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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
Snapchat logo
Snapchat
Hard
Software Engineer Locked

Check whether an integer is a power of two

This question evaluates proficiency in bit-level reasoning and integer arithmetic, specifically understanding binary representations and the propertie...

Coding & AlgorithmsBit Manipulation
8
0
87 people solved
Jan 2, 2026
Meta logo
Meta
Medium
Data Scientist

Detect earliest collision among moving cars

You are given n vehicles with kinematics parameters. A “collision” means two vehicles occupy the same position at the same time. Assume continuous tim...

Coding & Algorithms
7
0
54 people solved
Dec 4, 2025
NVIDIA logo
NVIDIA
Medium
Software Engineer

Explain a shader compiler pipeline

Explain a shader compiler pipeline Describe the architecture of a shader compiler that ingests GLSL/HLSL and outputs SPIR-V or ISA. Cover lexical anal...

Coding & AlgorithmsParsing & Interpreters
12
0
101 people solved
Aug 9, 2025
Instacart logo
Instacart
Medium
Data Scientist

Summarize your background concisely

Behavioral Prompt: 60–90 Second Career Walkthrough (Data Scientist, HR Screen) Context You are interviewing for a Data Scientist role in a consumer-te...

Behavioral & Leadership
6
0
66 people solved
Oct 13, 2025
Airbnb logo
Airbnb
Medium
Software Engineer Locked

Simulate pouring water onto terrain

This question evaluates a candidate's ability to implement a discrete simulation and perform array manipulation while correctly handling deterministic...

Coding & AlgorithmsSimulation & State Machines
37
4
267 people solved
Feb 11, 2026
Meta logo
Meta
Medium
Data Engineer

Visualize Netflix metric trends

Visualize Netflix metric trends Visualizing a Streaming Metric for Netflix Prompt Choose one streaming metric (for example, Daily Active Viewers or Av...

Analytics & ExperimentationBI & Reporting SystemsCommunication & Stakeholders
7
0
109 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Software Engineer

Find minimum and most frequent number efficiently

Find minimum and most frequent number efficiently Given an unsorted integer array, write functions to: (a) find the minimum value; and (b) find any va...

Coding & Algorithms
4
0
45 people solved
Jul 27, 2025
Illumio logo
Illumio
Medium
Software Engineer Locked

Explain Kafka Reliability and Offset Recovery

This question evaluates understanding of distributed messaging and event-processing concepts, specifically partitioning effects on ordering, paralleli...

Software Engineering Fundamentals
6
0
50 people solved
Oct 20, 2025
Google logo
Google
Medium
Product Manager

Google Cloud BI Strategy: Develop a Dashboarding Product In-House or Acquire One

You are a product manager at Google Cloud. The company wants to offer its customers a data-visualization tool and is weighing two paths: develop one i...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
1
0
10 people solved
Jun 13, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Return the k values in a sorted array closest to a target, with smaller-value ties

You are given a list arr sorted in non-decreasing order, an integer k, and a target value x. Return the k elements of arr that are closest to x, liste...

Coding & AlgorithmsBinary SearchTwo Pointers & Sliding Window
1
0
14 people solved
Apr 3, 2026
Flipkart logo
Flipkart
Medium
Product Manager

Elevator Count Estimate for a 10,000-Occupant, 100-Story Tower

Estimate how many elevators a 100-story building needs if every floor holds 100 occupants. The interviewer gives you nothing else. Choose the missing ...

Product / Decision MakingOperations & CapacityEstimation & Market Sizing
1
0
9 people solved
Jun 21, 2026
Google logo
Google
Medium
Research ScientistSenior+ Locked

Connect Your Research Experience to a Team's Work and Goals

Practice connecting prior research to a team's current work, explaining motivation, and proposing a realistic first contribution. The response framewo...

Behavioral & Leadership
4
0
32 people solved
May 30, 2026
Coinbase logo
Coinbase
Hard
Data Scientist

How to Analyze and Model Behavioral Data Effectively?

Analyze and Model Behavioral Data Effectively You receive a raw event-level behavioral dataset for a product funnel. The interviewer asks you to clean...

Machine LearningSupervised LearningModel Evaluation
108
0
330 people solved
Jul 12, 2025
TikTok logo
TikTok
Easy
Software Engineer Locked

Find the longest palindromic substring

This question evaluates proficiency in string manipulation and algorithmic problem-solving, focusing on palindrome detection and substring handling wi...

Coding & Algorithms
8
0
75 people solved
Feb 12, 2026
Meta logo
Meta
Medium
Software Engineer

Describe conflict where you yielded to others

Describe a time you had a conflict or strong disagreement at work, but ultimately decided to follow someone else’s approach instead of your own. In yo...

Behavioral & LeadershipConflict & Collaboration
12
0
97 people solved
Dec 8, 2025
Google logo
Google
Medium
Product Manager

Design and Test a Personalized Push Notification System for a News App

You are responsible for recommending notifications in a news app that already has an established audience. Walk the interviewer through the product, t...

System DesignProduct Design & ImprovementExperiment Design (A/B Testing)
0
0
11 people solved
Sep 24, 2024
Robinhood logo
Robinhood
Medium
Data Scientist

Diagnose Decline in First Day Funding Rate

Diagnose Decline in First Day Funding Rate Diagnostic Case: First-Day Funding Rate Drop Context You are on a product analytics team monitoring onboard...

Analytics & Experimentation
90
0
308 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Three charts to win executive support for continued YouTube Shorts investment

You want Google's executives to keep investing in growing YouTube Shorts, and your slide deck can hold only three graphs. Which three graphs would you...

Analytics & ExperimentationMetrics & KPIsCommunication & Stakeholders
0
0
7 people solved
Dec 30, 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
510 people solved
Aug 4, 2025
Google logo
Google
Hard
Data Scientist

Predict and act on contract renewal risk

Predicting Enterprise Contract Renewal After a Quality Incident Context A video-conferencing provider experienced a spike in call disconnects. You nee...

Machine LearningSupervised LearningFeature Engineering
14
0
111 people solved
Oct 13, 2025
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