Hi,
When i install the OS the kernel parameters are set according with OS hardware,swap.Right?
If in time i add more cpus or RAM those cpus or RAM related kernel parameters are changed automatically?
When in a VM a process is running then there is paging activity at VM OS level and the same at host(hypervisor) level?I mean that for a certain process paging happens in VM memory and this result in paging at OS host level. Correct?
Thank you

1. When you install an os default kernel parameters are set. This may depend on what you have just installed (and how). So the answer is no.
2. I don't really understand what is it about, kernel uses the available RAM and available CPUs. What are the related parameters?
3. no, no, no. that is completely wrong. paging activity is not related [directly] to any process and/or if it was executed inside a VM or not. Paging may/will occur in every host, including VMs and real hosts, independently from each other, but depending on their own configuration and resource usage.
4. the title is wrong again (and meaningless)
5. why don't you look for answers yourself and learn something [more] about VMs, process execution, and whatever you are interested in?

If by "kernel parameters" you mean amount of CPUs and memory, those are determined at every boot.

A VM is a user process, so it's swapping is unrelated to OS swapping.

by kernel parameters i meant those seen with sysctl.They can be seen under /proc/sys -i thought then based on how many cpus or how much memory is in system,then related cpu or memory parameters are set to reflect the number of cpus or how much memory is there.
I learn but sometimes i like to discuss with others.
Every VM has an OS totally separated from host OS and each has its own memory management.