Roblox - VO Prep

Roblox Roblox VO Interview Question: Calls

Your team is debugging a program’s performance. A tracing tool records all function calls and returns, producing a sequence of events. Your task is to a…

Roblox Roblox interview question Most Frequent Call Stack – Debugging Trace Analysis

Your team is debugging a program’s performance. A tracing tool records all function calls and returns, producing a sequence of events.Your task is to analyze these raw traces and determine which call stack occurs most frequently.Finding the most frequent call stack will help identify where the main slowdown may be occurring. Input Output Call Stack…

Roblox Roblox Favorites/Bookmark System Design – High-QPS Item Counter & Per-User State

Roblox has a marketplace with millions of items. A user can flag/unflag any item as a favorite (similar to Like/Bookmark).Goal: Design a system that can show the number of favorites each item has. User Stories / QPS targets Extra:– As a user, I want to list all items I have favorited — 50K QPS (Insert…

Roblox Roblox Game Detail Page System Design – Optimize Friend & Player Count Display

This question focuses on system design and scalability within the context of Roblox’s Game Detail Page.You’re asked to design how to efficiently display: while considering massive user scale (100M total, 10M concurrent). Key challenges include: Typical design solutions might involve: The VOprep team has long accompanied candidates through various major company OAs and VOs, including Roblox, Google,…

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Roblox Roblox VO Interview Question: Calls

Roblox Roblox interview question Most Frequent Call Stack – Debugging Trace Analysis

Roblox Roblox Favorites/Bookmark System Design – High-QPS Item Counter & Per-User State

Roblox Roblox Game Detail Page System Design – Optimize Friend & Player Count Display

Contact me

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