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.

A. access point certification and software control
B. compression and Layer 3 address mapping
C. Layer 3 addressing and distribution
D. packet encapsulation， fragmentation， and formatting
E. SNMP monitoring services

A.Physically the voice network and the data network are separate
B.The voice traffic will normally be on a different IP subnet than will the data traffic
C.End user intervention is necessary to place the phone into the proper VLAN
D.The same security policy should be implemented for both voice and data traffic
E.The data VLAN must be configured as the native VLAN

A.：：/0 is the unspecified address， and ：：/128 is the multicast address
B.：：/0 is the unicast address， and ：：/128 is the anycast address
C.：：/0 is the unicast address， and ：：/128 is the multicast address
D.：：/0 is the anycast address， and ：：/128 is the multicast address
E.：：/0 is the default route， and ：：/128 is the unspecified address
F.：：/0 is the anycast address， and ：：/128 is the default address

A. The Aironet Desktop Utility （ADU） can be used to establish the association between the client adapter  and the access point， manage authentication to the wireless network， and enable data encryption.
B. The Aironet Desktop Utility （ADU） and the Microsoft Wireless Configuration Manager can be used at the same time to configure the wireless client adapter.
C. The Aironet Desktop Utility （ADU） can support only one wireless client adapter installed and used at a  time.
D. The Aironet Desktop Utility （ADU） profile manager feature can create and manage only one profile for the wireless client adapter.
E. When the user selects a different profile in the Aironet Desktop Utility （ADU）， the settings for the wireless client adapter are changed only after a reboot.

A.All six routes will be installed in the routing table
B.Two routes will be installed in the routing table
C.Four routes will be installed in the routing table
D.All the routes were redistributed into BGP from an IGP
E.All the routes were originated by BGP with the network command

A.Voice VLANs eliminate the need for QoS configuration
B.Voice VLANs are used on trunk links to eliminate the need for QoS CoS markings
C.Voice VLANs are mainly used to reduce the number of access switch ports that are used in the network
D.Voice VLANs can be configured to forward existing CoS priorities or override them
E.Voice VLANs are mainly used between access layer switches and distribution layer switches
F.Voice VLANs can be configured on Layer 2 ports only

A.probe request/response， authentication request/response， association request/response
B.association request/response， authentication request/response， probe request/response
C.probe request/response， association request/response， authentication request/response
D.association request/response， probe request/response， authentication request/response

A.0
B.1
C.10
D.200

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