102.6 Virtualization

Question 1

What are some examples of Hypservisors?

Answer 1

KVM - Built in to Linux
QEMU - What KVM is based on
VMWare
Xen
Virtualbox

Question 2

What are the two types of virtualization.

Answer 2

Full virtualization - guest system is not aware that it is a virtual machine

Para-virtualization - guest system is aware that it is a virtual machine and uses special drivers to communicate

Question 3

When cloning a linux virtual machine it essential to use this command.

Answer 3

cloud-init

Question 4

What is a container and what are the two types?

Answer 4

A container is an entirely isolated set of packages, libraries, and or applications that are completely independent from their surroundings.

Machine container: Shares a kernel and file system with the host computer

Application container: shares everything but the application files and library files that the application needs.

Question 5

What are 4 examples of containers?

Answer 5

Docker
nspawn (from systemd)
LXD
OpenShift