What happens when I reboot an EC2 instance?

Question

When I reboot an EC2 instance, do I get the initial image again, or is the state of the hard disk before the reboot kept?

And what happens with billing, does the hour st

Answer 1

When you rebooting an instance, it will keep remains same hypervisor and restart the VM just like normal Linux reboot.

If you created a VM with ephemeral block store, then you would not lose the ephemeral storage when you restart the instance.

As mentioned above, rebooting will not affect the billing