Interview Questions
Practice the exact questions companies are asking right now.
"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"
"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"
"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."
"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."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"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."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"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."
"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."
"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."
"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."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"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."
Explain Java DI, AOP, and transactions
Explain how dependency injection and AOP proxies are implemented in a modern Java framework such as Spring: bean lifecycle (creation, post-processing,...
Implement Markdown-to-HTML parser
Implement a function that converts a plain-text string into HTML supporting only these features: ( 1) Paragraphs: two or more consecutive newline char...
Define and validate product metrics
Define and validate product metrics End-to-End Analytics Design for a New Product Feature Context: You are the data engineer partnering with product, ...
Debug a Hive insert query
Given a Hive table schema and an incoming table plus an INSERT/SELECT statement meant to inject data, identify why the query fails and provide step-by...
Demonstrate ownership and conflict resolution
Demonstrate ownership and conflict resolution Behavioral: 0→1 Data Initiative, Prioritization, and Cross-Functional Leadership Context: Onsite intervi...
Design Algorithm to Minimize Payments in Expense-Sharing App
Scenario Expense-sharing app needs to settle debts among friends after a trip. Question Given a list of transactions (payer, payee, amount), design an...
Design Efficient Multi-Level Access Control System
Scenario Multi-level access control lists (country → city) must be queried quickly. Question Design and implement a permission system where each geogr...
Remove Duplicates While Preserving Order in List
Scenario A data pipeline receives an unordered list of IDs containing duplicates; downstream components require a duplicate-free list while preserving...
Compute User Group Stories and Aggregate Story Engagement
user_story_engagement +---------+----------+------------+------------+-------+-------+ | user_id | story_id | story_type | created_at | views | likes ...
Design "Restaurants You May Know" Recommendation Algorithm
Design "Restaurants You May Know" Recommendation Algorithm A food-delivery app wants to launch a personalized home-page module called "Restaurants You...
Analyze Recent Calling Behavior in France Using SQL
CALLS +---------+---------+---------------------+-------------------+----------+ | call_id | user_id | call_start_time | participant_cnt | is_vi...
Explore Subscription Patterns and Status Transitions with SQL/Pandas
subscriptions +-----------------+---------+-------------+ | subscription_id | status | status_date | +-----------------+---------+-------------+ | 10...
Clean and Aggregate Transactions for Finance Dashboard
transactions id | user_id | amount | timestamp | category 1 | 1001 | 19.99 | 2023-01-01 09:00:00 | grocery 2 | 1001 | 5.50 | 2023...
Implement Function to Return First n Prime Numbers
Scenario Quick algorithm screen to gauge Python fluency. Question Implement a Python function that returns the first n prime numbers. Hints An optimiz...
Identify Longest Consecutive Incrementing Watch-Time Sequence
Scenario A streaming platform records daily minutes watched per user and wants to identify engagement streaks. Question Given an unsorted integer arra...
Why Is the Sample Mean Approximately Normal for Large Samples?
In statistics we routinely treat the average of a large sample as if it were normally distributed — for example, when building confidence intervals fo...
Behavioral & Leadership Fit at Microsoft
Microsoft Product Manager Behavioral and Leadership Fit Prepare for a Microsoft Product Manager onsite behavioral and leadership interview. Use specif...
Communicating Top-Down Change
Communicating Top-Down Change Across an Operations Organization A VP has mandated an operations-wide initiative to improve safety, increase efficiency...
Behavioral Focus: Collaboration, Customer Obsession & Influence
Behavioral Focus: Collaboration, Customer Obsession, Measuring Impact, and Influence Prepare for a Microsoft Product Manager onsite behavioral loop co...
Should Meta build accessible VR?
You are a Product Manager in Meta's New Product Introduction organization for VR hardware. The team is considering an accessibility-focused VR experie...