December 31, 2017 is an important date for many in the DoD world. For those with contracts subject to DFARS 252.204-7012 it might feel like an overwhelming and impending date. I am sure this is another heavy responsibility thrown onto your plate with the expectation you get it done.
Smoke testing is a term used to describe the testing process for servers after patches are applied.
The process typically involves making sure servers are rebooted in the right order, making sure they have completely rebooted, restarting applications in the right order, and then testing to be certain everything is working properly when users return to work in the morning.
This typically takes 30 minutes per server, depending upon your environment.
PCs are not typically smoke tested, or if so, not all of them.