Interview Questions

Practice the exact questions companies are asking right now.

Questions

10.0k

Companies

520

Updated

08.21.2026

10.0k Questions 520 Companies08.21.2026

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_

"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"

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

"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."

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

"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."

CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

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."

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

"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."

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

"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."

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

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

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

_The_TaNk_

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

"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."

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

CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

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."

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

"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."

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

"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."

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

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

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

Role

Bloomberg

Medium

Software Engineer Locked

Solve sliding-window, flattening, decode, and O(1) random set

This multi-part question evaluates competence in string processing and nested parsing, linked-list flattening and recursion depth management, dynamic ...

Software EngineerIntern

Explain Core CS and Database Concepts

The interview included a fundamentals discussion covering topics like: - Explain common data structures and when you would choose arrays, linked lists...

Software Engineering Fundamentals

Software Engineer Locked

Compute Available Offers per User

This question evaluates event-stream processing, stateful per-user counting, and time-window filtering competencies, requiring correctness with ordere...

Backend EngineerIntern

Explain timing and testability concepts

For a digital implementation or backend-focused interview, explain the following concepts: 1. What are setup time and hold time? 2. How does clock ske...

Software Engineering Fundamentals

Software EngineerSenior+

Build Resilient Aggregation and Debug Routing

This onsite combined two software-engineering exercises: 1. Implement a service method that calls multiple mock downstream APIs, merges their response...

Software Engineering Fundamentals

Write SQL for repeat churn

Write a SQL query to measure the performance of a free-month promotion experiment. Assume experiment_users already contains only users who were eligib...

Data Manipulation (SQL/Python)

Machine Learning EngineerIntern Locked

Construct connected crop layout and safe paths

This question evaluates constructive grid design and graph-based pathfinding skills, specifically the ability to produce connected labeled regions tha...

Fetch, group, and print paginated activities

Fetch, group, and print paginated activities Given a paginated API that returns (totalCount, activities[]) for a requested page, implement code that i...

Detect credit-card transaction fraud

Credit-Card Fraud Detection: Real-Time Decisioning and System Design You are designing a real-time decisioning system for card-payment authorizations ...

Evaluate Key Metrics for Capital One Ad Campaign

Evaluate Key Metrics for Capital One Ad Campaign Streaming Ad Campaign Evaluation and ROI Comparison Context You are evaluating a credit-card marketin...

Analytics & Experimentation

Evaluate Dasher Initiatives with A/B Testing and Metrics

Evaluate Dasher Initiatives with A/B Testing and Metrics Scenario You are the product/analytics lead for a food-delivery marketplace. You must evaluat...

Analytics & Experimentation

Design Metrics for Content Moderation and Chatbot Evaluation

Design Metrics for Content Moderation and Chatbot Evaluation Scenario Trust & Safety data science: You are asked to design metrics for two situations:...

Analytics & Experimentation

Investigate Sudden Metric Changes and Design A/B Test

Investigate Sudden Metric Changes and Design A/B Test Scenario A core business metric (e.g., conversion, cancellations, or gross bookings) shows a sud...

Analytics & Experimentation

138 people solved

Aug 4, 2025

Medium

Data Scientist Locked

Measure Billboard Campaign Impact: Design, Bias, Test Strategy

Measure Billboard Campaign Impact: Design, Bias, Test Strategy evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistic...

Analytics & Experimentation

150

601 people solved

Aug 4, 2025

Tell me about a high-impact end-to-end project

Question Tell me about a high-impact project that you personally drove end-to-end. Walk through the full lifecycle and be ready to cover each of the f...

Behavioral & Leadership

Evaluate a Credit Card Partnership

You are a Product Manager evaluating a Capital One credit-card partnership with a merchant such as Uber. The business goal is to increase engagement a...

Product / Decision Making

Implement a stack supporting max and popMax

Design a data structure that behaves like a stack but also supports retrieving and removing the current maximum value. Implement a class MaxStack with...

Describe a project and its impact

You are interviewing for a Staff Data Engineer role supporting information security (e.g., detection engineering, alerting, network/security infrastru...

Behavioral & Leadership

Software EngineerNew Grad

Step Outside Your Professional Comfort Zone

Question Tell me about a time you deliberately stepped outside your professional comfort zone. Why did you take the risk, how did you prepare, and wha...

Behavioral & Leadership

Software EngineerNew Grad

Overcome an Obstacle That Threatens Delivery

Question Describe a significant obstacle that threatened a goal you owned. How did you determine the real constraint, change the plan, and keep people...

Behavioral & Leadership

3 people solved

Mar 12, 2026

Interview Questions

Solve sliding-window, flattening, decode, and O(1) random set

Explain Core CS and Database Concepts

Compute Available Offers per User

Explain timing and testability concepts

Build Resilient Aggregation and Debug Routing

Write SQL for repeat churn

Construct connected crop layout and safe paths

Fetch, group, and print paginated activities

Detect credit-card transaction fraud

Evaluate Key Metrics for Capital One Ad Campaign

Evaluate Dasher Initiatives with A/B Testing and Metrics

Design Metrics for Content Moderation and Chatbot Evaluation

Investigate Sudden Metric Changes and Design A/B Test

Measure Billboard Campaign Impact: Design, Bias, Test Strategy

Tell me about a high-impact end-to-end project

Evaluate a Credit Card Partnership

Implement a stack supporting max and popMax

Describe a project and its impact

Step Outside Your Professional Comfort Zone

Overcome an Obstacle That Threatens Delivery

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