1. What are the principal problems with multi-tier software architectures? Expla

1. What are the principal problems with multi-tier software architectures? Explain how a microservices architecture helps with these problems. 2. Imagine that your software includes a feature that can automatically create a contents list for a document or book. Propose tests that you might develop to test this feature. It is described by the following user stories: ***As a user, I want to automatically create a contents list for my document that includes all of the headings that I have marked up in my text. ***As a user, I want to be able to identify elements of a contents list and mark these up at different levels. 3. Explain how the use of Git and a shared public Git repository simplifies the process of managing open-source development when many developers may be working on the same code. Justify your response.