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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
Snapchat logo
Snapchat
Medium
Product Manager

Fermi estimate: count the windows across Tehran's homes and other buildings

Estimate how many windows there are in Tehran. Explain your structure and assumptions, and land on a single number. `hint Pick a countable unit Find a...

Product / Decision MakingEstimation & Market Sizing
0
0
2 people solved
Nov 8, 2024
LinkedIn logo
LinkedIn
Hard
Data Scientist

Measure Causal Impact of Self-Selected App Redesign

Measure Causal Impact of a Self-Selected App Redesign A mobile app ships a redesigned UI as a new version. Users opt in by upgrading, so a standard ra...

Statistics & Math
76
0
273 people solved
Jul 12, 2025
Meta logo
Meta
Hard
Data Scientist

Demonstrate leadership under ambiguity

Behavioral & Leadership Prompt (Data Scientist) Describe one high-stakes project where priorities changed mid-stream and you had to influence without ...

Behavioral & Leadership
5
0
53 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Find and prioritize revenue streams for Facebook Messenger

You are a product manager at Meta, and you are asked how Facebook Messenger, the company's chat app, should make money. Identify the ways Messenger co...

Product Design & StrategyGrowth & MonetizationPrioritization & Tradeoffs
0
0
5 people solved
Mar 4, 2024
Cruise logo
Cruise
Medium
Product Manager

Cruise: Define a First Flying-Car Release and Speed Up an Engineering Workflow

This prompt comes from a product manager interview at Cruise, a company that develops self-driving cars. It sets two tasks: create a minimum viable pr...

Product Design & StrategyProduct SenseProduct Design & Improvement
0
0
6 people solved
Aug 4, 2024
H
Hot Agent Startup
Medium
Software Engineer

Find High-Intensity Time Periods

Given a list of time-series readings, where each reading is {timestamp, intensity}, and a numeric threshold, return all maximal time periods during wh...

Coding & Algorithms
1
0
19 people solved
Apr 3, 2026
Meta logo
Meta
Medium
Product Manager

Grow Meaningful Engagement on WhatsApp: Segment, Pain Points, Features and Metrics

You are the product manager responsible for engagement on WhatsApp, the messaging app, and your goal is to get people engaging with it more. How would...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
5 people solved
May 7, 2024
Meta logo
Meta
Hard
Data Scientist

Evaluate Factors Before Replacing Recommendation Model

Evaluate Factors Before Replacing a Recommendation Model A large ads platform has built a new recommendation or ranking model and plans to deprecate t...

Machine Learning
64
0
298 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Product Design: A Microgravity Coffee Machine for Space Station Crews

You are a product manager asked to design a coffee maker for crew members living aboard the International Space Station. Explain who the product serve...

Product Design & StrategyProduct SensePrioritization & Tradeoffs
0
0
8 people solved
Nov 15, 2025
Google logo
Google
Medium
Data Scientist

Explain Linear Regression to Non-Technical Stakeholders

Explain Linear Regression to Non-Technical Stakeholders You are explaining core machine-learning concepts to non-technical stakeholders during a proje...

Machine LearningRegression & Statistical ModelingModel Evaluation
23
0
120 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Google Photos monetization strategy: sizing the levers for a 3x revenue target

You are the product manager for Google Photos, and the goal is for the product to bring in three times the revenue it does today. How would you get th...

Product Design & StrategyGrowth & MonetizationEstimation & Market Sizing
0
0
4 people solved
Jun 6, 2024
Meta logo
Meta
Hard
Data Scientist

Design A/B test and success metrics for new feature

Instagram Collections 2.0 — Define Success, Experiment Design, and Measurement Context: You are proposing a new Instagram feature, Shareable Collectio...

Analytics & Experimentation
9
0
68 people solved
Oct 13, 2025
Shopify logo
Shopify
Medium
Data Scientist

Implement Cosine Similarity Function for String Vectors

Scenario Technical phone screen in Python; assess ability to implement similarity metric. Question Implement a Python function that computes the cosin...

Coding & AlgorithmsNatural Language ProcessingArrays & Strings
13
0
145 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Getting a Launch Back on Track When a Partner Team You Depend On Falls Behind

Your feature cannot ship until a cross-functional partner team delivers its part, and that team is moving slower than expected. What do you do? `hint ...

Behavioral & LeadershipOwnership & ExecutionCommunication & Stakeholders
0
0
3 people solved
Mar 12, 2026
Google logo
Google
Medium
Product Manager

Sustaining engineering morale and delivery quality from the product manager seat

You are a product manager working with a team of software engineers on a product. How would you keep those engineers motivated over time, and keep the...

Behavioral & LeadershipLeadership & InfluenceMentoring & Team Growth
0
0
6 people solved
Nov 29, 2023
SoFi logo
SoFi
Medium
Product Manager

Building the recommender for curated insurance bundles on a voluntary benefits platform

You are a product manager at an insurtech company. The company wants to meet the insurance needs of a corporate client's employees by launching a volu...

Product Design & StrategyProduct SenseAI Product Management
0
0
5 people solved
Mar 29, 2024
Meta logo
Meta
Hard
Data Scientist Locked

Design and validate an ads feed experiment

This question evaluates a data scientist's competency in experiment design, causal inference, and applied statistical analysis for product experimenta...

Analytics & ExperimentationExperiment Design (A/B Testing)Hypothesis Testing
9
0
81 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Instagram activity tab: north-star metric and guardrails for the notifications screen

You are the product manager responsible for Instagram's activity feed. Take it to be the screen that lists recent interactions with a user's account, ...

Analytics & ExperimentationMetrics & KPIs
0
0
5 people solved
Jun 2, 2024
DoorDash logo
DoorDash
Medium
Product Manager

Revenue Growth Plan for Target Across Stores, Digital and New Revenue Streams

You are a senior leader at Target, the US retailer. How would you grow Target's revenue? `hint Split revenue before brainstorming Decide whether the b...

Product Design & StrategyGrowth & MonetizationMarket & Competitive Analysis
0
0
4 people solved
Apr 29, 2025
Flipkart logo
Flipkart
Medium
Product Manager

Design first-visit web onboarding for a remote-worker virtual coffee break app

GrabChai is a product for people who work remotely. It lets them take a coffee, tea or chai break together and hang out online. The company wants peop...

Product Design & StrategyProduct Design & ImprovementGrowth & Monetization
0
0
4 people solved
May 16, 2024
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