A.probe request response， authentication request respon……

单项选择题Refer to the exhibit. A Cisco Aironet Wireless LAN Client Adapter has been installed and configured through the ADU on the PC. The Aironet System Tray Utility （ASTU） has been enabled during the installation and the icon appears in the system tray area in the lower right of the desktop. What is thesignificance of the icon？（）

A.It indicates that the radio of the client adapter is disabled
B.It indicates that the client adapter is not associated to an access point or another client
C.It indicates that the client adapter is associated to an access point or another client， but the user is not EAP authenticated
D.It indicates that the client adapter is associated to an access point or another client， that the user is authenticated if the client adapter is configured for EAP authentication， and that the signal strength is excellent or good
E.It indicates that the client adapter is associated to an access point or another client， that the user is authenticated if the client adapter is configured for EAP authentication， and that the signal strength is fair
F.It indicates that the client adapter is associated to an access point or another client， that the user is authenticated if the client adapter is configured for EAP authentication， and that the signal strength is poor

单项选择题Refer to the exhibit. The command spanning-tree guard root is configured on interface Gi0 0 on both switch S2 and S5. The global configuration command spanning-tree uplinkfast has been configured on both switch S2 and S5. The link between switch S4 and S5 fails. Will Host A be able to reach Host B？（）

A.Yes. Traffic can pass either from switch S6 to S3 to S2 to S1， or， from switch S6 to S5 to S2 to S1
B.No. Traffic will pass from switch S6 to S5 and dead-end at interface Gi 0/0
C.No. Traffic will loop back and forth between switch S5 and S2
D.Yes. Traffic will pass from switch S6 to S3 to S2 to S1
E.No. Traffic will either pass from switch S6 to S5 and dead-end， or traffic will pass from switch S6 to S3 to S2 and dead-end

单项选择题Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）

A.Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， Router B will maintain the role of master virtual route
B.Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， it will regain the master virtual router role
C.Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， Router A will maintain the role of master virtual router.
D.Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， it will regain the master virtual router role

多项选择题Refer to the exhibit. Which three statements accurately describe this GLBP topology？（）

A.Router A is responsible for answering ARP requests sent to the virtual IP address
B.If Router A becomes unavailable， Router B will forward packets sent to the virtual MAC address ofRouter A
C.If another router were added to this GLBP group， there would be two backup AVGs
D.Router B is in GLBP listen state
E.Router A alternately responds to ARP requests with different virtual MAC addresses
F.Router B will transition from blocking state to forwarding state when it becomes the AVG

多项选择题WhichtwoAironetenterprisesolutionstatementsaretrue？（）

A.A Cisco Aironet AP handles the transmission of beacon frames and also handles responses to probe-request frames from clients
B.A Cisco Aironet solution includes intelligent Cisco Aironet access points （APs） and Cisco Catalyst switches
C.In the Cisco Aironet solution， each AP is locally configured by the use of either a web interface or the command line interface
D.The Cisco Aironet AP handles real-time portions of the LWAPP protocol， and the WLAN controller handles those items which are not time sensitive
E.Virtual MAC architecture allows the splitting of the 802.11 protocol between the Cisco Aironet AP and a LAN switch