单项选择题

Refer to the exhibit. The command spanning-tree guard r……

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.

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热门试题

多项选择题Refer to the exhibit. Which three statements are true about trust boundaries in the campus network？（Choose three.）（）

A. A device is trusted if it correctly classifies packets.
B. A device is trusted if it correctly declassifies packets.
C. The outermost trusted devices represent the trust boundary.
D. Classification and marking occur using 802.1ab QoS bits before reaching the trust boundary.
E. Network trust boundaries are automatically configured in IOS version 12.3 and later.
F. For scalability， classification should be done as close to the edge as possible.

单项选择题Refer to the exhibit. Which statement is true about where trust boundaries should be established in a network？（）

A. Endpoint 1 is the only acceptable place to establish a trust boundary.
B. Endpoint 1 is the optimal place to establish a trust boundary. Endpoints 2 and 3 are acceptable places to establish a trust boundary.
C. Endpoint 2 is the only acceptable place to establish a trust boundary.
D. Endpoint 2 is the optimal place to establish a trust boundary. Endpoints 1 and 3 are acceptable places to establish a trust boundary.
E. Endpoints 1 and 2 are optimal places to establish a trust boundary. Endpoint 3 is an acceptable place to establish a trust boundary.
F. Endpoints 2 and 3 are optimal places to establish a trust boundary. Endpoint 1 is an acceptable place to establish a trust boundary.

单项选择题Refer to the exhibit. When a profile is configured in the Aironet Desktop Utility， which security option permits the configuration of host-based Extensible Authentication Protocol （EAP）？（）

A. WPA/WPA2/CCKM
B. WPA/WPA2 Passphrase
C. 802.1x
D. Pre-Shared Key （Static WEP）

单项选择题WhichissueorsetofissuesdoestheLightweightAccessPointProtocol（LWAPP）address？（）

A. reduction of processing in wireless controllers
B. distributed approach to authentication， encryption， and policy enforcement
C. provides security by blocking communication between access points and wireless clients
D. access point discovery， information exchange， and configuration

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 router.
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.