Box Interview Questions
Practice the exact questions companies are asking right now.
"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."
Implement a leaky-bucket rate limiter
Implement a Leaky-Bucket Rate Limiter with Tests and Distributed Design Context and Assumptions - Implement in a general-purpose language; the referen...
Solve classic troubleshooting & algorithm tasks
Question System failure troubleshooting: You can only SSH into the machine and the log file is huge. How would you locate the problem quickly? Flip a ...
Compute Top-K word frequencies under a path
Given a filesystem path that may contain nested subdirectories and files, compute the top K most frequent words across all files. Describe an in-memor...
Design out-of-order windowed stream processor
Design an event processor for an unbounded stream where each event has id, timestamp, payload string, and checksum. Events may arrive out of timestamp...
Design streaming window average processor
Question Design an event processor for an infinite out-of-order event stream (id, timestamp, payload, checksum). Validate checksum, discard events arr...
Diagnose failures via SSH and large logs
Troubleshooting Large Logs Over SSH and Designing Centralized Logging Context You are on-call for a production service that is failing. You have SSH a...
Identify and fix deadlock in locked code
Multithreaded Deadlock: Diagnose and Fix Context You have concurrent code that acquires multiple locks and occasionally deadlocks. The underlying issu...
Flip a specific bit in an integer
Given a non-negative integer num and a zero-based bit position p, return the integer resulting from flipping only the bit at position p (i.e., 0 becom...
Explain and diagram your past system architecture
System Design Walkthrough: Architecture You Have Built/Owned Provide a whiteboard-style walkthrough of a production system you have personally built o...