1- Whatever the software you use to draw the diagrams, please submit the original file in addition to an exported PDF file for each diagram. For example, if you use Draw.io, you will submit the original XML files, and you will also export each diagram as a PDF file and submit those too.
2- Provide your answer to the questions in Challenge 2 in a Word document and submit along with the diagram files.
[1] https://azureforeducation.microsoft.com/devtools