IP addressing and subnetting. Please do read the cram guide you downloaded on day 0 or day 1.

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0:00:00 - Welcome to the Course
0:2:57 - IP Addressing Primer
0:14:16 - Using IP Addresses
0:20:06 - Easy Subnetting
0:33:27 - Networks and Hosts
0:38:16 - VLSM
0:46:10 - IP Addressing Lab