Question

In para virtualization guest OSes run in isolation. True/false

Answer 1

false.  Fully virtualization only isolation

Answer 2

It is true that in para virtualization guest OSes run in isolation.

Para virtualized AMIs have been well known to support only Linux.

A guest OS ensures that it is in a virtualised state.  

Taking advantage of hardware extensions like GPU, networking and many more remains a big challenge in this case.