used for ingesting and processing streaming data in real time,
usage is very similar to that of Kinesis, but while Kinesis is an AWS Service, MSK is a fully managed service to run Apache Kafkaapplications ( which is Open source ).
Advantage of using MSK over own implementation of Kafka is exactly that MSK is fully managed and you don't have to take care of all the administrative tasks.
Main concepts of Kakfa are Producers, Topic and Consumers.
kafka