HTTPS Traffic sniffling lab(Help)



I am using the old ejPT course (Penetration Test Prerequisites) because I am new to this. The goal is to take this course to get foundation then move to ejPTv2 course. That said , The previous slides before the the HTTPS Traffic sniffing lab do not cover some of the knowledge required to complete this lab. Does anyone else have this problem? Did it help anyone to skip down to the Networking section which as a Wireshark study guide or did you use some other strategy? Any thoughts are appreciated.