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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
Amazon logo
Amazon
Medium
Software Engineer

Find odd-frequency element with O(1) space

You're given an integer array where exactly one value appears an odd number of times and all other values appear an even number of times. Implement a ...

Coding & Algorithms
7
0
56 people solved
Aug 9, 2025
Meta logo
Meta
Hard
Data Scientist

Determine Group Call Feature Need and Evaluation Methods

Determine Need and Evaluation Methods for Group Calling You are the product analyst for a messaging platform considering a group-calling feature. You ...

Analytics & Experimentation
97
0
282 people solved
Jul 12, 2025
Snapchat logo
Snapchat
Medium
Software Engineer

Describe improving workflow and challenges

Behavioral: Improving a Team's Development Workflow You are a software engineer in a technical screen. Answer using a concise, structured story (e.g.,...

Behavioral & LeadershipOwnership & Execution
5
0
100 people solved
Aug 13, 2025
Google logo
Google
Medium
Product Manager

Envisioning a Refrigerator from Google: Users, Features and Success Metrics

You are a product manager asked to design a refrigerator from Google. Explain what the product should achieve, choose who it is for, propose and prior...

Product Design & StrategyProduct SenseProduct Strategy
0
0
6 people solved
Jan 18, 2024
Instacart logo
Instacart
Medium
Product Manager

Instacart Delivery: Map Failure Points Across an Order and Rank Fixes

You are interviewing for a product manager role at Instacart. The interviewer asks you to lay out the problems Instacart is likely to face across its ...

Product / Decision MakingPrioritization & TradeoffsProduct Design & Improvement
0
0
5 people solved
Apr 24, 2024
Google logo
Google
Medium
Product Manager

Google Mobility Strategy: Weighing a Push Into the Ride-Sharing Market

Google is considering a move into ride-sharing. As a product leader, would you recommend it? Make a clear call and defend it. Explain the forms that e...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
4 people solved
Oct 8, 2024
CloudTrucks logo
CloudTrucks
Medium
Data Scientist

Calculate Average Rate and Cumulative Jobs by State

jobs +--------+---------+-----------+------------+----------------+-------+----------------+---------------+ | job_id | load_id | driver_id | status ...

Data Manipulation (SQL/Python)
1
0
30 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Product Manager

Product Sense: How Facebook Could Help People Plan Weddings

Meta wants Facebook to help people who are planning a wedding. As a product manager, design that experience: explain why it is worth building for Meta...

Product Design & StrategyProduct Sense
0
0
5 people solved
Mar 9, 2024
DoorDash logo
DoorDash
Medium
Product Manager

Instacart: Find and Fix the Most Damaging Customer Problem After Checkout

You are a product manager at Instacart, where customers order groceries from local stores and a shopper picks the items and brings them to the custome...

Product Design & StrategyProduct Design & Improvement
0
0
4 people solved
Sep 29, 2024
Google logo
Google
Medium
Product Manager

Reducing Sign-Up Friction and Drop-Off for a New Feature on a Household Device

You are the product manager for a new feature on a device that people use in their homes. Before anyone can use the feature, they have to get through ...

Product Design & StrategyProduct Design & ImprovementUser Behavior & Funnels
0
0
5 people solved
Oct 24, 2024
Meta logo
Meta
Medium
Product Manager

Mobile App Growth: Diagnose the Sign-up Funnel and Prioritize Acquisition Levers

You own growth for a mobile app, and the goal you have been given is to raise the total number of people who sign up for it. How would you grow sign-u...

Product Design & StrategyGrowth & MonetizationUser Behavior & Funnels
0
0
5 people solved
Apr 28, 2026
Amazon logo
Amazon
Medium
Data Scientist

Implement Function to Determine Mode and Prime Numbers

Scenario Implementing utility algorithms within a data-processing library. Question Write a function that returns the mode of an integer list; if all ...

Coding & Algorithms
22
0
75 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Product Manager

Explain Horizontal vs. Vertical Integration With Examples and Strategic Trade-offs

Explain the difference between horizontal integration and vertical integration as growth strategies. Define each, support the definitions with real ex...

Product Design & StrategyProduct Strategy
0
0
7 people solved
Jun 29, 2024
Google logo
Google
Medium
Product Manager

Fermi estimation case: sizing the airport count of the United States and the globe

Estimate how many airports there are, first in the United States and then across the entire world. Walk through how you structure each estimate, label...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Mar 20, 2024
Meta logo
Meta
Hard
Software Engineer

Design coding platform leaderboard system

Design coding platform leaderboard system System Design: Scalable Coding Platform with Live Global Leaderboard Context Design a coding challenge platf...

System Design
17
0
107 people solved
Jul 29, 2025
Meta logo
Meta
Medium
Product Manager

Ad-Free vs Ad-Supported Facebook: Weighing the Business Model Trade-offs

An interviewer asks you to weigh the trade-offs between Facebook carrying advertising and Facebook carrying none. Lay out what each option means for t...

Product / Decision MakingGrowth & MonetizationProduct Strategy
0
0
5 people solved
Jan 20, 2024
Microsoft logo
Microsoft
Medium
Product Manager

Designing a public payments API for outside developers: flows, endpoints and safeguards

Design an API that lets third-party software build payments into its product. The prompt leaves open whose API this is and which payment flows it cove...

System DesignPlatform & API ProductsAPI Design
0
0
7 people solved
Jun 28, 2024
Google logo
Google
Medium
Product Manager

Reviving Google's Smart Glasses: Target Segment, Product Fixes and Go-to-Market

Google Glass is Google's smart-glasses product: a lightweight frame with a small display in the wearer's view, a camera, and voice and touch controls....

Product Design & StrategyProduct Design & ImprovementProduct Strategy
0
0
5 people solved
Nov 15, 2024
Uber logo
Uber
Medium
Software Engineer

Find leftmost point of maximum brightness

You are given an array of lights, where each light is [p, r] representing a lamp centered at coordinate p on the real number line with radius r, illum...

Coding & Algorithms
3
0
67 people solved
Sep 6, 2025
Google logo
Google
Medium
Product Manager

Product Sense: Designing a Payments Product Aimed at Italian Teenage Boys

As a PM, you are asked to build a payment product whose target users are teenage boys living in Italy. Describe who it serves, what it does, and how y...

Product Design & StrategyProduct Sense
0
0
4 people solved
Jun 29, 2024
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