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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

Product design: rethink a garage door and prioritize what to change

You are asked what you would change if you had to redesign a garage door. Decide what the redesign should achieve and for whom, find the problems wort...

Product Design & StrategyProduct Design & ImprovementProduct Sense
0
0
5 people solved
Dec 23, 2023
Google logo
Google
Medium
Product Manager

Estimate the Annual Value of Art Sales in the United Kingdom

Estimate the size of the art market in the United Kingdom. The interviewer wants a reasoned estimate built from assumptions you state, not a memorized...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Feb 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Design a reusable web dialog component

You are building a UI component library for a web application and are asked to design and implement a reusable dialog (modal) component. Requirements ...

Software Engineering Fundamentals
3
0
67 people solved
Oct 31, 2025
Better.com logo
Better.com
Medium
Product Manager

WhatsApp India Product Strategy: One Objective, Prioritized Bets and Quarterly Plan

Lay out a one-year product roadmap for WhatsApp in India: what the year should achieve, which bets get it there, and in what order. `hint Pick the yea...

Product Design & StrategyRoadmapping & PlanningProduct Strategy
0
0
4 people solved
Mar 5, 2025
Razorpay logo
Razorpay
Medium
Product Manager

Create a Financial Literacy Product for Children: Users, Features and Success Metrics

Design a product that teaches children about money and personal finance. Walk through who it is for, which needs it should meet, what you would build ...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
9 people solved
Oct 6, 2025
Google logo
Google
Medium
Product Manager

Triage and Resolve a Complaint Spike on One Tripadvisor Restaurant Page as CEO

You are the CEO of Tripadvisor. For the past two weeks the company has been receiving a large amount of feedback and complaints, all about one particu...

Product / Decision MakingTrust & SafetyAmbiguity & Decision Making
1
0
10 people solved
Oct 24, 2025
Etsy logo
Etsy
Medium
Product Manager

Improving a Mature Tax-Filing Product: TurboTax Pro Strategy

You are the product manager for TurboTax Pro, a tax-filing product that has been on the market for some time. How would you improve it? Decide what th...

Product Design & StrategyProduct Design & ImprovementGrowth & Monetization
1
0
10 people solved
Apr 24, 2025
Meta logo
Meta
Medium
Product Manager

Product Strategy: Choosing and Justifying Wikipedia's Next Product Bet

As a product manager at Wikipedia, decide the next product the organization should build. Pick one, explain why it matters most right now, and describ...

Product Design & StrategyProduct StrategyProduct Sense
0
0
4 people solved
Apr 17, 2025
Meta logo
Meta
Medium
Product Manager

Android Strategy: Picking One Flagship Bet for a Keynote Three Years Away

You are a product manager at Google, responsible for the main Android product announcement at a keynote three years from now. What would you build for...

Product Design & StrategyProduct StrategyProduct Sense
0
0
4 people solved
Mar 11, 2025
Vedantu logo
Vedantu
Medium
Product Manager

Grow Uber Go Adoption Among Riders Who Book Uber Auto

You are a product manager at a ride-hailing company such as Uber or Ola. The company wants customers who ride Uber Auto, its auto-rickshaw option, to ...

Product Design & StrategyGrowth & MonetizationProduct Design & Improvement
0
0
4 people solved
Mar 26, 2024
Capital One logo
Capital One
Medium
Data Scientist Locked

Assess 3.4M target and design experiments

Assess whether 3.4M paying subscribers is a reasonable target for a new streaming service with 30 original shows at $15 a month, checking market size,...

Analytics & Experimentation
4
0
41 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Hard
Data Scientist Locked

Design analysis to reduce cold-delivery complaints

This question evaluates a data scientist's end-to-end analytics and experimentation competencies, including precise metric definition, causal diagnost...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
9
0
80 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Resolve cross-functional conflicts using analytics results

Answer the following behavioral prompts for a data science/product analytics role working cross-functionally (PM, Eng, Ads/Sales): 1) Describe a time ...

Behavioral & Leadership
3
0
45 people solved
Oct 14, 2025
TikTok logo
TikTok
Medium
Data Scientist Locked

Design a creator posting-frequency experiment

Design an experiment to test whether a push or email nudge raises how often creators post on a short-video platform, covering metrics, randomization, ...

Analytics & Experimentation
6
0
49 people solved
Oct 13, 2025
Flipkart logo
Flipkart
Medium
Product Manager

Product Sense Case: Helping Badminton Players Find Partners and Games

As a product manager, design a product that brings badminton players together. Decide who the product is for, which problems it solves for them, and w...

Product Design & StrategyProduct SenseGrowth & Monetization
0
0
5 people solved
Feb 7, 2025
Expedia logo
Expedia
Hard
Data Scientist

Choose KPIs and prove impact with experiments

Expedia Search: Profit-Focused Ranking Launch (Onsite) Context You’re on the Search team launching a new hotel-ranking model for enterprise clients wh...

Analytics & Experimentation
7
0
80 people solved
Oct 13, 2025
Tubi logo
Tubi
Medium
Data Scientist

Explain p‑values to a product manager

Interpreting a Two-Sided A/B Test p-value of 0.03 You ran a two-sided A/B test on conversion rate. Results: - Baseline (control) conversion: 5.0% - Ob...

Statistics & Math
5
0
74 people solved
Oct 13, 2025
Square logo
Square
Medium
Data Scientist

Build referral chains and detect cycles

You are given a directed referral graph where each user may have at most one referrer. Input file 'referrals.csv' has columns: user_id (INT), referred...

Coding & AlgorithmsGraphsData Cleaning & Wrangling
15
0
124 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Medium
Machine Learning Engineer

How would you prevent wrong items in deliveries?

Behavioral / Product-Process Scenario You work on a food delivery platform. Customers sometimes receive the wrong items (restaurant packed incorrectly...

Behavioral & LeadershipProduct Design & ImprovementMetric Diagnostics
7
0
139 people solved
Oct 17, 2025
TikTok logo
TikTok
Medium
Data Scientist

Differentiate LDA and QDA; compute boundary

Binary Gaussian Classification: LDA vs QDA You are modeling a 2D binary Gaussian classifier with features (x, y): - Class 0: mean μ0 = (0, 0), covaria...

Statistics & Math
12
0
88 people solved
Oct 13, 2025
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