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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
ZEE5 logo
ZEE5
Medium
Product Manager

Find and Prioritize User-Experience Improvements for a Video Streaming Service

You are the product manager for an over-the-top (OTT) streaming service, a subscription video platform of the kind Netflix and Hotstar operate. The go...

Product Design & StrategyProduct Design & ImprovementPrioritization & Tradeoffs
0
0
6 people solved
Jun 13, 2024
Meta logo
Meta
Medium
Data Scientist

Define composite success for search and test it

A new search feature is evaluated with two binary labels per query: relevancy=1/0 and accuracy=1/0. 1) Propose a composite success metric that uses th...

Analytics & Experimentation
3
0
41 people solved
Oct 13, 2025
Snowflake logo
Snowflake
Hard
Data Scientist

Design an A/B test for ML model launch

Feed Ranker A/B Test Design and Powering You are replacing the current ranker with a new model in a feed. Baseline CTR is 2.0%. You expect a +5% relat...

Analytics & Experimentation
8
0
71 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Product Improvement for YouTube's What-to-Watch Suggestions

YouTube suggests videos to people throughout the app. How would you make those suggestions better? `hint Decide what "better" means Better could mean ...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
3 people solved
Mar 18, 2026
Meta logo
Meta
Medium
Product Manager

Meta Ad Reporting Success Metrics: Report Precision, Missed Violations, Wrongful Removals

You are a product manager at Meta. People can report an ad they see in Meta's apps. How would you measure whether this ad-reporting feature is success...

Analytics & ExperimentationMetrics & KPIsTrust & Safety
0
0
4 people solved
May 31, 2025
Point72 logo
Point72
Medium
Quantitative Researcher

Linearize an L1 Trading Penalty

Linearize an L1 Trading Penalty Convert a portfolio problem into a standard linear program. The objective contains a linear expected-return term and a...

Statistics & MathPortfolio Construction & Alpha Research
2
0
36 people solved
Jun 7, 2025
Amazon logo
Amazon
Medium
Data Scientist

Calculate cross-channel login user proportions

Write SQL to compute, for 2025-08-29 through 2025-08-31, the proportion of users who logged in only via mobile, only via desktop, and via both, where ...

Data Manipulation (SQL/Python)
2
0
22 people solved
Oct 13, 2025
Hard
Data Scientist

Demonstrate behavioral problem-solving with STAR

Data Scientist Onsite — Behavioral & Leadership (Use STAR) Answer concisely using the STAR framework (Situation, Task, Action, Result). Prepare brief,...

Behavioral & LeadershipCommunication & StakeholdersFailure & Learning
5
0
97 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Estimation: Working Back From G Suite Revenue to a User Count

You are told that G Suite, Google's paid suite of email, documents, storage and meeting tools for organizations (now called Google Workspace), has rev...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Oct 22, 2023
Dropbox logo
Dropbox
Medium
Product Manager

Build a Two-Year Success Scorecard for Airbnb's Guest and Host Marketplace

Suppose you lead product for all of Airbnb. Explain which metrics you would rely on to judge whether Airbnb is succeeding over the next two years, how...

Analytics & ExperimentationMetrics & KPIs
0
0
9 people solved
Jun 25, 2025
Google logo
Google
Medium
Product Manager

Children's AI Product Concept: Choose a Need, Design the Experience, Define Success

You are a product manager asked to design a new smart product for children, one that is built around AI. Decide who the product is for and which need ...

Product Design & StrategyProduct SenseAI Product Management
0
0
6 people solved
Nov 8, 2023
Instacart logo
Instacart
Hard
Analytics Engineer

Analytics engineer behavioral: vague requests, stakeholder conflict, projects in trouble

In two behavioral rounds for an analytics engineering role, one with a senior member of the team and one with a principal product manager, the intervi...

Behavioral & LeadershipAmbiguity & Decision MakingConflict & Collaboration
0
0
1 people solved
Mar 27, 2026
Uber logo
Uber
Medium
Product Manager

Diagnose Why Fewer Food Orders Are Being Handed Over to Couriers

You are the product manager of a food delivery app, and the count of fulfilled orders has been sliding downward. For this metric, an order counts as f...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
0
0
4 people solved
Nov 2, 2025
Meta logo
Meta
Hard
Data Scientist

Design an A/B test for WhatsApp call reliability

A/B Test Design: Adaptive Codec for Unstable Networks (WhatsApp Calling) Context You join the Calling organization. A PM proposes enabling an adaptive...

Analytics & Experimentation
6
0
66 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Design Experiment to Measure Shopping Feature Impact

Experiment Design: Measure Instagram Shopping Impact Instagram is launching an in-app Shopping feature, such as product tags, shop surfaces, or in-app...

Analytics & Experimentation
14
0
92 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Product Manager

Defining a Metric Framework for Instagram's Discovery Surfaces

You are a product manager at Instagram. How would you tell whether the app's discovery features are succeeding? `hint Walk through one discovery Trace...

Analytics & ExperimentationMetrics & KPIsUser Behavior & Funnels
0
0
6 people solved
Nov 2, 2023
Amadeus logo
Amadeus
Medium
Product Manager

Low-Contact Candidate Visit Experience for In-Office Hiring During a Pandemic

A hiring process still requires every candidate to come to the recruiter's office for an in-person interview, even though a global pandemic is under w...

Product Design & StrategyProduct Design & Improvement
0
0
6 people solved
Jul 2, 2024
SoFi logo
SoFi
Hard
Software Engineer

Scale a key-value store with consistent hashing

Scale a key-value store with consistent hashing System Design: Scale a Key–Value Store with Consistent Hashing Context You have a single-server key–va...

System DesignPartitioning & Consistent HashingConsensus & Replication
10
0
149 people solved
Jul 15, 2025
Google logo
Google
Medium
Product Manager

Estimation: sizing Google's total computer fleet

Estimate how many computers Google owns. Show how you break the problem down, label each assumption, and finish with a figure, a range and the assumpt...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Nov 6, 2023
Google logo
Google
Medium
Product Manager

Android Platform Strategy if a Third-Party Messenger Owns Phone Communication

You are a product manager at Google. Suppose WhatsApp becomes the phone's default communication layer, effectively part of the operating system. How s...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
2 people solved
Mar 5, 2026
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