You can find links below about microservices (in addition to the lecture slides that are also available). Take a look at the material. What are the main points/ideas of a microservice architecture? Think of a couple of positive and a couple of negative sides for using microservices.

https://link.springer.com/chapter/10.1007/978-3-030-29193-8_7
https://arxiv.org/abs/1902.06282
https://link.springer.com/chapter/10.1007/978-3-030-31646-4_5
https://www.nginx.com/blog/microservices-at-netflix-architectural-best-practices/
https://docs.microsoft.com/en-us/dotnet/architecture/microservices/architect-microservice-container-applications/microservices-architecture
https://microservices.io/
https://www.martinfowler.com/articles/microservices.html