Take a quick refresher on the essentials of distributed systems, including core concepts and theorems.

Deep Dive into System Design Interview

This module talks about establishing the basic principles of distributed systems. It explains the scope of their functionality by discussing what distributed systems can and can’t achieve. It also covers the basic algorithms and protocols of distributed systems through easy-to-follow examples and diagrams, which illustrate the thinking behind design decisions and expand on how they can be practiced.

Distributed Systems

**ACID** is a set of properties of traditional database transactions that provide guarantees around the expected behavior of transactions during errors, power failures, etc. More specifically, these properties are the following.

## Atomicity \(A\)
**Atomicity** guarantees that a transaction that comprises multiple operations is treated as a single unit. This means that either *all* operations of the transaction are executed or _none_ of them are.

This concept of atomicity extends to distributed systems, where the system might need to execute the same operation in multiple nodes of the system in an atomic way. So, the operation is either executed to all the nodes or none.

# Atomicity \(A\)
**Atomicity** guarantees that a transaction that comprises multiple operations is treated as a single unit. This means that either *all* operations of the transaction are executed or _none_ of them are.

This concept of atomicity extends to distributed systems, where the system might need to execute the same operation in multiple nodes of the system in an atomic way. So, the operation is either executed to all the nodes or none.

Introduction to Distributed Systems

Basic Concepts and Theorems

Conclusion

ACID Transactions

Atomicity (A)