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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
BlackRock logo
BlackRock
Easy
Software Engineer

Design paint editor with undo/redo

Implement a simplified Paint editor that supports drawing on a 2D canvas and reverting changes using undo and redo operations. Canvas You are given a ...

Coding & AlgorithmsData Structure DesignGrids & Matrices
19
0
192 people solved
Dec 8, 2025
Permitflow logo
Permitflow
Medium
Software Engineer Locked

Distinguish Permit Requirement Outcomes

This question evaluates software design and implementation skills, focusing on domain modeling of a tri-state permit status, condition matching via se...

Coding & Algorithms
6
0
65 people solved
Apr 8, 2026
Microsoft logo
Microsoft
Easy
Data Scientist

Compute P(Bag B | red) via Bayes

Bayes' Rule: Posterior Probability of the Chosen Bag Setup - There are three bags containing red (r) and green (g) balls: - Bag A: 4 r, 6 g (10 tota...

Statistics & Math
12
0
86 people solved
Oct 13, 2025
Slack logo
Slack
Medium
Product Manager

Telegram Product Ideas: Up to Three New Features and One Full Launch Plan

Imagine you are the product manager for Telegram, the messaging app, and you have to decide which new features to build. Propose no more than three ne...

Product Design & StrategyProduct Design & ImprovementRequirements & Launch Execution
0
0
7 people solved
Oct 6, 2024
Amazon logo
Amazon
Medium
Data Scientist

Calculate Monthly Revenue from Orders in 2023

orders | id | order_date | customer | |----|------------|----------| | 1 | 2023-01-03 | 101 | | 2 | 2023-02-14 | 102 | | 3 | 2023-02-20 | 101 | ​ o...

Data Manipulation (SQL/Python)
6
0
50 people solved
Aug 4, 2025
Expedia logo
Expedia
Medium
Product Manager

Pandemic-Aware Trip Recommendations for a Major Online Travel Agency

You are a product manager at a large online travel company such as Expedia. Explain how you would build a product that recommends travel to its users....

Product Design & StrategyProduct SenseRecommendation Systems
0
0
7 people solved
Oct 2, 2025
Amazon logo
Amazon
Medium
Product Manager

Behavioral: Steering a Product by a North-Star Metric and Walking Through the Analysis

Describe a time when a metric served as the north star for your product or project, and walk through how you carried out the analysis behind your deci...

Behavioral & LeadershipMetrics & KPIsProject Deep Dive
0
0
12 people solved
Feb 23, 2025
Shopify logo
Shopify
Medium
Product Manager

Adding a Direct-Purchase Shop to a Monthly Subscription Box Business

A company built its business on subscriptions: customers sign up and receive a box of products at home every month. To reach more customers, it plans ...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
8 people solved
Jul 30, 2024
Upstart logo
Upstart
Medium
Data ScientistSenior+

Estimate one-child household probability

You survey 100 children at a school and ask how many children are in their family. The responses are: - 50 children say their family has 1 child. - 20...

Statistics & Math
9
0
79 people solved
Dec 11, 2024
Meta logo
Meta
Hard
Software Engineer

Connect next pointers for each tree level

You are given the root of a binary tree where each node has fields left, right, and next (initially null). For every node, set its next pointer to the...

Coding & Algorithms
3
1
46 people solved
Feb 17, 2026
ByteDance logo
ByteDance
Medium
Product Manager

How do you prioritize requirements

In a TikTok platform Product Manager interview, explain how product requirements are generated and how you prioritize competing work for a platform pr...

Product / Decision MakingPrioritization & TradeoffsMetrics & KPIs
8
0
108 people solved
Oct 6, 2024
Capital One logo
Capital One
Hard
Data Scientist

Demonstrate cross-functional leadership with data and reflection

Cross-Functional Project Under a Hard Deadline (Data Scientist) Context: Share one concrete project where you partnered across at least three function...

Behavioral & Leadership
11
0
90 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Optimize Pricing Strategy to Achieve Profitability and Market Growth

Cloud-Service Startup Pricing and Go-To-Market Case A cloud-service startup is reevaluating its pricing and go-to-market strategy while currently oper...

Behavioral & Leadership
92
0
274 people solved
Jul 12, 2025
Amazon logo
Amazon
Hard
Product Manager

Launching Alexa in a New-Language Market

Product Case: Launch Alexa in a New Language Market You are the Product Manager for Alexa and must launch Alexa in a country where the primary languag...

Product / Decision Making
10
0
65 people solved
Jul 4, 2025
Zillow logo
Zillow
Medium
Product Manager

Responding to Complaints of a Sluggish Mobile App: Diagnosis, Fixes and Prevention

Users of your mobile app are complaining that it is slow. As the product manager, what would you do? Walk through how you would work out what is happe...

Analytics & ExperimentationMetric DiagnosticsMobile Architecture & Performance
0
0
8 people solved
Sep 29, 2025
Netflix logo
Netflix
Medium
Product Manager

Turning around a product you managed that missed its targets (behavioral)

You are interviewing for a product manager role at Netflix, and the interviewer asks for a real example: a product you were responsible for that was f...

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
1
0
10 people solved
Sep 15, 2025
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Fermi Estimate: Filling a 50-Meter Competition Pool With One Garden Hose

Estimate how long it would take to fill an Olympic-size swimming pool using one garden hose. `hint Two numbers decide it The answer is the pool's volu...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
May 21, 2025
Akuna Capital logo
Akuna Capital
Easy
Software Engineer

Design user communication functions

Design user communication functions In-Memory Communication Manager Context Build a simple in-memory component that tracks which users can communicate...

System DesignData Structure Design
10
0
106 people solved
Aug 4, 2025
Uber logo
Uber
Medium
Software Engineer Locked

Find all dictionary words in a grid

This question evaluates skills in grid traversal, string-search and pattern-matching techniques, recursive backtracking, and the efficient use of data...

Coding & AlgorithmsGrids & MatricesBacktracking & Recursion
17
0
155 people solved
Jan 22, 2026
Capital One logo
Capital One
Easy
Data Scientist

Calculate Profitability and Break-Even for Lyft Partnership Campaign

Calculate Profitability and Break-Even for Lyft Partnership Campaign Credit Card Unit Economics and Lyft Co‑Marketing Break‑Even Context You are evalu...

Analytics & Experimentation
8
0
72 people solved
Aug 4, 2025
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