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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
Amazon logo
Amazon
Medium
Product Manager

Amazon PM Behavioral: The Leadership Principle That Resonates Most With You, and Why

You are interviewing for a product manager role at Amazon. The interviewer asks which of Amazon's Leadership Principles you identify with most, and wh...

Behavioral & LeadershipMotivation & Fit
0
0
6 people solved
Oct 29, 2025
Coinbase logo
Coinbase
Hard
Software Engineer

Design real-time exchange data sync system

Design real-time exchange data sync system System Design: Real-Time Multi-Exchange Stock Data Ingestion and Live Web Page Context You are asked to des...

System DesignTrading SystemsData Ingestion & CDC
7
0
139 people solved
Jul 26, 2025
Schonfeld logo
Schonfeld
Medium
Data Scientist

Compute probability last passenger gets own seat

There are 100 passengers boarding a plane with 100 seats, numbered 1 to 100. Passenger i (for 1 ≤ i ≤ 100) has a ticket for seat i. The boarding proce...

Coding & Algorithms
5
0
86 people solved
Nov 1, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Maintain the Median of a Number Stream

Implement a stream data structure that supports integer insertions and exact median queries across up to 200,000 operations. Preserve duplicates and n...

Coding & Algorithms
1
0
22 people solved
May 22, 2026
Instacart logo
Instacart
Medium
Product Manager

Growing Instacart's Business Segment: Acquiring and Retaining Offices, Restaurants and Shops

You are a product manager at Instacart and own growth of the business customers segment. What strategies would you put in place to bring in, and keep,...

Product Design & StrategyGrowth & MonetizationProduct Strategy
0
0
6 people solved
Aug 14, 2025
Google logo
Google
Hard
Data Scientist

Estimate Population Mean and Conversion Rate Accurately

Estimate Population Mean and Conversion Rate Accurately You are asked a series of statistical inference questions covering hypothesis testing, confide...

Statistics & MathHypothesis TestingSampling & Estimation
84
0
341 people solved
Jul 12, 2025
Discord logo
Discord
Hard
Software Engineer

Explain C++ alignment and ABI stability

You are interviewing for a senior C++ / systems role. The interviewer asks two low-level fundamentals questions: 1. C++ memory alignment and padding ...

Software Engineering FundamentalsMemory ManagementProgramming Languages
13
0
104 people solved
Dec 8, 2025
Meta logo
Meta
Medium
Product Manager

Product Sense: A Home-Trading Product for Travelers, From Trust to Matching

Design a product that lets people trade homes with one another while they travel. `hint Every member is both sides In a swap each household is a guest...

Product Design & StrategyProduct SenseTrust & Safety
0
0
6 people solved
Dec 30, 2025
Meta logo
Meta
Medium
Data Scientist

Define and query shop visibility

You are given the following schema. Use only the columns provided; do not introduce new fields or labels. Tables and columns: - shops(shop_id INT, sho...

Data Manipulation (SQL/Python)
1
0
18 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Design experiment with network and novelty effects

This question evaluates a data scientist's competence in experimental design and causal inference under network interference and novelty effects, cove...

Analytics & Experimentation
5
0
44 people solved
Oct 13, 2025
TikTok logo
TikTok
Hard
Software Engineer

Design a reusable React comment component

Design and Implement a Reusable Comment Input-and-Feed Component in React Goal Build a reusable React component that provides a comment input and feed...

System Design
11
0
90 people solved
Sep 6, 2025
ByteDance logo
ByteDance
Medium
Software Engineer

Solve interval merging and histogram area

The coding round included two algorithm problems: 1. Merge overlapping intervals: Given a list of closed intervals [[start1, end1], [start2, end2], .....

Coding & Algorithms
7
0
92 people solved
Feb 18, 2026
Google logo
Google
Medium
Product Manager

Google Maps Feature Design: Helping Groups Plan and Travel Together

How would you improve Google Maps for people traveling as a group? `hint Choose the group first A family in one car, friends converging from different...

Product Design & StrategyProduct Design & Improvement
0
0
8 people solved
Nov 1, 2024
Microsoft logo
Microsoft
Medium
Software Engineer

Compute most popular location with weights

You are given a dataset of voting records for concert locations. Each record includes voter_id, location_text, and an optional numeric weight (default...

Data Manipulation (SQL/Python)
3
0
30 people solved
Sep 6, 2025
TikTok logo
TikTok
Medium
Data Scientist

Calculate valid daily usage with gap constraints

Write Standard SQL to compute, for a given date (use 2025-09-01), each user's total valid usage minutes. Schema and rules: Schema (timestamps are UTC)...

Data Manipulation (SQL/Python)SQLIntervals & Scheduling
15
0
118 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Load Balancing Google.com Front Ends: Server Selection Strategies and Data Structures

You are asked to design a simple load balancer for Google.com: the component that receives incoming user requests and distributes them across a pool o...

System DesignSystem Design FundamentalsData Structure Design
1
0
17 people solved
Sep 1, 2024
Salesforce logo
Salesforce
Medium
Product Manager

Arbitrating Competing Roadmap Requests From Sales and Engineering Teams

A product manager is asked how they decide between the needs of the Sales organization and the needs of Engineering when both are competing for the sa...

Product / Decision MakingPrioritization & TradeoffsCommunication & Stakeholders
1
0
12 people solved
Feb 23, 2025
Coinbase logo
Coinbase
Medium
Data Scientist Locked

Optimize no-penalty test strategy

Choose how many of 50 five-option multiple-choice questions to analyze versus blind-guess to maximize expected score within a 900-second limit. Analys...

Statistics & Math
9
0
68 people solved
Oct 13, 2025
NVIDIA logo
NVIDIA
Medium
Product Manager

Analyzing NVIDIA's Industry Position: Accelerated Computing, CUDA and the AI Platform Shift

In your view, how does NVIDIA influence the direction of the technology industry? `hint Follow the dependencies Think about which companies and produc...

Product Design & StrategyMarket & Competitive AnalysisProduct Strategy
0
0
7 people solved
Dec 10, 2025
Amazon logo
Amazon
Easy
Applied Scientist

List hyperparameter tuning methods

Describe common methods for hyperparameter tuning in machine learning. For each method, explain: - How it works conceptually. - Its advantages and dis...

Machine LearningML Fundamentals
21
0
139 people solved
Dec 8, 2025
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