1.  A service set is a set of all the devices joined or associated to a Wlan
 Independent Basic Service Set (Adhoc Mode)
◦ Clients connect directly to each other without an access point
 Basic Service Set BSS (Infrastructure Mode)
◦ A single access point which all wireless clients associate with
 Extended Service Set ESS(Infrastructure Mode)
◦ Two or more BSS that operate as a single service set and share a common
SSID
◦ ESS extends the range of wireless coverage so that mobiles can roam.
Roaming allows a mobile to associate with the access point with the
strongest signal. When the mobile moves into the service area of another
access points it reassociates with the nearest access point.
◦ ESS with more than 1 access point increases the capacity or throughput
available to a many mobile devices. If there are 2 Access Points, half the
devices will associate with 1 AP and the other devices will associate with
the other AP and all will get a better data rate
 SSID is the Service Set Identifier;
◦ A name that is used to identify the service set - Case sensitive and up to 32
◦ characters long