Chat Interview Questions
3 interview questions in our bank cover Chat, most of them System Design for ML. They average 3.3/5 difficulty — medium — and each one was reported by a candidate after a real interview. Companies known to ask about Chat: Reddit, Apple, Airbnb.
Practice these on the problems board →Companies that ask about Chat
Question mix
- System Design for ML3
Difficulty
- 3/5 — medium2
- 4/5 — hard1
Questions tagged Chat
Subreddit Live Chat System
3/5This Reddit system design problem asks you to architect a real-time chat infrastructure capable of supporting massive subreddits during high-traffic viral events. You must address low-latency message fan-out, connection management strategies, historical message retrieval, and basic moderation controls under extreme concurrency scales. The exercise tests large-scale distributed systems principles and trade-off analysis. Reviewing the complete architectural blueprint and expert solution requires a subscription.
System Design for MLRedditDesign a ChatGPT-like Conversational AI System
4/5In this advanced machine learning system design interview frequently asked at Apple, candidates are challenged to architect a conversational artificial intelligence application comparable to ChatGPT. The exercise centers on designing scalable pipelines that support token-by-token response streaming, low-latency inference, and persistent session history management across user interactions. Access the complete system design blueprint, architectural considerations, and expert recommendations by securing a paid subscription.
System Design for MLAppleGroup Chat / Messaging System Design
3/5Master the architectural patterns behind building a scalable communication platform in this system design exercise frequently featured in Airbnb technical interviews. Learn how to architect real-time message dispatching, handle offline message retention, manage read statuses, and optimize fan-out distribution strategies for large participant groups. You will explore database storage schemas and traffic scaling bottlenecks. Access to the comprehensive architectural walkthrough and expert-crafted reference solution requires a subscription.
System Design for MLAirbnb
Studied alongside
Chat interview FAQ
- How many Chat interview questions are there?
- 3 reported questions, mostly System Design for ML.
- Which companies ask Chat questions?
- Reddit (1), Apple (1), Airbnb (1).
- How hard are Chat questions?
- They average 3.3 out of 5: 2 at 3/5, 1 at 4/5.