Protocol

Introduction

HTTP is not the only protocol. There are other protocols for communication.

TCP

TCP: Transmission Control Protocol

Characteristics

• Packets arrive in order
• Data Integrity (no missing packet)

UDP

UDP: User datagram protocol

• No data integrity guarantee
• Packets may not arrive in order

RPC

gRPC: open source high performance Remote Procedure Call

Characteristics

• Strick Protocol to Follow
  • TCP and UDP's data can be of any form

Reference

• System Design Primer (Communication)
• Computer Networks - a system approach (PDF)
• Computer Networks - a system approach (Doc Style)