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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026
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
Oracle logo
Oracle
Medium
Data ScientistIntern Locked

Explain Medical AI Data and Evaluation

This question evaluates competence in medical conversational AI covering data sourcing and cleaning, leakage-aware dataset splitting, model choice (pr...

Machine Learning
3
0
58 people solved
Jan 20, 2026
Coinbase logo
Coinbase
Easy
Product Manager

Introduce Yourself, Why Coinbase, and Career Goals

You are interviewing for a Product Manager role at Coinbase. Prepare concise, truthful opening answers to these three prompts: 1. Tell me about yourse...

Behavioral & LeadershipMotivation & Fit
9
0
87 people solved
Mar 20, 2025
Sybill logo
Sybill
Medium
Software Engineer

Describe a project and ask questions

Describe a project and ask questions Behavioral: Walk Through a Recent Project End-to-End (Software Engineer — Technical Screen) Provide a concise, st...

Behavioral & Leadership
6
0
62 people solved
Aug 10, 2025
Amazon logo
Amazon
Medium
Software Engineer

Describe challenges, mistakes, timeline management, communication

Behavioral & Leadership – Software Engineer Technical Screen Context: You are preparing for a software engineer technical screen that emphasizes behav...

Behavioral & Leadership
8
0
70 people solved
Aug 14, 2025
Capital One logo
Capital One
Medium
Data Scientist

Quantify and optimize team-match funnel

Team-Matching Funnel: Metrics, Targets, and a 14-Day Experiment Plan Context You are designing analytics for a recruiting "team-matching" funnel that ...

Analytics & Experimentation
3
0
45 people solved
Oct 13, 2025
Meta logo
Meta
Easy
Machine Learning Engineer Locked

Solve two linked list/array tasks

This two-part question evaluates proficiency with fundamental data structures and algorithmic problem-solving—specifically linked list manipulation an...

Coding & AlgorithmsLinked ListsBinary Search
3
0
75 people solved
Dec 14, 2025
Airwallex logo
Airwallex
Medium
Data ScientistSenior+ Locked

How would you measure billboard impact?

This question evaluates a data scientist's skills in experiment and product design, causal inference (including propensity-score approaches), metric d...

Analytics & Experimentation
7
0
67 people solved
Oct 24, 2025
WeRide logo
WeRide
Medium
Data Scientist

Design Ride-Quality Metrics and Diagnose Ratios

You are interviewing for an autonomous-driving metrics team. The team wants to measure rider experience for completed rides using trip-level data such...

Analytics & Experimentation
4
0
81 people solved
Jan 4, 2025
Amazon logo
Amazon
Medium
Data Scientist

Choose Between JOIN, BLEND, and RELATIONSHIP in Tableau

Choose Between JOIN, BLEND, and RELATIONSHIP in Tableau Tableau Data Modeling, Filters, and Visual Design Scenario You are preparing a Tableau dashboa...

Analytics & Experimentation
94
0
258 people solved
Aug 4, 2025
MathWorks logo
MathWorks
Medium
Software Engineer

Calculate cost from orders with SQL

You have two tables: orders(order_id INT, user_id INT, order_date DATE, quantity INT, unit_price DECIMAL, coupon_code VARCHAR) and coupons(code VARCHA...

Data Manipulation (SQL/Python)
1
0
23 people solved
Sep 6, 2025
Capital One logo
Capital One
Hard
Data Scientist

Diagnose and fix a flight-delay modeling setup

Flight Delay Modeling: Binary Target, Features, and Diagnostics You are modeling the probability that a flight arrives with a delay greater than 15 mi...

Statistics & MathRegression & Statistical Modeling
15
0
129 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Estimate fake-account prevalence with capture-recapture

This question evaluates a data scientist's competency in capture–recapture estimation, estimation of population size with incomplete detections, stati...

Statistics & Math
4
0
34 people solved
Oct 13, 2025
Adobe logo
Adobe
Medium
Software Engineer

Persist with an Initiative Others Doubt

Question Tell me about an initiative you continued to advocate for even though others initially doubted it. How did you test your belief, earn support...

Behavioral & Leadership
0
0
13 people solved
Apr 19, 2026
Meta logo
Meta
Medium
Data Scientist

Determine Probability of Video Selection and Impact Evaluation

Determine Probability of Video Selection and Impact Evaluation Video Recommendation Push: Selection Probabilities, Complements, and Design Choices Sce...

Statistics & Math
4
0
41 people solved
Aug 4, 2025
Capital One logo
Capital One
Easy
Data Scientist

Compare average profit across mix scenarios

Burger Profit Mix — Scenario A vs. Scenario B Context: You sell two burger types (Regular and Vegan). In Scenario A, you sell only Regular. In Scenari...

Statistics & Math
4
0
53 people solved
Oct 13, 2025
Morgan Stanley logo
Morgan Stanley
Medium
Data Scientist

How do you escape the circle?

A dog runs continuously along the boundary of a circle of radius 1 at speed 4. You start at an arbitrary point strictly inside the circle and can run ...

Coding & Algorithms
4
0
65 people solved
Dec 8, 2025
ByteDance logo
ByteDance
Hard
Data Scientist Locked

Diagnose a watch-time drop and design experiments

This question evaluates a data scientist's competency in experimental design, causal inference, metric selection and definition, segmentation, and sta...

Analytics & Experimentation
7
0
52 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Implement SGD for linear regression and derive gradients

Prompt You are given a dataset of \(n\) 1D samples \(\{(x_i, y_i)\}_{i=1}^n\), where \(x_i\) and \(y_i\) are real numbers. We want to fit a linear mod...

Machine LearningML CodingRegression & Statistical Modeling
11
0
119 people solved
Dec 15, 2025
Meta logo
Meta
Easy
Data Scientist

Determine Probability of Friend Request Being Fake

Determine Probability of Friend Request Being Fake Scenario You operate a platform where 95% of accounts are real and 5% are fake. Fake accounts send ...

Statistics & MathProbabilityBayesian Statistics
25
1
110 people solved
Aug 4, 2025
Medium
Data Scientist

Compare LLN and CLT with heavy tails

Explain the Law of Large Numbers vs the Central Limit Theorem, including their assumptions and convergence guarantees. Construct a concrete counterexa...

Statistics & Math
8
0
58 people solved
Oct 13, 2025
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