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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
DoorDash logo
DoorDash
Medium
Data Scientist

Diagnose Decline in Successful Orders

You are a Data Scientist at a food-delivery marketplace. In one geographic market, the number of successful orders has declined over the past 4 weeks....

Analytics & ExperimentationMetric DiagnosticsMetrics & KPIs
8
0
126 people solved
Oct 21, 2025
Amazon logo
Amazon
Medium
Software Engineer

Describe times exceeding and missing expectations

Behavioral Prompt: Exceeding and Falling Below Expectations Context You are interviewing for a Software Engineer role in a technical screen focused on...

Behavioral & Leadership
7
0
63 people solved
Sep 6, 2025
Zoom logo
Zoom
Medium
Product Manager

Improve Zoom Meetings: Pick a User Segment, Prioritize a Pain Point, Define Success

Zoom's video meetings are used for work calls, classes and personal chats. Explain how you would improve Zoom: choose the users to focus on, identify ...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
11 people solved
Aug 21, 2025
Voleon logo
Voleon
Hard
Machine Learning EngineerSenior+

Explain a Markov Decision Process

Explain a Markov Decision Process Define a Markov decision process using states, actions, transition probabilities, rewards, and a policy. Explain the...

Machine Learning
4
0
53 people solved
Jul 31, 2025
Meta logo
Meta
Medium
Software Engineer

Solve island and frequency problems

Question LeetCode 200. Number of Islands – given a 2D grid, count the number of connected islands of '1's using DFS/BFS/Union-Find. LeetCode 695. Max ...

Coding & AlgorithmsGrids & MatricesHeaps & Priority Queues
45
0
99 people solved
Jul 29, 2025
Capital One logo
Capital One
Medium
Data Scientist

Evaluate Joint Campaign Strategies for Credit-Card Growth

Evaluate Joint Campaign Strategies for Credit-Card Growth Scenario C1 plans to grow its credit-card business by partnering with merchant RentAHome.com...

Analytics & Experimentation
8
0
103 people solved
Aug 4, 2025
Lyft logo
Lyft
Medium
Product Manager

Lyft Rider Experience: Improving the Pickup Spot the App Suggests by Default

You are a product manager at Lyft, and your team owns the pickup location the app proposes by default when a rider requests a ride. How would you impr...

Product Design & StrategyProduct Design & Improvement
0
0
7 people solved
Jun 30, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Diagnose completed orders drop in Los Angeles

You are a data scientist at DoorDash supporting the consumer pricing team. The number of completed delivery orders in Los Angeles has dropped meaningf...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
20
0
173 people solved
Jan 25, 2026
Point72 logo
Point72
Hard
Data Scientist

Price a coin-doubling game rationally

Coin-Doubling (St. Petersburg) Game: EV, Log-Utility Pricing, Kelly Staking, and House Cap Context and assumptions - Single play: You buy one ticket t...

Statistics & MathProbabilityPuzzles & Brainteasers
9
0
117 people solved
Oct 13, 2025
TikTok logo
TikTok
Hard
Data Scientist

Evaluate Home-Feed Diversity's Impact on User Engagement Metrics

Evaluate Home-Feed Diversity's Impact on User Engagement Metrics You run a personalized home feed where each post is tagged with one or more topics, s...

Analytics & Experimentation
86
0
353 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Solve sampling and streaming tasks

This question evaluates algorithmic problem-solving, data structure design, probabilistic reasoning for weighted random selection, sliding-window stri...

Coding & Algorithms
3
0
49 people solved
Sep 4, 2025
Notion logo
Notion
Medium
Data Scientist Locked

Analyze Document Collaboration CSVs

Analyze Document Collaboration CSVs evaluates SQL or pandas logic, joins, grouping, window functions, null handling, edge cases, and validation in a r...

Data Manipulation (SQL/Python)SQL
10
0
85 people solved
Jul 1, 2025
Citadel logo
Citadel
Medium
Software Engineer Locked

Design a token manager with lazy expiration

This question evaluates time-based data structure design and algorithmic reasoning for managing expiring items, focusing on hashing, timestamp orderin...

Coding & AlgorithmsData Structure DesignArrays & Strings
15
0
131 people solved
Jan 9, 2026
WeRide logo
WeRide
Medium
Data Scientist

Compute window averages and merge intervals

Compute window averages and merge intervals You are given two independent pandas tasks. 1. Centered sliding-window average - Input DataFrame df with c...

Data Manipulation (SQL/Python)Pandas & Python DataIntervals & Scheduling
17
0
133 people solved
Jan 23, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Compute root-to-leaf number sum

This question evaluates understanding of binary tree data structures and the competency to aggregate values along root-to-leaf paths, combining tree t...

Coding & Algorithms
7
0
52 people solved
Jan 2, 2026
Netflix logo
Netflix
Medium
Product Manager

Netflix Strategy: Set and Sequence Its Goals for the Coming Quarters and Years

Suppose you are a product manager at Netflix and leadership asks what the company's goals should be over the short and near term. Recommend a set of g...

Product Design & StrategyProduct StrategyRoadmapping & Planning
1
0
11 people solved
May 9, 2025
American Express logo
American Express
Medium
Product Manager

Contrasting the Product Manager and Product Owner Roles on an Agile Team

Explain how the role of a product manager differs from that of a product owner. `hint Separate the job from the framework Think about where each title...

Behavioral & Leadership
0
0
8 people solved
Feb 1, 2025
Amazon logo
Amazon
Medium
Product Manager

Behavioral: Walk Through Your Hardest Technical Project and What Made It Hard

Walk me through the most technically complex project you have worked on, and explain what made it complex. `hint Name the constraint For each thing th...

Behavioral & LeadershipProject Deep DiveTechnical Tradeoffs for PMs
0
0
9 people solved
Mar 10, 2024
Booking.com logo
Booking.com
Medium
Product Manager

Refining a calendar app's sync-failure user story for backlog readiness

You are the product manager for a calendar app, and your team is focused on improving error handling. This user story is up for refinement: > As a use...

Product / Decision MakingRequirements & Launch Execution
1
0
11 people solved
Jul 11, 2024
Nordstrom logo
Nordstrom
Medium
Software Engineer

Optimize algorithms and validate inputs

Optimize algorithms and validate inputs For a typical medium-difficulty coding task, walk through your approach: enumerate edge cases, justify your in...

Coding & AlgorithmsTesting & Quality
12
0
120 people solved
Jul 17, 2025
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