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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
Uber logo
Uber
Hard
Data Scientist

Analyze T2 Results and Recommend Launch Strategy

Analyze T2 Results and Recommend Launch Strategy A/B Test Interpretation, Launch Decision, Segmentation, and Multi-Experiment Error Control Context Yo...

Analytics & ExperimentationExperiment Analysis & ReadoutHypothesis Testing
97
1
288 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Product Manager

Instagram Stories: Set a Goal, Define Success Metrics and Pick a User Group to Grow

You are the product manager for Instagram Stories. What goal would you set for Stories, and how would you measure whether it is succeeding? Once you h...

Analytics & ExperimentationMetrics & KPIsSegmentation & Cohort Analysis
0
0
3 people solved
May 22, 2024
Microsoft logo
Microsoft
Medium
Product Manager

WhatsApp product strategy: allocating a one-billion-dollar investment budget

You are the product manager for WhatsApp and have been handed \$1B to invest in the product. How would you use the money, and why? `hint Choose what t...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
4 people solved
Jun 27, 2024
Meta logo
Meta
Medium
Data Scientist Locked

Analyze Multiple-Account Users in SQL

This question evaluates a data scientist's ability to perform SQL-level user- and account-level aggregation, grouping, and NULL-aware filtering to com...

Data Manipulation (SQL/Python)SQL
3
0
56 people solved
Feb 9, 2026
Capital One logo
Capital One
Medium
Data Scientist

Estimate Default Rates Using Logistic Regression Model

Estimate Default Rates Using Logistic Regression Model On-site Statistical Role Play: Estimate Credit-Card Default Probability for a New Customer Segm...

Statistics & Math
43
0
166 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Software Engineer

Solve linked list, top-K, and string reduction

Solve linked list, top-K, and string reduction Solve the following algorithmic tasks: 1) Given a singly linked list, return the k-th node from the end...

Coding & Algorithms
7
0
54 people solved
Jul 31, 2025
Google logo
Google
Medium
Product Manager

Estimate the Yearly Sales of a Restaurant You Know Well

Pick a restaurant you know well, such as a favorite place or one you order from often, and estimate how much revenue it takes in over a year. Walk the...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Sep 12, 2025
Shopify logo
Shopify
Medium
Data Scientist

Calculate Jaccard Similarity Score for Two String Lists

Scenario During pair programming, the interviewer asks you to compare two lists of merchant tags and quantify their similarity. Question Implement a P...

Coding & AlgorithmsArrays & Strings
15
0
193 people solved
Aug 4, 2025
Apple logo
Apple
Medium
Product Manager

Apple Music Product Sense: Pick a Listener Segment and Prioritize One Upgrade

You are a product manager on Apple Music, Apple's paid music streaming service. What would you change to make it better? `hint Narrow before you build...

Product Design & StrategyProduct Design & Improvement
0
0
5 people solved
Jul 2, 2024
Amazon logo
Amazon
Medium
Data Scientist

Ensure Correct Numeric Ordering in Visit ID Comparison

visits +----------+---------+-----------+---------------------+ | visit_id | user_id | page | visit_ts | +----------+---------+-------...

Data Manipulation (SQL/Python)
5
0
38 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Product Manager

Comparing Facebook App Health Between Two Countries With Normalized Metrics

You are a product manager at Meta. You are asked to analyze how Facebook is performing in one country, call it X, compared with another country, Y. Ex...

Analytics & ExperimentationMetrics & KPIsSegmentation & Cohort Analysis
0
0
8 people solved
Jan 19, 2025
Mavenclinic logo
Mavenclinic
Medium
Software Engineer Locked

Design an appointment scheduling system

This question evaluates system-design competencies such as API design, data modeling, concurrency control, scalability, and notification handling, and...

System Design
9
0
71 people solved
Feb 22, 2026
Amazon logo
Amazon
Medium
Product Manager

Winning back churned Amazon marketplace sellers on a tight budget

Some sellers have stopped selling on Amazon. As a product manager, how would you bring them back while keeping spending tight? Take "sellers" to mean ...

Product / Decision MakingGrowth & MonetizationPrioritization & Tradeoffs
0
0
4 people solved
May 6, 2024
Microsoft logo
Microsoft
Medium
Product Manager

Estimation exercise: total daily message volume on Slack

Estimate how many messages are sent on Slack in one day. `hint Workdays matter Slack is a work tool, so think about how a typical weekday differs from...

Product / Decision MakingEstimation & Market Sizing
0
0
4 people solved
Jan 10, 2025
CloudTrucks logo
CloudTrucks
Medium
Data Scientist

Assess Cultural Fit and Motivation for Joining CloudTrucks

Assess Cultural Fit and Motivation for Joining CloudTrucks Behavioral Interview — Data Scientist Phone Screen (CloudTrucks) Scenario A recruiter is as...

Behavioral & Leadership
3
0
35 people solved
Aug 4, 2025
Salesforce logo
Salesforce
Hard
Software Engineer

Answer ownership, conflict, and failure recovery questions

You are in a 45-minute hiring manager (behavioral) interview. Prepare structured answers to: 1. Ownership: Describe a project where you showed the mos...

Behavioral & LeadershipOwnership & ExecutionConflict & Collaboration
12
0
101 people solved
Jan 22, 2026
Intersystems logo
Intersystems
Medium
Software Engineer Locked

Parse nested XML inside CDATA

This question evaluates understanding of XML parsing and CDATA handling, including embedded-XML extraction, encoding and escaping concerns, error hand...

Software Engineering Fundamentals
2
0
43 people solved
Feb 12, 2026
TikTok logo
TikTok
Medium
Product Manager

TikTok Support Operations: Choose and Justify a Five-Metric Scorecard

You can track only five metrics for TikTok's customer service platform, where people go to report problems and get help. Which five would you choose, ...

Analytics & ExperimentationMetrics & KPIs
0
0
4 people solved
Mar 14, 2025
Snapchat logo
Snapchat
Hard
Data Scientist

Optimize Churn Prediction: Feature Engineering and Model Selection

Optimize Churn Prediction: Feature Engineering and Model Selection Weekly Churn Prediction (10M users): Feature Engineering, Model Choice, Explainabil...

Machine Learning
91
0
245 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Design A/B Test to Evaluate Payment Method Impact

Design A/B Test to Evaluate Payment Method Impact A/B Experiment Design: New Payment Method Rollout Context You are evaluating whether to launch a new...

Analytics & Experimentation
8
0
54 people solved
Aug 4, 2025
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