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It is important as a Linux System Administrator to update software on your Linux system periodically. Performing periodic updates will fix software bugs and inefficiencies as well as apply security patches in order to better secure your Linux server.
'''You are required to perform the following command for ALL of your 4 VMs:'''
<b><code><span style="color:#3366CC;font-size:1.2em;">yum update</span></code></b>
