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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
Lyft logo
Lyft
Medium
Product Manager

Lyft Product Sense: Serving Riders on Their Daily Trip to Work

You are a product manager at Lyft, asked to design the product for commuters: people who travel from home to work and back on a regular weekday schedu...

Product Design & StrategyProduct SenseGrowth & Monetization
1
0
10 people solved
Feb 25, 2025
Medium
Data Scientist

Prove reservoir sampling correctness

Design an algorithm to sample k items uniformly at random from a stream of unknown and potentially massive length N, using O(k) memory and one pass. (...

Coding & Algorithms
6
0
68 people solved
Oct 13, 2025
TikTok logo
TikTok
Medium
Product Manager

Product sense: reinvent a home laundry machine pair to win buyers and lift profit

Redesign a washer and dryer with two goals: the machines should sell better, and they should earn more profit. Explain who you would design for, which...

Product Design & StrategyProduct SenseGrowth & Monetization
0
0
7 people solved
Feb 14, 2026
Capital One logo
Capital One
Medium
Machine Learning Engineer Locked

Simulate round-robin package assignment to servers

This question evaluates array-based simulation and control-flow skills for load distribution, including pointer management, modular wrap-around scanni...

Coding & Algorithms
10
0
84 people solved
Jan 20, 2026
Dandy logo
Dandy
Medium
Machine Learning Engineer Locked

Explain ML fundamentals (activations, CV, vision, sorting)

This question evaluates core machine learning competencies including neural network behavior and activation functions, model evaluation and cross-vali...

Machine Learning
8
0
72 people solved
Jan 17, 2026
Meta logo
Meta
Medium
Product Manager

Success Metrics for Meta's Portal Video-Calling Smart Display

You are a product manager at Meta working on Portal, the company's smart display built for video calls over Messenger and WhatsApp. How would you meas...

Analytics & ExperimentationMetrics & KPIsCausal Inference
0
0
5 people solved
Sep 15, 2025
Cloverhealth logo
Cloverhealth
Medium
Software Engineer Locked

Design appointment scheduling data model and APIs

This question evaluates backend data modeling, REST API design, and enforcement of domain constraints within a web framework, focusing on scheduling, ...

System Design
2
0
41 people solved
Feb 5, 2026
Apple logo
Apple
Medium
Software Engineer Locked

Define and Implement Natural-Month Date Comparison

Define and implement a calendar-based comparison that classifies two dates as within, exactly, or over one natural month. Apply absolute ordering, mon...

Software Engineering Fundamentals
3
0
21 people solved
Jun 3, 2026
Front Financial logo
Front Financial
Medium
Product Manager

Improve Internet Speed for End Users: Define Speed, Find the Bottleneck, Prioritize Fixes

How would you make the internet faster for the people who use it? Explain what "faster" should mean, where the delay comes from, what you would change...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
4 people solved
Feb 7, 2025
Google logo
Google
Medium
Software Engineer

Evaluate career paths under visa constraints

Career Decision Analysis After Layoff: 7 Paths, Decision Criteria, Matrix, Recommendation, and 90-Day Plans Context You are a laid-off software engine...

Behavioral & LeadershipAmbiguity & Decision MakingPrioritization & Tradeoffs
17
0
114 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Accessible Door Product Design Centered on People With Little or No Vision

You are a product manager asked to design a door for people with visual impairments. Choose the context and the users you will design for, work out th...

Product Design & StrategyAccessibility & Inclusive DesignProduct Sense
0
0
5 people solved
Mar 16, 2025
Flipkart logo
Flipkart
Medium
Product Manager

Design a kid-safe navigation experience on Google Maps to acquire US users aged 9-14

You are a product manager asked to design a version of Google Maps built for children. The interviewer fixes the scope: the users are 9 to 14 years ol...

Product Design & StrategyProduct SenseGrowth & Monetization
0
0
10 people solved
May 11, 2025
Meta logo
Meta
Medium
Software Engineer

Solve UTF-8 Validation & Shortest Path

Question LeetCode 393. UTF-8 Validation LeetCode 1091. Shortest Path in Binary Matrix https://leetcode.com/problems/utf-8-validation/description/ http...

Coding & Algorithms
4
0
73 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Build, Buy or Partner: How You Chose a Path to Close a Capability Gap

Tell me about a strategy you put together to close a technology gap at your company. How did you decide whether to build the capability, buy it, or ge...

Behavioral & LeadershipProduct StrategyAmbiguity & Decision Making
0
0
6 people solved
Jul 26, 2024
Google logo
Google
Medium
Product Manager

Fermi estimate of Google's query throughput in queries per second

Estimate how many queries Google answers each second. Walk through how you structure the estimate, label every assumption you make, and finish with a ...

Product / Decision MakingEstimation & Market Sizing
0
0
7 people solved
Mar 21, 2024
Meta logo
Meta
Medium
Data Scientist

Determine Impact of Re-share Button on User Engagement

Determine Impact of Re-share Button on User Engagement Assessing Whether the Re-share Button Hurts Engagement Context The platform has a "Re-share" bu...

Analytics & Experimentation
7
0
71 people solved
Aug 4, 2025
Spotify logo
Spotify
Medium
Product Manager

Spotify engagement: defining it, choosing a segment and picking product bets

You are a product manager at Spotify, and your goal is to increase user engagement. How would you approach it, and what would you build? The same ques...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
5 people solved
Dec 18, 2023
Optiver logo
Optiver
Medium
Data Scientist

Compute expected coin flips to meet on octagon

Compute expected coin flips to meet on octagon Meeting Time on a Random Walk Around an Octagon Problem Two independent particles start at opposite ver...

Statistics & MathPuzzles & BrainteasersProbability
8
0
139 people solved
Jul 17, 2025
TikTok logo
TikTok
Medium
Product Manager

Architect the backend of a TikTok-style short-video app

Design the system that powers TikTok. Lay out the main components, show how they work together, and explain how the design copes with the app's scale....

System DesignTechnical Tradeoffs for PMsFile & Media Storage
0
0
8 people solved
Feb 25, 2024
Apple logo
Apple
Medium
Product Manager

Apple Card Missed Payments: Diagnose Causes, Plan Fixes and Measure Success

Apple Card customers are missing their monthly payments in large numbers. The missed payments are hurting their accounts, and the volume of complaint ...

Product / Decision MakingMetric DiagnosticsMetrics & KPIs
0
0
6 people solved
Dec 1, 2024
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