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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
Data Scientist

Navigate Crises and Sustain Team Morale Under Pressure

Navigate Crises and Sustain Team Morale Under Pressure Behavioral & Leadership — Data Scientist Onsite Scenario You are working as a Data Scientist on...

Behavioral & Leadership
16
0
90 people solved
Aug 4, 2025
Uber logo
Uber
Medium
Product Manager

Growing revenue for a six-shop pizza chain: own ordering app versus Uber Eats

You own six pizza shops in one city and want to grow revenue. You are deciding between two routes: developing your own mobile app for ordering, or usi...

Product / Decision MakingProduct StrategyBusiness Case Analysis
1
0
7 people solved
Dec 3, 2023
Yubi logo
Yubi
Medium
Product Manager

Design an Age-Gated Alcohol Delivery Category for Swiggy Instamart

You are a product manager at Swiggy. Design a new category that lets Instamart customers order alcohol. `hint Start from where it is legal In India, a...

Product Design & StrategyProduct SenseTrust & Safety
0
0
4 people solved
Oct 18, 2025
Google logo
Google
Medium
Product Manager

Diagnose and Raise Low Play Store Ratings for a Children's Meditation App

You are the product manager for a meditation app made for children. Its average rating on the Google Play Store is described as somewhere in the 3-to-...

Product Design & StrategyProduct Design & ImprovementMetric Diagnostics
0
0
4 people solved
Jun 9, 2024
Google logo
Google
Medium
Product Manager

Cutting Google Photos' storage footprint with infrastructure and product levers

You are a product manager on Google Photos, the service that backs up and stores people's photos and videos. You are asked how you would reduce the to...

System DesignTechnical Tradeoffs for PMsFile & Media Storage
0
0
8 people solved
Jan 22, 2025
Meta logo
Meta
Medium
Data Scientist

Calculate Ad Performance with Click-Through and Conversion Rates

impressions +---------+---------+---------------------+-----------+ | user_id | ad_id | event_time | platform | +---------+---------+-----...

Data Manipulation (SQL/Python)
4
0
34 people solved
Aug 4, 2025
DoorDash logo
DoorDash
Medium
Product Manager

Find the Most Damaging Failure in a Turo, Ticketmaster or Hotel Trip and Scope an MVP

Pick one of three businesses: Ticketmaster, Turo, or a large hotel chain. Describe the worst experience a customer could have with it, then choose a n...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
7 people solved
Jul 20, 2025
Meta logo
Meta
Medium
Software Engineer

Describe conflict resolution and initiative

The behavioral round reportedly consisted of 7-8 standard questions. A polished version of the expected prompts would be: - Tell me about a time you h...

Behavioral & LeadershipConflict & CollaborationLeadership & Influence
6
0
87 people solved
Mar 4, 2026
Google logo
Google
Medium
Product Manager

Google Sheets Success Metrics: North Star, Collaboration Inputs and Guardrails

You are a product manager on Google Sheets. How would you measure whether the product is succeeding? Lay out the metrics you would track and say which...

Analytics & ExperimentationMetrics & KPIs
0
0
4 people solved
Mar 6, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Assess Group Video Chat Demand

This question evaluates a data scientist's product analytics competencies including causal inference, experiment and questionnaire design, proxy metri...

Analytics & Experimentation
4
0
40 people solved
Mar 1, 2026
Meta logo
Meta
Medium
Product Manager

Facebook Friend Suggestions: Finding, Ranking and Presenting People a User May Know

Design the Facebook feature that suggests people a user may know and might want to add as a friend. You may approach it technically, for example by la...

Product Design & StrategyProduct Design & ImprovementRecommendation Systems
0
0
9 people solved
Aug 19, 2024
Meta logo
Meta
Medium
Software Engineer

Solve tree traversal and two-pointer problems

Solve tree traversal and two-pointer problems Implement the following independent problems: 1) Vertical columns: Given a binary tree, return lists of ...

Coding & Algorithms
6
0
77 people solved
Jul 15, 2025
Nextdoor logo
Nextdoor
Medium
Machine Learning Engineer

Build a model using only pandas/numpy

You are given a tabular dataset as a pandas DataFrame df with: - Feature columns (numeric and/or categorical) - A target column y (either binary class...

Machine LearningML CodingFeature Engineering
44
0
299 people solved
Mar 1, 2026
Meta logo
Meta
Easy
Data Scientist Locked

Design metrics and experiment for stolen-post detection

Evaluates skills in metrics design, diagnostic analysis, and online experiment methodology within Analytics & Experimentation for a Data Scientist pos...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
14
0
98 people solved
Dec 18, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Growing WhatsApp Among Children During COVID-19 Lockdowns

You are a product manager on WhatsApp. COVID-19 lockdowns are keeping children at home. How would you grow WhatsApp's adoption among kids during this ...

Product Design & StrategyGrowth & MonetizationTrust & Safety
0
0
6 people solved
Sep 13, 2024
Salesforce logo
Salesforce
Hard
Software Engineer

Architect serving and storage for recommender

Architect serving and storage for recommender System Design: Recommendation Service (Serving + Data Infrastructure) Context Design a production-ready ...

System DesignSystem Design FundamentalsCaching
8
0
104 people solved
Aug 1, 2025
Google logo
Google
Medium
Product Manager

Product sense: helping people with hearing loss experience and enjoy music

You are a product manager asked to design a product that lets deaf and hard-of-hearing people enjoy music. Nothing more is specified: decide what form...

Product Design & StrategyAccessibility & Inclusive DesignProduct Sense
0
0
6 people solved
Mar 7, 2025
Citadel logo
Citadel
Medium
Data Scientist

Determine When a Quadratic Has Finite Minimum

Consider the unconstrained real-valued optimization problem \[ \min_{x \in \mathbb{R}^n} f(x) = x^\top Qx + c^\top x, \] where \(Q \in \mathbb{R}^{n \...

Machine Learning
10
0
124 people solved
Feb 17, 2026
Zendesk logo
Zendesk
Medium
Product Manager

PM Intro Question: Summarizing Your Career, Scope and Outcomes as a Narrative

Give the interviewer an overview of your background in product management: the products you have worked on, what you owned on them, and what came of t...

Behavioral & LeadershipMotivation & Fit
0
0
4 people solved
May 1, 2025
Amazon logo
Amazon
Medium
Software Engineer

Determine string buildability from dictionary

Given a non-empty string s and a list of non-empty words dict, determine whether s can be formed by concatenating words from dict with unlimited reuse...

Coding & Algorithms
6
0
70 people solved
Sep 6, 2025
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