

Product Design & StrategyGrowth & MonetizationMetrics & KPIs
0
0
5 people solved
Nov 14, 2024
Google logo
Google
Medium
Product Manager

Estimate How Long Philadelphia's Airport Needs to Recover From a One-Day Closure

Philadelphia International Airport is fully shut down for 24 hours: no flights take off or land. After it reopens, how long will it take until the air...

Product / Decision MakingOperations & CapacityEstimation & Market Sizing
0
0
5 people solved
May 19, 2025
Google logo
Google
Medium
Product Manager

Forecasting a New Feature's Adoption Lift With Pre-Launch Research and Tests

You are a product manager with a new feature on the roadmap. Before it launches, how would you work out the effect it is likely to have on adoption of...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
0
0
6 people solved
Nov 27, 2025
Google logo
Google
Medium
Product Manager

Fermi estimate of how much data per second Google Maps moves over the network

How much network bandwidth does Google Maps need? Build an estimate, showing your equation, the assumption behind each input and your final figure. `h...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Mar 21, 2024
Google logo
Google
Medium
Product Manager

Turn a location-bound 30-day weather oracle into a Google product

While out on a walk, you pick up a magic relic. Wherever you place it, it gives a highly accurate forecast for the next 30 days, but only for the area...

Product Design & StrategyProduct Sense
0
0
5 people solved
Oct 13, 2024
Google logo
Google
Medium
Product Manager

Fermi Problem: Sizing the Pothole Count on Mainland American Roads

Estimate how many potholes there are in the continental United States. `hint Anchor on what you can size Start from a quantity you can estimate with s...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Nov 26, 2023
Upstox logo
Upstox
Medium
Product Manager

Estimate India's Yearly Paint Demand Across Homes, Buildings and Industry

Estimate how much paint is used in India. Unless the interviewer specifies otherwise, give a yearly figure. State the unit you choose, break the estim...

Product / Decision MakingEstimation & Market Sizing
0
0
7 people solved
Nov 8, 2025
Google logo
Google
Medium
Product Manager

Market-Sizing Estimate of Total Yearly Consumer Spend at US Cinemas

Estimate the total amount of money people spend at movie theaters in the United States in one year. Explain your structure, state each assumption, and...

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

Fermi Estimate: Sizing America's Yearly Gas Expenditure

Estimate how much money is spent on gas in the United States over one year. Lay out the structure of your estimate, label each assumption, and finish ...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Nov 27, 2023
Uber logo
Uber
Medium
Product Manager

Winning Executive Buy-In for a New Feature: Preparing and Running the Pitch

You are a product manager with an idea for a new feature, and executives and other stakeholders need to back it before your team can build it. How wou...

Behavioral & LeadershipCommunication & StakeholdersLeadership & Influence
0
0
4 people solved
Jan 18, 2025
Google logo
Google
Medium
Product Manager

Estimating Lifetime Revenue From an Ad-Free YouTube Subscriber Cohort

YouTube Red is YouTube's paid tier that removes ads. Suppose 1.5% of YouTube's initial user base signs up for it. Estimate the lifetime revenue Google...

Product / Decision MakingEstimation & Market SizingGrowth & Monetization
0
0
4 people solved
Dec 22, 2023
Google logo
Google
Medium
Product Manager

Sizing the homeowner population within the US millennial generation

Estimate how many people in the United States who belong to the millennial generation own a home. Explain how you structure the estimate, label each a...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Jan 12, 2024
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