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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
Dandy logo
Dandy
Medium
Machine Learning EngineerSenior+

How do you interpolate in 3D?

Given two points in 3D space, p0 = (x0, y0, z0) and p1 = (x1, y1, z1), how do you compute a point between them using interpolation? Define the interpo...

Software Engineering FundamentalsMath & Number Theory
11
0
96 people solved
Apr 5, 2026
Transunion logo
Transunion
Medium
Data ScientistIntern

Describe past project experience clearly

You are interviewing for a Data Scientist Intern role in an asynchronous video interview format. Prepare concise, structured responses to the followin...

Behavioral & Leadership
6
0
66 people solved
Apr 1, 2026
Freddie Mac logo
Freddie Mac
Medium
Machine Learning EngineerSenior+

Describe a Machine Learning Project

In a Lead Machine Learning Engineer interview, present one machine learning project that you led or substantially owned. In 2-4 minutes, cover: - A 20...

Behavioral & Leadership
5
0
41 people solved
Mar 29, 2026
Samsung logo
Samsung
Medium
Data Scientist

Plan parking demand for a retail store

A retailer similar to Best Buy is considering building a customer parking lot next to one of its stores. You are asked to determine what data you woul...

Analytics & ExperimentationBusiness Case AnalysisOperations & Capacity
2
0
41 people solved
Mar 19, 2026
Coinbase logo
Coinbase
Medium
Data Scientist Locked

Design an Identity Trust Experiment

This question evaluates a candidate's abilities in experimental design, causal inference, metric definition, interference mitigation, sample size esti...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
6
0
91 people solved
Mar 17, 2026
Google logo
Google
Medium
Product Manager

Pick the Signature Feature That Sets a New Music Streaming Service Apart

You are the product manager for a music subscription service that is about to launch to consumers. People who might sign up can already pick among est...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
1
0
10 people solved
Mar 11, 2026
Xometry logo
Xometry
Medium
Machine Learning EngineerSenior+

Explain an End-to-End ML Project

In a first-round interview for a lead machine learning role, walk through your background and one machine learning project you led in detail. Your ans...

Machine Learning
3
0
40 people solved
Mar 7, 2026
Meta logo
Meta
Medium
Product Analyst

Analyze DoorDash marketplace product decisions

You are a product-focused data scientist at DoorDash. Discuss how you would approach the following three product analytics and experimentation problem...

Analytics & Experimentation
4
0
53 people solved
Feb 19, 2026
DoorDash logo
DoorDash
Easy
Data Scientist Locked

How would you diagnose a completed orders drop?

This question evaluates a candidate's ability to diagnose a drop in completed orders in a two-sided marketplace, emphasizing competencies in data anal...

Analytics & ExperimentationMetric Diagnostics
20
0
320 people solved
Feb 14, 2026
Intersystems logo
Intersystems
Medium
Software Engineer Locked

How would you evaluate an AI feature?

This question evaluates a candidate's ability to design an end-to-end evaluation plan for AI-powered features, covering competencies in defining user ...

Machine Learning
4
0
40 people solved
Feb 12, 2026
Citadel logo
Citadel
Easy
Data Scientist Locked

Find constant minimizing absolute error

This question evaluates understanding of L1 loss minimization, robust central-tendency estimators, and order-statistics reasoning for point estimation...

Statistics & MathRegression & Statistical Modeling
17
0
170 people solved
Feb 10, 2026
Meta logo
Meta
Medium
Product Manager

North-Star and Guardrail Metrics for Launching Facebook Events in 2011

It is 2011 and you are the product manager planning the launch of Events on Facebook, a feature that lets someone set up a gathering with a time and p...

Analytics & ExperimentationMetrics & KPIs
0
0
7 people solved
Feb 4, 2026
Meta logo
Meta
Easy
Product Analyst Locked

Write SQL for call pickup and usage metrics

This question evaluates proficiency in SQL data manipulation—specifically aggregation, joins, filtering, and safe handling of edge cases—to compute ca...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
3
0
68 people solved
Feb 2, 2026
Rippling logo
Rippling
Hard
Software Engineer Locked

Present a Project and Reflect

This question evaluates a candidate's ability to communicate technical project work, demonstrate ownership, leadership, decision-making, measurable im...

Behavioral & LeadershipProject Deep DiveFailure & Learning
9
0
140 people solved
Feb 1, 2026
MathWorks logo
MathWorks
Medium
Software Engineer Locked

Design a multi-tenant course purchase and delivery system

This question evaluates a candidate's skills in designing scalable multi-tenant architectures, covering data modeling for tenants, organizations, and ...

System Design
7
0
64 people solved
Jan 22, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Build a responsive grid of fixed boxes

This question evaluates front-end layout and responsiveness skills including HTML/CSS and React component rendering, plus performance scaling for larg...

Software Engineering FundamentalsCSS & Layout
6
0
78 people solved
Jan 22, 2026
Wtw logo
Wtw
Easy
Data Scientist Locked

Explain normal distribution and standardize it

This question evaluates understanding of the Gaussian (normal) distribution and the concept of standardization, assessing competencies in probability ...

Machine Learning
1
0
29 people solved
Jan 22, 2026
O
Others
Medium
Software Engineer Locked

Write a quarterly SQL report and a bash max-file script

This question evaluates proficiency in SQL conditional aggregation and date-based grouping alongside shell scripting skills for recursive filesystem t...

Software Engineering Fundamentals
2
0
43 people solved
Jan 20, 2026
Easy
Software Engineer Locked

Clean up all Docker resources

This question evaluates proficiency in Docker resource management, covering containers, images, and volumes and the ability to perform a complete envi...

Software Engineering Fundamentals
1
0
36 people solved
Jan 18, 2026
DoorDash logo
DoorDash
Medium
Data Scientist Locked

Investigate LA Completed Orders Decline

This question evaluates a data scientist's skills in product analytics, causal inference, metric decomposition, anomaly investigation, and experimenta...

Analytics & Experimentation
5
0
54 people solved
Jan 15, 2026
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