1. False. A version of a package can be visible in more than one view.
2. False. Pipeline artifacts can only be consumed from within other pipelines within Azure DevOps.
3. True. Azure Artifact feeds can be used to share universal packages to other products. This allows you to compile an application in Azure DevOps, upload the binaries as a universal package, and download it again in another product. This is useful when using another deployment tool, for example, Octopus Deploy.
4. The correct answers are numbers 2 and 4. Answer number 1 is incorrect since the package references (either in a .csproj file or in a nuget.config file) should only reference packages by name and version. Answer number 3 is incorrect since consumer is not a valid access level in Azure Artifact feeds. The correct access level is reader (or higher), making answer number 2 correct. Answer number 4 is also correct. You need to add the package location to your NuGet configuration.
5. One motivator can be the size of the solution. If compiling and testing the solution is taking so long that developers have to wait for feedback in relation to their work, it can be better to split the solution into smaller parts. This will shorten the feedback loop for developers, thereby increasing speed. Another motivator can be that multiple teams are working on an application and they want to increase the amount of isolation between teams.