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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
Motive logo
Motive
Medium
Software Engineer

Discuss a recent project and impact

Behavioral & Leadership: End-to-End Project Walkthrough You are in an onsite software engineering interview. The interviewer asks you to walk through ...

Behavioral & Leadership
2
0
41 people solved
Sep 6, 2025
Sealth logo
Sealth
Medium
Software Engineer Locked

Simulate Threshold Grid Infection

This question evaluates understanding of discrete grid-based simulations and local state-transition rules, focusing on modeling infection spread, neig...

Coding & Algorithms
6
0
45 people solved
Mar 13, 2026
Meta logo
Meta
Hard
Data Scientist

Evaluate the Health of Facebook Groups

Group Health Metrics and Threaded Comments Experiment You are a Data Scientist working on a platform with Groups ranging from small hobby clubs to ver...

Analytics & Experimentation
56
0
84 people solved
Jul 12, 2025
Meta logo
Meta
Easy
Data Scientist

Design measurement to detect fake accounts

Context You work on a social platform. The only product surface you can rely on is friend requests (sending/receiving/accepting/declining). Assume you...

Analytics & ExperimentationMetrics & KPIs
11
1
182 people solved
Nov 16, 2025
Google logo
Google
Hard
Product Manager

Comprehensive Product Improvement Drill

Product Case Prompt: Comprehensive Product Improvement Drill Use Spotify, a music and podcast streaming app, as the reference product. Assume it serve...

Product / Decision Making
15
0
110 people solved
Jul 4, 2025
Capital One logo
Capital One
Medium
Data Scientist

Implement minimal-cost overtime/contractor allocation

You must cover H extra engineering hours this week at minimum cost using employee overtime and optional contractors. Each employee i has a maximum ove...

Coding & Algorithms
10
0
74 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Data Scientist

Create Country-Level Spend Report Using Pandas

users +---------+---------+ | user_id | country | +---------+---------+ | 1 | US | | 2 | CA | | 3 | US | +---------+-...

Data Manipulation (SQL/Python)
86
0
231 people solved
Aug 4, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Maximize profit from non-overlapping jobs

You are given up to N = 200,000 jobs; each job i has a start time s_i, end time e_i (s_i < e_i), and reward w_i. Select a subset of non-overlapping jo...

Coding & AlgorithmsDynamic ProgrammingBinary Search
17
0
240 people solved
Jul 16, 2025
Google logo
Google
Medium
Product Manager

Estimating What It Costs to Re-capture Google Maps Street View for New York

Imagine that one day every Street View image Google Maps holds for New York is lost. As the product manager, estimate what it would cost to rebuild th...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Feb 28, 2025
Google logo
Google
Medium
Product Manager

Plain-Language Explanation of How the Internet Works for a Non-Technical Listener

In a product manager interview, you are asked how you would explain the internet to someone who knows very little about technology. Give the explanati...

Behavioral & LeadershipCommunication & StakeholdersNetworking
0
0
4 people solved
May 13, 2026
LinkedIn logo
LinkedIn
Easy
Software Engineer Locked

Design a Top-K Ranking Service

This question evaluates a candidate's ability to design scalable, real-time Top-K ranking services, testing competencies in distributed systems, strea...

System DesignBatch & Stream ProcessingHeaps & Priority Queues
10
0
147 people solved
Mar 10, 2026
Meta logo
Meta
Medium
Data Scientist

Compare Instagram vs. Facebook using causal experiments

Compare Instagram and Facebook for consumer time and engagement: a) Define a single-objective OEC that captures healthy cross-app ecosystem value with...

Analytics & Experimentation
5
0
66 people solved
Oct 13, 2025
Uber logo
Uber
Hard
Data Scientist Locked

Design and Evaluate an Experiment on Surge

This question evaluates experiment design, causal inference, power analysis, and implementation skills relevant to pricing and supply experiments in a...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
10
0
88 people solved
Oct 13, 2025
Anchorage Digital logo
Anchorage Digital
Medium
Software Engineer Locked

Design a dynamic leaderboard with rank queries

This question evaluates proficiency with dynamic data structures and order-statistics, including maintaining sorted order under updates, deterministic...

Coding & AlgorithmsData Structure Design
23
0
211 people solved
Jan 6, 2026
Datadog logo
Datadog
Medium
Product Manager

Ranking Content for Instagram Users: Objective, Signals and Evaluation

You are a product manager working with the machine learning team at Instagram. Design a model that ranks content for Instagram users: what it should o...

Machine LearningAI Product ManagementRanking Models
0
0
6 people solved
Aug 30, 2025
Amazon logo
Amazon
Medium
Product Manager

Amazon Fresh Quick-Commerce Entry: Go/No-Go on 10-Minute Delivery for Indian Shoppers

Amazon is weighing whether Amazon Fresh should launch a 10-minute grocery delivery service in India and compete in the country's quick-commerce market...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
7 people solved
May 24, 2026
ByteDance logo
ByteDance
Medium
Machine Learning Engineer

Compute Sentence Similarity

Given two text inputs, design and implement a method to compute their semantic similarity. You may use either of the following approaches: 1. Encode e...

Machine Learning
4
0
55 people solved
Jan 7, 2026
Roblox logo
Roblox
Medium
Product Manager

Product launch story: owning scope, rollout and results end to end

Tell me about a product you launched. What part did you play, how did you get it to launch, and what happened once it was live? `hint Anchor on your d...

Behavioral & LeadershipRequirements & Launch ExecutionOwnership & Execution
1
0
14 people solved
Jul 10, 2024
Amazon logo
Amazon
Medium
Software EngineerIntern Locked

Implement nested object path lookup

This question evaluates parsing and traversal of nested maps and arrays, robust error handling for missing keys and out-of-bounds indices, and reasoni...

Coding & Algorithms
6
0
61 people solved
Oct 31, 2025
TikTok logo
TikTok
Medium
Software Engineer

Describe a project you are proud of

Prompt Spend ~30 minutes walking the interviewer through a software project you are proud of. What to cover - Problem & context: What was the user/bus...

Behavioral & Leadership
6
0
91 people solved
Jan 18, 2026
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