This document contains questions about wireless local area network (WLAN) concepts and technologies. It asks about the basic building block of an 802.11 WLAN, the definition of an extended service set, services provided by IEEE 802.11, whether a distribution system is a wireless network, how the concept of association relates to mobility, security areas addressed by IEEE 802.11i, phases of IEEE 802.11i operation, and the difference between TKIP and CCMP encryption protocols.