What is WSUS?

WSUS refers to "Windows Server Update Services" which is a software provided by Microsoft to help systems administrators to manage Windows and Microsoft products in a corporate environment.

Think of your Windows 10 computer updates, but for Windows servers and how you would want to manage the approval of updates, timing of updating, etc. within a centralised system.

What is Network Time Protocol (NTP)? 

FIrst off, network Time Protocol (NTP) is a protocol used to synchronize computer clock times in a network.

Why is it important to synchronize computer clock times?

It is important to synchronize computer clock times via the network time protocol (NTP) on server clocks across your network as this  helps t prevent data loss and eliminate SSL problems .