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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
Meta logo
Meta
Hard
Data Scientist

Choose group-call size cap via experiment

Decide the Maximum Participants per Group Call: Experiment Plan Context: You need to choose a default cap for group calls (maximum concurrent particip...

Analytics & Experimentation
2
0
47 people solved
Oct 13, 2025
Medium
Data Scientist

Write SQL to analyze response accuracy and speed

You are given response-level data for an online assessment with sections verbal/design/analytics and verbal subtypes grammar/vocab/tense/other. Using ...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
3
0
61 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

PM Behavioral: Recognizing a Problem Needed a Counterintuitive Fix and Proposing It

You are asked to describe a problem for which you proposed a counterintuitive solution, and to explain how you recognized that the problem called for ...

Behavioral & LeadershipAmbiguity & Decision MakingLeadership & Influence
0
0
4 people solved
May 10, 2024
Jobizo logo
Jobizo
Medium
Product Manager

Designing an Airport Passenger App and Its Revenue Model

Design a mobile app for an airport that earns money. Decide whom it serves and what it does for them, explain how it generates revenue, and say how yo...

Product Design & StrategyProduct SenseGrowth & Monetization
0
0
4 people solved
Apr 13, 2025
Meta logo
Meta
Hard
Data Scientist

Replace legacy ads model safely

Facebook Ads Ranking Replacement: M0 to M1 You are asked to replace a legacy ads ranking model (M0) with a new model (M1) in a large-scale feed ads sy...

Machine Learning
9
0
65 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Root-Cause a 10% Decline in Messenger Daily Active Users

You are a product manager at Meta who owns Messenger. One morning you check the dashboards and see that Messenger's daily active users (DAU) are down ...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
0
0
6 people solved
Mar 10, 2025
Google logo
Google
Medium
Product Manager

Prioritizing ten Google Cloud customer customization requests when only one can be built

You are a product manager for a Google Cloud product. Ten customers have each asked your team to customize the product to fit their needs, but your en...

Product / Decision MakingPrioritization & TradeoffsCommunication & Stakeholders
0
0
7 people solved
Dec 2, 2025
Meta logo
Meta
Medium
Product Manager

Design a Meta Feature That Deepens Quality Time Between Romantic Partners

Imagine you are a product manager at Meta. How would you help couples spend time together that genuinely feels meaningful to them? Decide which couple...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
6 people solved
Apr 4, 2025
Google logo
Google
Medium
Product Manager

Internal Wellness App for Google Staff: Fitness Habits, Health Tracking and Privacy

Google wants to give its own employees an app that helps them keep fit and keep track of their health. As the product manager, design it. Cover the go...

Product Design & StrategyProduct SensePrivacy & Compliance
0
0
5 people solved
Sep 17, 2024
Meta logo
Meta
Medium
Data Scientist

Design an A/B test for a new shop-ads algorithm

A new ranking/promotion algorithm will change which shop ads are shown (and their order). You are asked: “How do we know if this new algo is good?” De...

Analytics & ExperimentationExperiment Design (A/B Testing)Metric Diagnostics
13
0
91 people solved
Oct 14, 2025
Meta logo
Meta
Medium
Product Manager

Improving Meta's Self-Serve Ads Manager: Segment, Pain Points and Metrics

You are a product manager working on Meta's Ads Manager, the self-serve tool businesses use to create, run and measure advertising campaigns on Facebo...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
4 people solved
Feb 15, 2025
Thumbtack logo
Thumbtack
Medium
Data Scientist

Compute weighted response rates by job category

You are given a CSV with one row per job posting and the following columns: job_id, job_category, invitations_sent (integer >= 0), provider_responses ...

Data Manipulation (SQL/Python)
3
0
42 people solved
Oct 13, 2025
CVS Health logo
CVS Health
Hard
Data Scientist

Diagnose a failing campaign

Vaccination-Lift Experiment Triage Plan Context: You ran a randomized CRM experiment (e.g., email/SMS/push) to increase vaccination uptake. The overal...

Analytics & Experimentation
6
0
74 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Product Manager

Behavioral: a story where a technical problem and a people problem collided

Describe a time when you had to deal with a technical problem and a people problem at the same moment. How did you handle both, and what was the outco...

Behavioral & LeadershipConflict & Collaboration
0
0
4 people solved
Mar 18, 2024
Meta logo
Meta
Hard
Data Scientist

Design an A/B test for pinned-unread feature

Experiment Design: Evaluating a Pinned-Unread Chat Feature Context You are evaluating a new messaging feature that pins chats with unread messages to ...

Analytics & Experimentation
7
0
50 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Hard
Data Scientist Locked

Compute power and interpret guardrails

This question evaluates competency in experimental design and applied statistics for cluster-randomized A/B tests, covering cluster-robust inference, ...

Statistics & MathExperiment Analysis & ReadoutRegression & Statistical Modeling
4
0
89 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Sizing Daily Passenger Volume Through One Airport's Security Checkpoints

Pick an airport and estimate how many people pass through its security screening on a typical day. State each assumption, show your arithmetic, and ex...

Product / Decision MakingEstimation & Market Sizing
0
0
3 people solved
Nov 24, 2025
Uber logo
Uber
Medium
Product Manager

Set Monthly Fees for a Two-Level Uber Membership from Rider Savings and Margins

Uber is adding a subscription with two tiers, Tier 1 and Tier 2. How would you set the price of each tier? Back the prices you propose with estimates,...

Product / Decision MakingGrowth & MonetizationBusiness Case Analysis
0
0
4 people solved
Jul 24, 2024
Amazon logo
Amazon
Medium
Product Manager

Product to Relieve Amazon's Logistics Team After a Year of Rising Order Volume

Amazon's order volume has been rising over the past year, and its logistics team is now running into problems keeping up. You are the product manager ...

Product Design & StrategyProduct SenseOperations & Capacity
0
0
6 people solved
Feb 10, 2025
Meta logo
Meta
Medium
Product Manager

Teen-First Facebook Experience: Choosing a Segment, MVP and Safety Guardrails

You are a product manager at Facebook. Design a new product for teenagers. `hint Find where Facebook has an edge Teens already have apps they love for...

Product Design & StrategyProduct SenseTrust & Safety
0
0
3 people solved
Nov 16, 2025
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