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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
Point72 logo
Point72
Medium
Quantitative Researcher

Choose Practical Portfolio Constraints

Choose Practical Portfolio Constraints For a single-period statistical-arbitrage optimizer, specify practical constraints on target holdings and trade...

Statistics & MathPortfolio Construction & Alpha Research
3
0
34 people solved
Jun 7, 2025
Google logo
Google
Medium
Product Manager

Market-sizing estimate: number of live apps in a major mobile app store

In a product manager interview at Google, you are asked to estimate how many apps are listed in one of the two major mobile app stores: Apple's App St...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Jun 6, 2025
OPPO logo
OPPO
Medium
Data Engineer

Solve three SQL problems (easy/medium/hard)

Answer the following SQL tasks of increasing difficulty: 1) Aggregation: Given Orders(order_id, customer_id, amount, order_date), return each customer...

Data Manipulation (SQL/Python)
2
0
37 people solved
Aug 14, 2025
Amazon logo
Amazon
Medium
Product Manager

Behavioral: Turning Down a Customer's Demand While Meeting Their Real Need

For a product manager role at Amazon: tell me about a situation where a customer asked for something you considered unreasonable and you pushed back. ...

Behavioral & LeadershipCommunication & StakeholdersConflict & Collaboration
0
0
4 people solved
Jun 23, 2025
Meta logo
Meta
Medium
Data Scientist

Construct a 95% Confidence Interval for Comment Counts

Construct a 95% Confidence Interval for Comment Counts Comment Activity Analysis: Mean CI, Sampling Distribution, and 95th Percentile Context You have...

Statistics & Math
6
0
70 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Product Manager

Design a Product That Helps Households Plan and Reduce Home Upkeep Costs

How would you design a product that helps people with the cost of maintaining their home? Say who the product is for, which problem it solves for them...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
7 people solved
Jan 31, 2025
Meta logo
Meta
Medium
Product Manager

Choose a Sports Audience and Design a Facebook Product for It

Design a new product for Facebook in the sports space. The space is broad, so you decide which part of it and which people to focus on. Explain that c...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
6 people solved
Feb 5, 2026
Flipkart logo
Flipkart
Medium
Product Manager

Return-Driven Losses in Flipkart's Earphone Category: Diagnosis and Turnaround Plan

You are the category manager for earphones at Flipkart. The category gets a large volume of returns, and the cost of those returns has made it unprofi...

Product Design & StrategyBusiness Case AnalysisMetric Diagnostics
0
0
6 people solved
Feb 15, 2024
DoorDash logo
DoorDash
Medium
Software Engineer

Describe a conflict and how you resolved it

Behavioral Questions Answer the following using a clear structure (e.g., STAR: Situation, Task, Action, Result). 1. Tell me about a conflict you had w...

Behavioral & LeadershipConflict & CollaborationFailure & Learning
11
0
89 people solved
Jan 18, 2026
Microsoft logo
Microsoft
Medium
Product Manager

Designing a Product Approach to Cut Seattle Commute Congestion

Seattle has a traffic problem. How would you solve it? Walk through how you would pin down what the problem actually is, which travelers you would foc...

Product Design & StrategyProduct Sense
0
0
6 people solved
Jul 31, 2024
Meta logo
Meta
Medium
Product Manager

Defining the User Need for Auto-Expiring Messages in WhatsApp

WhatsApp is getting ready to launch disappearing messages, a feature that removes messages from a chat automatically once a set period has passed. As ...

Product Design & StrategyProduct SenseUser Research & Discovery
1
0
8 people solved
Nov 10, 2024
Microsoft logo
Microsoft
Medium
Product Manager

Strategic Rationale Behind Microsoft's 2016 LinkedIn Acquisition

Why do you think Microsoft acquired LinkedIn? Explain the strategic logic from Microsoft's side. `hint Start from the buyer Before listing what Linked...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
3 people solved
Jan 22, 2025
Meta logo
Meta
Medium
Data Scientist

Explain Type I vs. Type II Errors in A/B Testing

Explain Type I vs. Type II Errors in A/B Testing A/B Testing Errors and Estimation Under Skewed Metrics Context You are analyzing an A/B experiment fo...

Statistics & Math
22
0
76 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Bringing document-style co-editing to photos: product and sync design

Design a photo editing product that lets several people work on one image together, much as Google Docs lets people work together on a document. `hint...

Product Design & StrategyProduct SenseTechnical Tradeoffs for PMs
0
0
3 people solved
Jan 29, 2025
Datadog logo
Datadog
Medium
Product Manager

Explaining What an Engineering Effort Requires to Colleagues Outside Engineering

Explain how you make a technical project's needs clear to teams without a technical background, and illustrate it with an example from your work. `hin...

Behavioral & LeadershipCommunication & StakeholdersTechnical Tradeoffs for PMs
0
0
5 people solved
Mar 8, 2024
Amazon logo
Amazon
Medium
Business Intelligence Engineer

Compute First Order Proportions by Day and Category

ORDERS +----------+------------+----------+-------------+ | order_id | date | category | customer_id | +----------+------------+----------+-----...

Data Manipulation (SQL/Python)
10
0
55 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Data Scientist

Compute 3-Day Rolling Revenue Averages with Pandas

sales +------------+-----------+-------+---------+ | date | product_id| units | revenue | +------------+-----------+-------+---------+ | 2023-01...

Data Manipulation (SQL/Python)
106
0
507 people solved
Aug 4, 2025
Experian logo
Experian
Medium
Data Scientist

Design Algorithm for Longest Increasing Subsequence Length

Scenario Programming assessment and infrastructure panel Question Design an algorithm to return the length of the Longest Increasing Subsequence of an...

Coding & Algorithms
7
0
67 people solved
Aug 4, 2025
Airtable logo
Airtable
Medium
Software Engineer Locked

Design an async API with idempotency

This question evaluates a candidate's competency in designing asynchronous HTTP APIs with idempotency guarantees, focusing on job lifecycle, durable d...

System DesignDistributed Transactions & IdempotencyAPI Design
23
0
242 people solved
Jan 22, 2026
Meta logo
Meta
Medium
Data Scientist

Measuring and mitigating fake news on Facebook

Measuring and Mitigating Fake News Under Reviewer Constraints Policy teams need an overnight view of fake-news prevalence on the platform, but only a ...

Analytics & Experimentation
76
0
167 people solved
Jul 12, 2025
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