# Flink Streaming - Real-Time Data Processing Essentials: Lambda vs Kappa Architectures, UDFs, and Windowing Techniques (Day 2 Lecture)

> In this lecture, we discuss the differences between Lambda and Kappa architectures, User-Defined Functions (UDFs), and the concepts of data-driven and time-driven windows, all essential components of real-time data processing.

- Web page: https://julie.techexpert.io/lesson/infra-flink-streaming-day-2-lecture-v2
- Program: [Data Engineering Boot Camp V2 Combined Track](https://julie.techexpert.io/program/data-engineering-boot-camp-v2-combined-track)
- Module: Week 3: Streaming Pipelines with Apache Flink V2
- Access: Requires enrollment in Data Engineering Boot Camp V2 Combined Track
- Length: 48 min video
- Skills: ETL/ELT, Apache Spark, APIs, Postgres, Kafka, Flink
- Academy: Julies academy to catch all other programs

## About this lesson

In this lecture, we discuss the differences between Lambda and Kappa architectures, User-Defined Functions (UDFs), and the concepts of data-driven and time-driven windows, all essential components of real-time data processing.

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