CCNA Wireless Official Exam Certification Guide part 49 is a best of breed Cisco® exam study guide that focuses specifically on the objectives for the CCNA® Wireless IUWNE exam. Senior instructor Brandon Carroll shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics. | 452 CCNA Wireless Official Exam Certification Guide Aironet Desktop Utility ADU Cisco software used to manage a single a b g wireless card. Airport Extreme The MAC-OSX wireless client. amplifier Added between the AP and the antenna to strengthen the signal. amplitude The volume of the signal. anchor The original controller. Announcement Traffic Indication Message ATIM Used in IEEE ad hoc or independent BSS networks to announce the existence of buffered frames when a client is in sleep mode. AP priming After the AP is associated with at least one controller the AP gets a list of other controllers it can associate with from the one that is already associated with. ARP Address Resolution Protocol. Used to resolve a MAC address to an IP address. association request A request from a client to the AP for association. association response A response from an AP to a client during open association. asymmetric tunneling Traffic from the client is routed to the destination regardless of its source address. The return traffic is sent to its original controller called an anchor and is tunneled to the new controller. attenuator Reduces the signal if there is too much signal causing bleed-over into other networks. authentication request A request from a client to an AP during open authentication. authentication response A response from an AP to a client during open authentication. authentication server An AAA server that has a list of users in one form or another that can verify the supplicant. authenticator The switch. Autonomous Workgroup Bridge aWGB A wireless bridge operating autonomously. autoprovisioning Simplifies deployments when you have a large number of controllers. azimuth The angle measured in degrees between a reference plane and a point. B backoff timer A random number that begins a countdown process while listening. bandwidth The frequency spectrum measured in Hertz. Bandwidth can refer to data rates or the width of an RF channel. barker code Defines the .