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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
Product Manager

Food Tech Market Sizing: Estimating TAM, SAM and a Product's Reachable Customers

Walk through how you would estimate three nested market sizes for the food tech industry: - Total available market (TAM): all the spending the industr...

Product / Decision MakingEstimation & Market Sizing
0
0
7 people solved
Sep 21, 2024
MathWorks logo
MathWorks
Medium
Software Engineer

Compare Core Networking and Language Runtime Concepts

Explain the following core software-engineering concepts as if answering a technical screen. Use concrete examples, distinguish guarantees from common...

Software Engineering Fundamentals
3
0
56 people solved
Feb 3, 2026
DoorDash logo
DoorDash
Hard
Data Scientist

Assess Success Criteria for Bike-Courier Delivery Launch

Assessing a Bike-Courier Delivery Launch DoorDash plans to launch a bike-courier delivery option and wants to assess whether, where, and how to roll i...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
84
0
206 people solved
Jul 12, 2025
TikTok logo
TikTok
Hard
Software Engineer Locked

Find k-th smallest subarray sum

This question evaluates algorithmic problem-solving skills in array processing, specifically understanding of subarray sum properties, selection and r...

Coding & Algorithms
9
0
72 people solved
Jan 22, 2026
Amazon logo
Amazon
Medium
Software Engineer

Describe Linux and SQL experience

You are being assessed on basic tooling skills as an engineer. Answer: 1. Linux/Unix commands: list commands you are comfortable with and briefly expl...

Software Engineering Fundamentals
10
0
75 people solved
May 28, 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
Visa logo
Visa
Medium
Product Manager

Agile Fundamentals for Product Managers: Core Values, Principles and Team Practices

You are interviewing for a product manager role. Explain what the Agile approach to building software is and walk through its key principles. `hint Se...

Software Engineering FundamentalsRoadmapping & PlanningRequirements & Launch Execution
0
0
10 people solved
Mar 31, 2025
Apple logo
Apple
Medium
Product Manager

Product Sense: Choosing a Segment and Designing an Apple Watch Improvement

You are a product manager on Apple Watch. How would you make it better? `hint Choose before you build The watch serves very different people, from ath...

Product Design & StrategyProduct Design & ImprovementProduct Sense
0
0
6 people solved
Dec 11, 2024
Meta logo
Meta
Medium
Data Scientist

Analyze User Engagement and Spammer Read-Rate in SQL

messages +------------+------------+-------------+--------------+-----------+ | sender_id | receiver_id| message_id | sent_date | read_date | +--...

Data Manipulation (SQL/Python)
3
0
41 people solved
Aug 4, 2025
Intuit logo
Intuit
Medium
Product Manager

PM Behavioral: Your Working Relationship With Engineering and Design Partners

How do you work with the engineers and designers on your team? Explain how you collaborate with them, and support it with a real example. `hint Anchor...

Behavioral & LeadershipConflict & CollaborationRequirements & Launch Execution
0
0
9 people solved
Feb 8, 2024
Google logo
Google
Hard
Machine Learning Engineer

Describe conflict and failure using STAR framework

You are in a behavioral interview for a software/ML engineering role. The interviewer asks you to: 1. Describe a time you faced a significant conflict...

Behavioral & LeadershipConflict & CollaborationFailure & Learning
17
0
209 people solved
Dec 8, 2025
Blink logo
Blink
Hard
Software Engineer Locked

Design a Support Ticket Processing System

Prepare for a Blink system design interview about design a support ticket processing system. This question focuses on requirements, architecture, trad...

System Design
3
0
26 people solved
Jun 28, 2026
Google logo
Google
Medium
Software Engineer Locked

Assign meetings to rooms with delays

This question evaluates skill in scheduling algorithms, priority queue and heap usage, greedy decision-making, and time-based event simulation for man...

Coding & AlgorithmsIntervals & SchedulingHeaps & Priority Queues
17
1
212 people solved
Jan 6, 2026
Meta logo
Meta
Medium
Software Engineer

Validate word abbreviation and reconcile two abbreviations

Validate word abbreviation and reconcile two abbreviations Implement a function isValidAbbreviation(word: string, abbr: string) that returns true if a...

Coding & Algorithms
6
0
71 people solved
Jul 15, 2025
Pinterest logo
Pinterest
Medium
Data Scientist

Develop Auto-Complete System for Dish Suggestions

Scenario Search-as-you-type needs dish suggestions with popularity scores. Question Build an auto-complete system using the given (string, score) tupl...

Coding & Algorithms
7
0
50 people solved
Jul 12, 2025
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Triaging a feature request from a customer or an internal partner

Someone hands you a requirement, either an internal stakeholder or a customer. What do you do with it, from the moment it arrives to a decision? `hint...

Behavioral & LeadershipPrioritization & TradeoffsCommunication & Stakeholders
0
0
7 people solved
Oct 4, 2024
Google logo
Google
Hard
Product Manager

Project Leadership Deep Dive

Behavioral PM Onsite: End-to-End Project Leadership Deep Dive Choose one high-impact project you are proud of and walk through it end to end. Then add...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
17
0
132 people solved
Jul 4, 2025
Uber logo
Uber
Hard
Data Scientist Locked

Choose between A/B and switchback for spillovers

This question evaluates experimental-design and causal-inference competencies, specifically handling interference and spillovers, defining experimenta...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
11
0
100 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Product Manager

Uber's Next Growth Bet: Picking and Sizing a New Market to Enter

You are a product manager at Uber. Which market should the company enter next? Give one recommendation and defend it against the alternatives. `hint S...

Product Design & StrategyProduct StrategyEstimation & Market Sizing
0
0
4 people solved
Oct 21, 2025
Meta logo
Meta
Hard
Data Scientist

Identify Features for Fake News Detection on Facebook

Identify Features for Fake News Detection on Facebook Design a Machine-Learning System to Flag Fake News on Facebook Scenario An increase in fake news...

Machine Learning
35
0
124 people solved
Aug 4, 2025
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