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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

Market sizing: how big is California's Tesla Model 3 fleet?

Estimate how many Tesla Model 3 cars there are in California. Walk through how you structure the estimate, call out each assumption, and finish with a...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Mar 17, 2024
Swiggy logo
Swiggy
Medium
Product Manager

Swiggy Strategy: Structuring a Plan to Quadruple Revenue

You are a product manager at Swiggy. How would you take Swiggy's revenue to four times where it is today? The interviewer has made clear they care abo...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
6 people solved
Mar 14, 2024
Google logo
Google
Medium
Product Manager

Estimation: right-sizing the elevators in a typical office building

Estimate how many elevators an average office building should have. Explain how you break the problem down, label each assumption as you make it, and ...

Product / Decision MakingOperations & CapacityEstimation & Market Sizing
1
0
7 people solved
Nov 6, 2023
Uber logo
Uber
Medium
Product Manager

Fermi estimate of daily ride-share trip volume across the United States

Estimate how many ride-share trips people take in the United States on a single day. Show how you structure the estimate, label every assumption, and ...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Mar 18, 2024
Google logo
Google
Medium
Product Manager

Market sizing: Gmail's annual advertising revenue from US users

Estimate how much revenue Gmail earned from advertising in the United States last year. Lay out the structure of your estimate, label each assumption,...

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

Estimation Case: Sizing a Day of Air Travel at San Francisco International Airport

Estimate how many people fly into or out of San Francisco International Airport (SFO) on a single day. `hint Pick what to count from Decide whether to...

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

Driverless Car for Children: Concept, Funding Pitch, Price Point and Year-One Sales

You are asked to imagine a self-driving car built for children. Work through three things: what the product is and how it works, the pitch you would g...

Product Design & StrategyProduct SenseEstimation & Market Sizing
0
0
7 people solved
Apr 27, 2025
Google logo
Google
Medium
Product Manager

AR Glasses Market Sizing: Build a 2031 Unit-Shipment Forecast and Its Drivers

Suppose augmented-reality glasses are on the market in 2031. Estimate how many units will ship during that year, and explain the factors your estimate...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Apr 22, 2024
Netflix logo
Netflix
Medium
Product Manager

Estimation: Sizing Yearly iPad Unit Sales in the United States

Estimate how many iPads are sold in the United States each year. Talk through how you would structure the estimate, state each assumption as you make ...

Product / Decision MakingEstimation & Market Sizing
0
0
3 people solved
Apr 11, 2026
Xiaomi logo
Xiaomi
Medium
Product Manager

Market-sizing estimate of Xiaomi's handset units sold per day

Estimate how many mobile phones Xiaomi sells in a single day. Show how you structure the estimate, label every assumption, and finish with a number an...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Apr 19, 2024
Ola logo
Ola
Medium
Product Manager

Fermi estimate: how many tube lights does a 10-million-resident city use?

A large city has roughly 10 million residents. Estimate how many tube lights the city uses. Show how you break the problem down, label each assumption...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Jan 27, 2024
Google logo
Google
Medium
Product Manager

Sizing the yearly cloud storage footprint of Google Nest camera video

Estimate how much memory Google's Nest cameras needed over fiscal year 2020. The prompt leaves the key terms open, so first agree with the interviewer...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Jun 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
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
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

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

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
Meta logo
Meta
Medium
Product Manager

Instagram Shops Guest Checkout Decision: Conversion vs. Fraud and Account Growth

You are a product manager for Instagram Shops, where businesses list products that people can browse and buy inside Instagram. Assume that today a sho...

Product / Decision MakingProduct Design & ImprovementExperiment Design (A/B Testing)
0
0
7 people solved
Oct 31, 2025
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
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
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