1. What is EPEL and Write a instructions to install and use it
EPEL(Extra Package for Enterprise Linux) is a special intrest group from the Ferdora group that provides some additional packages for Redhat family i.e.Ubuntu,CentoOS etc.
For access EPEL user should install EPEL repository
yum install epel-release -y
For refresh the epel repo
yum repolist
Install packages from epel repo
yum install pkg1