Here's a link to a study guide for a course called Network Essentials. (There is a textbook by the same name.) I think it will help you better understand the objective set by CompTIA in the link you posted.
1.2 Specify the main features of 802.2 (LLC), 802.3 (Ethernet), 802.5 (token ring), 802.11b (wireless) and FDDI networking technologies, including:
If you have not yet learned networking technologies, you should probably wait to challenge the n+ exam until you fully learn this info.
Also, keep watching this forum as I'm hoping we will all be learning more about networking technologies from the grand poobah, ixl.