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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
Meta logo
Meta
Medium
Product Manager

Defining Revenue Objectives and Guardrail Metrics for Instagram Reels

You own Instagram Reels as its product manager. Set out the monetization goals you would give the product and how you would track progress against the...

Analytics & ExperimentationMetrics & KPIsGrowth & Monetization
0
0
5 people solved
Oct 7, 2024
Roblox logo
Roblox
Medium
Data Scientist

Compute GSP vs VCG payments with reserves

Sponsored Search Auction with Quality Scores and Reserve You are analyzing a single-query auction with 2 ad slots. Position CTR multipliers are [0.10,...

Statistics & Math
7
0
86 people solved
Oct 13, 2025
TikTok logo
TikTok
Medium
Data Scientist

Optimize Job Routing in Parallel Machine Scheduling

Scenario In the Production Factory game, jobs with varying processing times arrive and must be routed through two parallel machines to minimize total ...

Coding & Algorithms
26
0
65 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Product Manager

Choosing a North Star and Counter-Metrics for Facebook Stories

You are the product manager for Facebook Stories, the format in which people share pictures or text that disappear from their friends' view after 24 h...

Analytics & ExperimentationMetrics & KPIs
0
0
6 people solved
Oct 18, 2025
SoFi logo
SoFi
Medium
Product Manager

Diagnose, rank and solve the top problems in a digital rotating savings circle app

MoneyFellows runs money circles online. It digitizes the rotating savings and credit association (ROSCA), an informal arrangement people have long org...

Product Design & StrategyProduct Design & Improvement
0
0
4 people solved
Mar 24, 2024
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Estimation: Sizing Checkout Capacity for a Walmart Store Before It Opens

Walmart is planning to open a new store. How would you decide how many cash registers it should have? Walk through how you would structure the decisio...

Product / Decision MakingOperations & Capacity
0
0
6 people solved
Nov 19, 2023
Google logo
Google
Medium
Product Manager

Product Sense: A New App Experience Around Movies and Movie Theaters

Create a new app for cinema. Decide who it is for, which of their problems it tackles first, and why they would choose it over what they use today. `h...

Product Design & StrategyProduct Sense
0
0
4 people solved
Mar 27, 2024
Meta logo
Meta
Hard
Data Scientist

Select interest thresholds under skewness and cost

Profit-Optimal Threshold Selection from an Interest Score You have a per-user interest_score s ∈ [0, 1] for a new feature. The score distribution appe...

Analytics & Experimentation
7
0
57 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Design a Google product that helps people discover, organize and attend events

Google wants to build a product for event gathering, and you are the product manager asked to design it. The brief says nothing more: it names no type...

Product Design & StrategyProduct Sense
0
0
6 people solved
May 4, 2024
Google logo
Google
Medium
Product Manager

Fermi Estimate: Cars on the US-101 Corridor Linking San Francisco and Mountain View

Estimate the number of cars on US Highway 101 on the section that connects San Francisco with Mountain View. Talk through how you would size it, state...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Oct 20, 2023
Google logo
Google
Medium
Product Manager

Airport Capacity Case: A Product Plan for Handling Twice Today's Volume

You are asked to double an airport's throughput, a 100% increase over what it handles today. Decide what throughput should mean, work out what limits ...

Product Design & StrategyOperations & CapacityPrioritization & Tradeoffs
0
0
5 people solved
Nov 2, 2023
Meta logo
Meta
Hard
Data Scientist Locked

How to evaluate Shop ad upranking

This question evaluates a data scientist's competency in causal experimentation, metric design, uplift and channel-substitution analysis, heterogeneou...

Analytics & Experimentation
1
0
33 people solved
Oct 26, 2025
Google logo
Google
Medium
Product Manager

Fermi estimate of annual new-car production volume

Estimate how many brand-new cars were built over the most recent full year. Explain how you frame the estimate, label each assumption, and finish with...

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

Google Product Strategy: Find an Area Where Google Should Invest More and Defend It

You are interviewing for a product manager role at Google. The interviewer asks you to identify a part of the business, a market, or a product area wh...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
5 people solved
Mar 15, 2026
Google logo
Google
Medium
Product Manager

Google product for travelers: pick a segment, a core problem and a first release

Google has asked you, as a product manager, to design a travel app. Decide which travelers it serves and which travel problem it solves, define what t...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
8 people solved
Feb 23, 2025
Google logo
Google
Medium
Product Manager

Plan a Google-Led Initiative to Reduce Homelessness in San Francisco's Downtown Core

Imagine you work at Google and the company wants to do something meaningful about homelessness in downtown San Francisco. Answer as Google, not as the...

Product Design & StrategyProduct Strategy
0
0
4 people solved
Jun 9, 2024
Shopify logo
Shopify
Medium
Data Scientist

Measure Shopify App Store Success

You are a Data Scientist working on the Shopify App Store, a marketplace that connects Shopify merchants with third-party app developers. Merchants us...

Analytics & ExperimentationMetrics & KPIs
22
0
175 people solved
Apr 3, 2026
Google logo
Google
Medium
Product Manager

Fermi Estimate of Weekly Zoom Meeting Volume From Users and Meeting Habits

In a product manager interview, you are asked to estimate how many meetings take place on Zoom in an average week. Lay out your approach, label each a...

Product / Decision MakingEstimation & Market Sizing
1
0
11 people solved
Jun 29, 2025
Google logo
Google
Medium
Product Manager

Turn Google Hangouts into a Revenue Source: Who Pays, and What Do You Build?

You are the product manager for Google Hangouts, Google's chat, voice and video calling product. How would you turn it into a source of profit? Explai...

Product Design & StrategyGrowth & MonetizationProduct Design & Improvement
0
0
5 people solved
Feb 6, 2024
Google logo
Google
Medium
Product Manager

Business Case and Launch Conditions for a Low-Cost Google Pixel Phone

As a PM on Google's Pixel phone team, what would have to be true for a low-priced, entry-level Pixel to be worth launching? `hint Ask what Google gain...

Product Design & StrategyProduct StrategyBusiness Case Analysis
0
0
3 people solved
Nov 12, 2025
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