Grokking the
System Design Interview
One-stop portal for all your system design interview needs.
System Design Fundamentals
System Design Questions
System Design Patterns
System Design Tradeoffs
Microservices Design Patterns
Trusted by developers working in top tech companies like
Preview our most popular courses
URL Shortening Service like TinyURL
For converting long URLs into shorter, unique aliases while ensuring scalability.
Facebook Messenger
Creating a real-time messaging platform for text, voice, and video communication.
Creating a platform for short text updates, social interaction, and real-time information sharing.
Youtube or Netflix
Building a platform for streaming video with scalable delivery and recommendations.
API Rate Limiter
Controlling the number of requests a user can make to an API within a specified time frame.
Web Crawler
Creating a system that systematically browses the web to index and gather data.
Yelp or Nearby Friends
User reviews and local business discovery & showing nearby locations in real-time.
Uber backend
Designing Uber's backend involves real-time ride matching and payment processing.
Ticketmaster
Building a platform for event ticket sales, distribution, and real-time inventory management.
Load Balancing
Distributing incoming network traffic across multiple servers to ensure reliability and optimal performance.
API Gateway
Manages and routes API requests, providing a unified entry point, security, and request handling.
Domain Name System (DNS)
Translates human-readable domain names into IP addresses, enabling internet navigation.
Caching
Storing frequently accessed data temporarily to speed up retrieval and reduce load on the main data source.
Data Partitioning
Divides a database into smaller pieces to improve performance and scalability.
Proxies
Act as intermediaries between clients and servers to enhance security, privacy, and performance.
Redundancy and Replication
Duplicating critical system components to ensure reliability and availability in case of failures.
CAP & PACELC Theorems
Balances availability vs consistency during partitions and latency vs consistency otherwise.
Databases (SQL vs. NoSQL)
Databases store, organize, and manage data for efficient retrieval and manipulation.
Indexes
Optimize data retrieval speed by creating quick access paths to specific data in a database.
Bloom Filters
Space-efficient data structures used to test whether an element is likely in a set, with possible false positives.
Quorum
The minimum number of nodes required to agree on a decision in a distributed system to ensure consistency.
Heartbeat
Regular signals sent between system components to monitor their status and ensure they are operational.
Checksum
Calculated value used to verify the integrity of data by detecting errors or corruption during transmission or storage.
Leader and Follower
A replication model where the leader handles writes, and followers replicate data for consistency.
Distributed Messaging System
Messaging System enables reliable communication between applications via message passing.
Distributed File System
Allows access to files across multiple servers, ensuring scalability and fault tolerance.
Gossip Protocol
A communication method where nodes in a network spread information randomly to ensure eventual consistency.
Split Brain
"Split Brain" occurs when network partitions cause multiple nodes to act as leaders, leading to conflicts.
Vector Clocks
Track causal relationships between events in distributed systems to ensure consistency.
Merkle Trees
Data structures that verify large data sets' integrity by organizing hashes into a hierarchical tree.
Hear from Successful Tech Professionals
All System Design Courses
