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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
Google logo
Google
Medium
Product Manager

Estimation: internet demand generated by a 1,000-student graduate campus

A university campus has 1,000 graduate students. Estimate how much internet bandwidth the campus needs to support them, showing each assumption and yo...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Oct 24, 2023
Amazon logo
Amazon
Medium
Data Scientist

Compute 3-Day Rolling Revenue Averages with Pandas

sales +------------+-----------+-------+---------+ | date | product_id| units | revenue | +------------+-----------+-------+---------+ | 2023-01...

Data Manipulation (SQL/Python)
106
0
508 people solved
Aug 4, 2025
Snapchat logo
Snapchat
Hard
Software Engineer

Design backend for Uber-like ride-hailing service

Design the backend system for a ride-hailing platform similar to Uber. Focus on: - How ride requests are placed and matched with drivers ("order takin...

System Design
4
0
67 people solved
Dec 8, 2025
Point72 logo
Point72
Medium
Data Scientist

List Departments with Student Counts Including Zero

Students +----+--------+---------+ | id | name | dept_id | +----+--------+---------+ | 1 | Alice | 1 | | 2 | Bob | 2 | | 3 | Caro...

Data Manipulation (SQL/Python)
84
0
152 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Product Manager

Facebook Stories Launch Trade-off: DAU Up 10%, Active Creators Down 5%, Roll Back?

You are a product manager at Meta and recently released a new feature in Facebook Stories. After the release, the number of active creators fell by 5%...

Product / Decision MakingLaunch EvaluationMetrics & KPIs
1
0
8 people solved
Oct 31, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Go-to-Market Plan for Student Furniture Rental in a Saturated but Renewing Market

You are the product manager launching a new product into a student market where existing offerings already serve roughly 70 to 80 percent of students....

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
4 people solved
Apr 11, 2024
Snapchat logo
Snapchat
Medium
Data Scientist

Design A/B Test for New Recommendation Algorithm Launch

Design A/B Test for New Recommendation Algorithm Launch A/B Test Design: New Recommendation Algorithm Objective Design a rigorous A/B test to estimate...

Analytics & Experimentation
84
0
326 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Software Engineer

Solve four data structure and algorithms tasks

1) Print the numbers at each level of a binary tree. Given the root, output the values level-by-level (each level on a new line or as a list of lists)...

Coding & Algorithms
7
0
64 people solved
Sep 6, 2025
Google logo
Google
Medium
Product Manager

Reinventing the cane: choose who it serves and what it should do better

Come up with a new cane. Choose who it is for, which of their problems it solves, and why they would pick it over the canes available today. `hint Wal...

Product Design & StrategyProduct Sense
0
0
4 people solved
Mar 21, 2024
Meta logo
Meta
Medium
Software Engineer

Solve sliding window and tree BFS

Solve sliding window and tree BFS Solve a typical medium-level sliding-window problem (e.g., longest substring without repeating characters). LeetCode...

Coding & Algorithms
8
0
77 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Product Manager

Bug Fix or New Feature? A Product Prioritization Framework for Equal-Effort Choices

As a product manager, you have to choose between two pieces of work: building a new feature or fixing a known bug. Either one would take the same amou...

Product / Decision MakingPrioritization & Tradeoffs
0
0
6 people solved
Oct 27, 2024
Google logo
Google
Medium
Product Manager

Root-causing a steady decline in notification delivery for an e-commerce app

You are the product manager at an e-commerce company. Lately you have noticed that notification delivery for the company's app has been declining stea...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
0
0
5 people solved
Jan 28, 2024
CVS Health logo
CVS Health
Easy
Data Scientist

Assess Work Authorization and Professional Experience for Job Change

Assess Work Authorization and Professional Experience for Job Change Initial HR Phone Screen — Behavioral Questions (Data Scientist) Context You are i...

Behavioral & LeadershipMotivation & Fit
33
0
166 people solved
Aug 4, 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
5 people solved
Dec 22, 2023
Meta logo
Meta
Medium
Product Manager

Facebook Product Design: Finding a Doctor Through Friend and Community Referrals

As a product manager at Facebook, you are asked to build a doctor referral program on the platform. Decide what kind of referral it supports and for w...

Product Design & StrategyProduct SensePrivacy & Compliance
0
0
3 people solved
Jul 15, 2024
Google logo
Google
Medium
Product Manager

Product Sense: What Would You Build to Take the Pain Out of Rush Hour?

Rush hour is the stretch of the day when large numbers of people travel at once. As a product manager, what would you build to make it better? Choose ...

Product Design & StrategyProduct Sense
0
0
6 people solved
Dec 30, 2023
Google logo
Google
Medium
Product Manager

Estimate the yearly worldwide X-ray count to size an AI image-analysis service

Estimate how many X-rays are taken around the world in one year. Context: Google has announced that its AI can analyze X-rays about as well as a human...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Feb 23, 2024
Google logo
Google
Medium
Product Manager

Build a Membership Offering for a Science Non-Profit Serving Students and Young Graduates

You are a product manager asked to design a membership program for a non-profit organization. Here is what you know about it: - Its audience is split ...

Product Design & StrategyProduct SenseGrowth & Monetization
0
0
5 people solved
Feb 20, 2024
Meta logo
Meta
Medium
Data Scientist

What features and feature selection would you use?

Context You are building an ML system to rank/promote shop ads in an e-commerce feed/search page. At serving time, the system may score candidate shop...

Machine Learning
5
0
51 people solved
Aug 10, 2025
Google logo
Google
Medium
Product Manager

Launch Plan for a Returnable Food-Container Service Shared by Restaurants

You lead a new project whose goal is to introduce reusable takeout containers for restaurants. As its product lead, explain how you would take the pro...

Product Design & StrategyRequirements & Launch ExecutionBusiness Case Analysis
1
0
8 people solved
Feb 3, 2025
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