# What is the reason to extend a Volume Group?# What is the purpose of the file called <code>/etc/fstab</code>?# How do you ensure that a file-system is mounted every time the system is started?# What did you have are the purposes of the following files: <code>/etc/passwd</code>, <code>/etc/shadow</code>, <code>/etc/group</code>?# Explain the purpose of the >code>/etc/skel</code> directory.# What do the terms UID and GID represent. What is their purpose?# List the steps to create a user account on a system.# List the steps to do change user account information on a system.# List the steps in order for users to move share file and directory accounts as "same group members.# List the steps to remove a user account. What is required to remove a user account's home directories onto a new filesystem? Whydirectory as well?