VxRail 2 node configuration Q&A

I am deploying 2 node VxRail configuration, some question arising looking for solution

1. what licensing model use

2. Can deploy without vSan licenses

3. Can deploy on 1G Network ? or 10Gb only network?

4. I have 4 node license can it be split in 2-2 node configuration ????

Prompt response will be highly appeciate