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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.0k
Companies
570
Updated
10.05.2026
12.0k Questions 570 Companies10.05.2026
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
Medium
Data Scientist

Find and fix metric drops systematically

Investigating a YoY Drop in Weekly Average Likes per User Context You are a Data Scientist evaluating a social app where the weekly average likes per ...

Analytics & Experimentation
3
0
50 people solved
Oct 13, 2025
Akuna Capital logo
Akuna Capital
Medium
Data Engineer Locked

Compute Graph Spread and Portfolio Trades

This question evaluates graph traversal and data-manipulation competencies, combining connected-component analysis on undirected graphs with map-based...

Coding & Algorithms
2
0
19 people solved
May 11, 2026
Meta logo
Meta
Medium
Data Scientist

Compute CTR overall and by campaign type

Write SQL to compute: (Q1) overall click-through rate (CTR = clicks/impressions) in the last week; (Q2) CTR by campaign_type in the last week. Assume ...

Data Manipulation (SQL/Python)
3
0
18 people solved
Oct 13, 2025
Electronic Arts logo
Electronic Arts
Medium
Product Manager

Answer EA PM behavioral prompts

For a Product Manager interview with EA's Plants vs. Zombies studio, prepare concise but compelling answers to first-round HR and written behavioral q...

Behavioral & LeadershipMotivation & FitProject Deep Dive
10
0
91 people solved
Jan 5, 2025
NVIDIA logo
NVIDIA
Hard
Software Engineer Locked

Design a URL shortening service

This question evaluates systems design skills including scalable architecture, data modeling, low-latency routing, availability, and operational conce...

System DesignSystem Design FundamentalsCaching
8
0
124 people solved
Feb 11, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Schedule dependent services with layered startup

You are given N services and dependency pairs (u -> v) meaning u must start before v. 1) Produce a valid startup order if one exists; otherwise detect...

Coding & AlgorithmsGraphsJob Scheduling & Workflows
10
0
94 people solved
Sep 6, 2025
Airtable logo
Airtable
Medium
Software Engineer Locked

Implement undo/redo with two stacks

This question evaluates a candidate's ability to design and implement efficient mutable state management and history tracking using data structures (s...

Coding & AlgorithmsData Structure DesignStacks & Queues
13
0
249 people solved
Jan 22, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Discuss activities, role, and project deep dive

Discuss activities, role, and project deep dive Behavioral Onsite Prompt — Role Walkthrough, Project Deep Dive, and Professional Growth Context: You a...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
6
0
112 people solved
Aug 7, 2025
Capital One logo
Capital One
Medium
Data Scientist

Impute, join, and upsert using SQL and Python

Write both SQL and Python (pandas) to complete the following data-manipulation tasks. Assume today is 2025-09-01 for any time filters. Schema: custome...

Data Manipulation (SQL/Python)
2
0
21 people solved
Oct 13, 2025
PayPal logo
PayPal
Easy
Data Scientist

Compute variance of a list in Python

Task Given a Python list of numbers (ints/floats), write code to compute its variance. Requirements - Input: nums: list[float] (length \(n\ge 1\)) - C...

Coding & AlgorithmsProbability
11
0
78 people solved
Feb 15, 2026
Snowflake logo
Snowflake
Easy
Software Engineer Locked

Schedule prerequisite classes with retakes

This question evaluates competency in graph algorithms, dependency resolution, stateful scheduling, and robust error handling within the Coding & Algo...

Coding & AlgorithmsGraphs
16
0
133 people solved
Mar 1, 2026
Meta logo
Meta
Hard
Data Scientist

Size opportunity and prioritize experiments

New E‑commerce Product Line: Pre‑Investment Quantification and Test Plan You are evaluating whether to invest engineering and operational resources to...

Analytics & Experimentation
8
0
57 people solved
Oct 13, 2025
Medium
Software Engineer

Discuss AI Safety and Ethics

In an initial recruiter screen for an AI-focused company, you are asked to briefly introduce your background, explain whether you reviewed the company...

Behavioral & Leadership
4
0
35 people solved
Jan 29, 2026
Disney logo
Disney
Hard
Data ScientistSenior+

Demonstrate influential product leadership under ambiguity

Behavioral & Leadership: Influencing Without Authority Under Tight Deadlines Scenario You are a Senior Data Analyst supporting a streaming product. Fo...

Behavioral & Leadership
8
0
63 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Assess Group Video Chat Demand

This question evaluates a data scientist's product analytics competencies including causal inference, experiment and questionnaire design, proxy metri...

Analytics & Experimentation
3
0
35 people solved
Mar 1, 2026
Snowflake logo
Snowflake
Hard
Software Engineer Locked

Count a Distributed Tree with Nonblocking Messages

Design a nonblocking message protocol that lets a distributed tree compute its total node count. The discussion explores asynchronous state machines, ...

Software Engineering Fundamentals
3
0
29 people solved
May 24, 2026
Meta logo
Meta
Hard
Software Engineer

Design an e-commerce price tracking service

Design a backend system for an e-commerce price-tracking service. Users can track products from a large online retailer, view historical prices, and r...

System Design
2
0
38 people solved
Mar 23, 2025
Coinbase logo
Coinbase
Medium
Data Scientist

Estimate QR Code Scan Rate for Super Bowl Ad

Estimate QR Code Scan Rate for Super Bowl Ad Forecasting a QR-Code Super Bowl Ad Funnel Context You are advising a brand running a QR-code Super Bowl ...

Analytics & Experimentation
2
0
47 people solved
Aug 4, 2025
Capital One logo
Capital One
Hard
Data Scientist

Evaluate merchant partnership for high-value customers

Partnership evaluation to acquire high‑LTV cardholders: Home‑sharing (RH) vs Big‑box retailer Context C1, a credit‑card issuer, is considering marketi...

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

Design an A/B test for promo-targeting models

Experiment Design: Compare Two Ranking Models (M1 vs M0) for $5 Promotions Context You have two models, M0 (current) and M1 (new), that rank users for...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
8
0
112 people solved
Oct 13, 2025
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