Effective DevOps with AWS - Second Edition

Chapter 6: Scaling Your Infrastructure

1. No, it is not always the best choice because a multi-level application means more components to manage. If your application works well as a monolith, you can accept a short period of downtime and the traffic will not increase over time. You can also consider letting it run as it is.
2. In the multi-level approach used in this book, all software is in one ZIP file, instead in a microservices and more in the serverless approach it is broken in multiple parts. For example, in an e-commerce software (the software used to show the content to the users in one service), the part to manage the backend to place a new product is in one service, while the part to manage the payment is in another service, and so on.  ...