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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
Capital One logo
Capital One
Medium
Product Manager

Walking Through an End-to-End Plan to Take a New Product to Market

Walk the interviewer through your process for launching a product. `hint Separate the phases Sort the work into what happens before, on and after laun...

Product Design & StrategyRequirements & Launch ExecutionLaunch Evaluation
1
0
10 people solved
Dec 22, 2023
Google logo
Google
Medium
Data Scientist

Build and evaluate bad-link classifier

You have 1,000 URLs labeled as bad or good and a much larger unlabeled pool, with bad links rare. Design features and train a logistic regression. Exp...

Machine LearningSupervised LearningModel Evaluation
7
0
121 people solved
Oct 13, 2025
Adobe logo
Adobe
Medium
Product Manager

Chrome for Laptops, Desktops and Tablets: Vision and a Phased Multi-Year Product Plan

You are the product manager for Google Chrome on large screens. Lay out a three-year innovation roadmap for the product. `hint Define the screen, then...

Product Design & StrategyRoadmapping & PlanningProduct Strategy
0
0
5 people solved
Feb 19, 2026
Pinterest logo
Pinterest
Medium
Data Scientist Locked

How would you evaluate a carousel launch?

This question evaluates a data scientist's skills in experimental design, product-metric specification, causal inference, and diagnostic analysis for ...

Analytics & ExperimentationLaunch EvaluationMetric Diagnostics
60
0
374 people solved
Mar 10, 2026
Amazon logo
Amazon
Medium
Software Engineer

Design 2D DP on a DAG

Design 2D DP on a DAG Given a directed acyclic graph G(V, E) with N nodes, M edges, a designated source s, and an integer L, design a 2D dynamic progr...

Coding & Algorithms
12
0
112 people solved
Jul 15, 2025
Amazon logo
Amazon
Medium
Product Manager

Product Design: Indoor Wayfinding for Large Multi-Floor Buildings

Design a digital map product that helps people find their way around the inside of a building. Decide which buildings and which people you would build...

Product Design & StrategyProduct SenseMetrics & KPIs
1
0
9 people solved
May 6, 2025
Meta logo
Meta
Medium
Data Scientist

Evaluate AI-assisted ad creation

Meta is considering launching an AI-assisted ad creation feature for advertisers. The feature helps advertisers generate ad copy and/or creatives insi...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
32
0
225 people solved
Feb 23, 2026
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Sizing Airbnb's US Revenue Bottom-Up from Listings, Booked Nights and Fees

You are interviewing for a product manager role and are asked to estimate, with no access to data, how much revenue Airbnb earns in a year from its bu...

Product / Decision MakingEstimation & Market Sizing
0
0
9 people solved
Jan 5, 2025
eBay logo
eBay
Medium
Software Engineer Locked

Implement bitmap-based block allocator

The bitmap-based block allocator evaluates understanding of data structures, contiguous allocation algorithms, and low-level state management; it is c...

Coding & Algorithms
10
0
81 people solved
Feb 12, 2026
Google logo
Google
Easy
Data ScientistSenior+

Explain mixed models and fixed vs random effects

In an applied DS setting, you are modeling an outcome (e.g., watch time per session, conversion, or rating) across multiple entities (e.g., users, cre...

Statistics & MathRegression & Statistical Modeling
18
0
131 people solved
Oct 13, 2025
Tesla logo
Tesla
Medium
Software Engineer

Describe how you use Kubernetes

Describe how you use Kubernetes System Design: Practical Kubernetes (K8s) Use and Operations Context: In a technical screen, you are asked to describe...

System DesignContainers & OrchestrationCI/CD & Deployment
19
0
167 people solved
Jul 26, 2025
TikTok logo
TikTok
Medium
Product Manager

Market Sizing: Estimating the Number of Content Creators in India

You are interviewing for a product manager role at TikTok. Estimate the number of content creators in India. Say who you are counting, explain each as...

Product / Decision MakingEstimation & Market Sizing
0
0
9 people solved
Aug 10, 2025
Uber logo
Uber
Medium
Data Scientist Locked

Derive paying users over time with churn

This question evaluates the ability to model user conversion and churn with discrete-time recurrence relations, derive closed-form expressions for pay...

Statistics & Math
6
0
86 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Rearrange a String So Adjacent Characters Differ

Problem Rearrange the characters of a lowercase string so that no two adjacent characters are equal. Return the lexicographically smallest valid rearr...

Coding & Algorithms
6
0
47 people solved
May 1, 2026
Airbnb logo
Airbnb
Medium
Product Manager

Success Metrics and Guardrails for edX Course Search

How would you measure whether the search bar on edX, the online course platform, is successful? `hint Search is a means A search has only worked if th...

Analytics & ExperimentationMetrics & KPIs
0
0
9 people solved
Dec 27, 2024
Meta logo
Meta
Medium
Data Scientist

Comparing two ad‑insertion strategies

Comparing Two Ad Insertion Methods You are designing an ad insertion system. In a short time bucket or session, there are n eligible content slots whe...

Analytics & Experimentation
15
0
47 people solved
Jul 12, 2025
Disney logo
Disney
Hard
Software Engineer

Design a global multi-game leaderboard

Design a Global, Multi‑Game Leaderboard (Ladder) Service You are designing a global leaderboard platform used by many different games and modes. Each ...

System DesignMultiplayer Game SystemsStorage & Sharding
14
0
132 people solved
Sep 6, 2025
Google logo
Google
Medium
Product Manager

Design the Controls and Interface for a Consumer Time-Travel Device

Imagine you are the product manager for a newly invented consumer device that can send a person to another point in time. Design the interface people ...

Product Design & StrategyProduct Sense
0
0
7 people solved
Jul 22, 2024
OneMain Financial logo
OneMain Financial
Medium
Data Scientist Locked

Choose evaluation metrics for imbalanced risk model

This question evaluates understanding of cost-sensitive decision making, probabilistic thresholding, evaluation metric selection under class imbalance...

Machine Learning
8
0
70 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Choose a Wearable Device Opportunity and Define Its First Version

Identify the best product to build in wearable technology. Decide what the device is, who would wear it and for what problem, why that opportunity bea...

Product Design & StrategyProduct SensePrioritization & Tradeoffs
0
0
8 people solved
Aug 27, 2025
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