A high-performance, low-latency framework that uses Protocol Buffers (Protobuf) instead of JSON. It is ideal for microservices because it compiles strict contracts into native code across multiple languages.
: Request-Response, Publish-Subscribe, Push, Short/Long Polling, and Server-Sent Events (SSE).
The Open Systems Interconnection (OSI) model standardizes network functions. As a backend engineer, you will primarily operate at two layers: udemy fundamentals of backend engineering portable
What (Go, Python, Node.js, etc.) you plan to use. Your current experience level with system design.
: Coverage of how the OS manages sockets, buffers, and asynchronous I/O to support high-performance applications. Execution Patterns : Coverage of how the OS manages sockets,
Portable fundamentals require understanding data persistence. You need to know:
Modern backend systems leverage HTTP/2 (multiplexing over a single TCP connection) and HTTP/3 (built on QUIC over UDP) to reduce latency and eliminate head-of-line blocking. No matter the framework
Focuses on end-user processes. This is where protocols like HTTP , FTP , and SMTP operate. Modern Communication Paradigms
It is frequently cited as a "Bestseller" with high ratings (approx. 4.7/5) and a large community of over 50,000 students.
To fetch user 5: GET /users/5 → returns JSON. To create user: POST /users with body. No matter the framework, the route design remains identical.