# Change to your home directory.
# <ol> <li value="2">Issue the command: <code>yum install BackupPC</code> and answer <code>y</code> to the question about installation.#* <ol type="a"> <li>Where did ''yum'' get the BackupPC software?</li>#* <li>Why could ''yum'' install BackupPC when rpm couldn't?</li> </ol> </li># <li>Issue an RPM query to verify that BackupPC is installed.</li># <li>Issue the command: <code>yum remove BackupPC</code></li># <li>Issue an RPM query to verify that BackupPC is no longer installed.</li># <li>Install <code>nled</code> using '''yum'''.</li># <li>Issue this command: <code>yum info cups</code></li>#</ol>:* Based on the result, do you think that cups is a useful package for your system? If not, try removing it.
# Unused and unneeded software can present a security risk and ties up disk space needlessly. Find at least 4 other packages that you're not using on your system, and remove them. Be careful to ensure that removing those packages does not also remove other software that you do need.
