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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
Uber logo
Uber
Medium
Software Engineer Locked

Choose root to minimize edge reversals

This question evaluates understanding of directed versus undirected graph representations, tree rooting, and optimization of edge orientations, testin...

Coding & AlgorithmsTreesDynamic Programming
7
0
125 people solved
Feb 11, 2026
Meta logo
Meta
Medium
Product Manager

Founder Product Sense: Pick a Housing-Search Wedge and Define the First Product

You are the founder and CEO of a new startup, and you want to build a product that helps people find a home to live in. Describe how you would go abou...

Product Design & StrategyProduct SenseGrowth & Monetization
1
0
9 people solved
Jan 27, 2026
Instacart logo
Instacart
Medium
Software Engineer

Pivot data without date libraries

Transform a tall dataset into a wide, pivoted view without using any date/time libraries. Input: a list of records (date, store_id, metric, value) whe...

Data Manipulation (SQL/Python)
2
0
31 people solved
Jul 31, 2025
Apple logo
Apple
Medium
Product Manager

Premium Tablet Scorecard: North-Star Metric and Guardrails for Apple's iPad Pro

Apple sells the iPad Pro, its top-of-the-range tablet. As the product manager responsible for it, how would you define and measure whether the iPad Pr...

Analytics & ExperimentationMetrics & KPIs
0
0
6 people solved
Oct 17, 2024
Capital One logo
Capital One
Medium
Data Scientist

Deliver self-intro and justify move and company fit

Behavioral Prompt: Self‑Introduction, Why Capital One, and Job‑Change Rationale Context You are interviewing for a Data Scientist role during an HR sc...

Behavioral & Leadership
6
0
76 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Turning Time Travel into a Product: Choosing First Users, Rules and Safeguards

Design a time machine. Approach it as a product design question: decide who it is for, what it lets them do, and how you would launch it. `hint Set th...

Product Design & StrategyProduct SenseTrust & Safety
0
0
4 people solved
Apr 23, 2026
Meta logo
Meta
Medium
Data Scientist

Investigate Causes of Decline in Facebook Group Comments

Investigate Causes of Decline in Facebook Group Comments Scenario A sharp decline in Comments per Post (CPP) was observed in Facebook Groups last week...

Analytics & Experimentation
4
0
51 people solved
Aug 4, 2025
Amazon logo
Amazon
Hard
Software Engineer Locked

Find Longest Activatable Server Streak

This question evaluates array algorithm skills, specifically recognition of sliding-window or two-pointer techniques and reasoning about time and spac...

Coding & Algorithms
5
0
60 people solved
Apr 15, 2026
Uber logo
Uber
Hard
Data Scientist

Optimize Surge Notifications for Rideshare Drivers

Optimize Surge Notifications for Rideshare Drivers Scenario A rideshare marketplace experiences airport demand spikes. When demand exceeds supply, the...

Machine LearningRanking ModelsGeo & Delivery Systems
99
0
292 people solved
Aug 4, 2025
Dropbox logo
Dropbox
Medium
Product Manager

Dropbox Competitive Analysis: Rivals, Substitutes and Strategic Response

Dropbox offers cloud file storage, syncing and sharing to individual users and to businesses. You are a product manager asked to assess the competitiv...

Product Design & StrategyMarket & Competitive AnalysisProduct Strategy
1
0
10 people solved
Dec 4, 2024
Netflix logo
Netflix
Hard
Data Scientist

Design A/B Test for Streaming Feature Network Effects

Design A/B Test for Streaming Feature Network Effects A/B Test Design With Potential Social-Network Spillovers (Streaming Platform) Context You are de...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
17
0
144 people solved
Aug 4, 2025
Transunion logo
Transunion
Medium
Data Scientist Locked

Explain Feature, Model, and Validation Choices

This question evaluates a candidate's competency in end-to-end machine learning project execution, including data processing workflows, feature creati...

Machine Learning
6
0
84 people solved
Apr 11, 2026
Oracle logo
Oracle
Medium
Data ScientistIntern Locked

Count Enclosed Islands in a Grid

This question evaluates grid traversal and graph concepts such as connected-component detection, boundary-condition reasoning, and algorithmic time/sp...

Coding & Algorithms
5
0
44 people solved
Jan 3, 2026
DoorDash logo
DoorDash
Easy
Software Engineer Locked

Compute Nearest Destination Distances

This question evaluates graph and grid traversal concepts, specifically multi-source shortest-path computation on a grid and handling special-cell con...

Coding & Algorithms
8
0
97 people solved
Apr 11, 2026
ByteDance logo
ByteDance
Medium
Data Scientist

How would you choose a classification threshold?

You trained a binary classifier that outputs a probability score p(y=1|x). You must choose a decision threshold t to convert probabilities into class ...

Machine Learning
10
0
77 people solved
Nov 12, 2025
DRW logo
DRW
Hard
Machine Learning Engineer

Build an imbalanced classification pipeline with sklearn

Build an imbalanced classification pipeline with sklearn Take-home: End-to-end Imbalanced Binary Classification Pipeline (scikit-learn + imbalanced-le...

Machine Learning
12
0
86 people solved
Jul 31, 2025
Point72 logo
Point72
Medium
Quantitative Researcher

Choose and Explain a Classical Hypothesis Test

Choose and Explain a Classical Hypothesis Test Explain null and alternative hypotheses, significance level, p-value, Type I error, and Type II error. ...

Statistics & Math
6
0
57 people solved
Dec 14, 2025
Uber logo
Uber
Medium
Machine Learning Engineer

Count connected delivery zones

Given an m x n grid representing a service area, each cell is either 'Z' (deliverable zone) or '#' (blocked). Two 'Z' cells belong to the same zone if...

Coding & AlgorithmsGrids & Matrices
8
0
122 people solved
Sep 6, 2025
Uber logo
Uber
Medium
Product Manager

Handling an Engineering Manager's New Feature Push When You Have Zero Spare Capacity

You are a product manager. Your engineering manager wants the team to work on a new feature, but you have no bandwidth at all to take it on. How would...

Behavioral & LeadershipPrioritization & TradeoffsConflict & Collaboration
1
0
10 people solved
Jan 18, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Solve string match and DashMart BFS

Question Implement a string-matching function that returns the first index of a pattern in a text (akin to LeetCode 28 Implement strStr()). 2) “Dash M...

Coding & Algorithms
13
0
126 people solved
Aug 4, 2025
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