Basic-Concepts
Web Servers
Uptime
Internet
Programming
Version Control
Configuration Management
Virtualization
Databases
Mail Servers
Domain Name Servers
Some useful links to cover the concepts of Kafka
https://www.cloudkarafka.com/blog/2016-11-30-part1-kafka-for-beginners-what-is-apache-kafka.html
https://kafka.apache.org/documentation