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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: Size the Piano-Tuning Workforce Serving San Francisco

How many piano tuners would you estimate work in San Francisco? Talk through your structure out loud, state each assumption as you make it, and finish...

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

Per-Capita Monthly Article Consumption in the U.S.: A Market-Sizing Estimate

Estimate how many articles the average person in the United States reads in one month. Explain how you define the quantity, build the estimate step by...

Product / Decision MakingEstimation & Market Sizing
0
0
7 people solved
Oct 1, 2025
Playstation logo
Playstation
Medium
Product Manager

Go or no-go recommendation on Amazon launching its own smartphone

You are a product manager at Amazon, and you have to decide whether the company should enter the smartphone market. Senior management will discuss it ...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
5 people solved
Apr 9, 2024
Uber logo
Uber
Medium
Product Manager

Analyzing How the COVID-19 Pandemic Reshaped Uber's Business

Analyze how the COVID-19 pandemic affected Uber as a business. `hint Follow each side of each marketplace Uber connects more than one kind of customer...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
6 people solved
Dec 26, 2024
Google logo
Google
Medium
Product Manager

Gmail capacity estimate: request traffic its servers handle each second

Estimate how many queries Gmail handles per second. Explain what you count as a query, structure the estimate, label each assumption, and finish with ...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Dec 12, 2023
Google logo
Google
Medium
Product Manager

Assess Market Viability of an App Where Readers Share the Daily News With Seniors

You are evaluating an idea for a mobile app that connects older adults with people who meet them over a call and read them the day's news from the spe...

Product Design & StrategyEstimation & Market SizingProduct Strategy
0
0
7 people solved
Feb 16, 2024
Google logo
Google
Medium
Product Manager

Market-Sizing Estimate: Rain-Driven Umbrella Purchases in One City

Estimate the number of umbrellas that people in a city buy because of rain. Explain how you break the problem down, state each assumption as you make ...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Jul 31, 2025
Google logo
Google
Medium
Product Manager

Size the Yearly Server, Disk and Accelerator Spend Behind One Google Photos Account

You are a product manager at Google. Estimate the hardware cost of supporting one Google Photos user: the machines and equipment Google needs so that ...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Aug 16, 2025
Google logo
Google
Medium
Product Manager

Product Strategy for a 15-Minute San Francisco–Seattle Travel Technology

Google is developing a technology that can carry a person from San Francisco to Seattle in 15 minutes, at \$1000 per person for a one-way trip. As a p...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
6 people solved
Dec 17, 2023
Google logo
Google
Medium
Product Manager

Network load and connectivity trade-offs of a handheld device for elementary-age kids

You are a product manager on a team building a handheld device meant for children in elementary school. What would this device mean for the networks i...

Product / Decision MakingTechnical Tradeoffs for PMsEstimation & Market Sizing
0
0
6 people solved
Dec 27, 2023
Microsoft logo
Microsoft
Medium
Product Manager

Market Sizing: Apple's 2022 iPhone Unit Volume in the Indian Market

Estimate how many iPhones were bought in India during 2022. Walk the interviewer through how you structure the estimate, label each assumption, do the...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Apr 18, 2026
Google logo
Google
Medium
Product Manager

Spotify Revenue Strategy: Sizing the Levers for Fivefold Growth in Five Years

You are a product manager at Spotify. Leadership wants the company's revenue to reach five times its current level within five years. How would you ge...

Product Design & StrategyGrowth & MonetizationEstimation & Market Sizing
0
0
3 people solved
Aug 5, 2025
Newton School logo
Newton School
Medium
Product Manager

Guesstimate: sizing Zomato's food-delivery rider fleet in Bengaluru

Size Zomato's food-delivery rider fleet in Bengaluru (Bangalore), India: roughly how many delivery partners does it have? `hint Decide what you are co...

Product / Decision MakingOperations & CapacityEstimation & Market Sizing
0
0
4 people solved
Jun 2, 2025
Shipyaari logo
Shipyaari
Medium
Product Manager

Product Sense: A Non-Smartphone Device Seniors Use to Stay in Touch, Aiming for 80% Share

Design a new communication device for older people. It must be something other than a smartphone, and the aim is for it to win 80% of its target marke...

Product Design & StrategyAccessibility & Inclusive DesignGrowth & Monetization
0
0
3 people solved
Jul 30, 2025
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

Estimate Video Viewing Time and Video Count on a 2 GB Data Allowance

Estimate how many videos a person could watch with 2 GB of data. Explain how you get from a video's resolution to the amount of data it uses per minut...

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

Back-of-envelope estimate: what remote work costs a mid-sized app maker in output

A mid-sized company that develops apps moves its employees from the office to remote work. Estimate how much productivity the company should expect to...

Product / Decision MakingEstimation & Market SizingMetrics & KPIs
0
0
7 people solved
Nov 10, 2025
Capital One logo
Capital One
Medium
Data Scientist

Evaluate Energy One's Transition to Renewable Energy Sources

Evaluate Energy One's Transition to Renewable Energy Sources Energy One is evaluating a move from fossil fuels to renewable power and must analyze fin...

Analytics & ExperimentationBusiness Case AnalysisMetrics & KPIs
64
0
193 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Fermi Exercise: Sizing Daily Travel Volume Across India

Estimate how many people travel in India on a given day. Walk through how you structure the estimate, label each assumption, and finish with a figure ...

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

Pitching Google Leadership on a Smartwatch Built for Older Adults

You are a product manager at Google, and you want the company to build a wristwatch designed for older adults. How would you convince leadership to fu...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
3 people solved
Sep 8, 2025
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