InGLBP,whichrouterwillrespondtoclientARPrequests?（）
A. TheactivevirtualgatewaywillreplywithoneoffourpossiblevirtualMACaddresses.
B. AllGLBPmemberrouterswillreplyinround-robinfashion.
C. TheactivevirtualgatewaywillreplywithitsownhardwareMACaddress.
D. TheGLBPmemberrouterswillreplywithoneoffourpossibleburnedinhardwareaddresses
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Which of the following statements about MD5 Routing Updates authentication is valid？ （）
A. The MD5 algorithm inputs the routing updates of arbitrary length and outputs a 128-bit hash
B. The MD5 algorithm inputs the routing updates of every 64bit length and outputs an 8-bit hash
C. Multiple keys are supported
D. Routing updates packets are delivered in encrypted messages
E. Shared secret keys are delivered in encrypted messages
Your company wants Server 1/eth0 （vNIC 1） configured so that it always uses Fabric Interconnect A Port Channel 1 （Po1） when it communicates with anything outside of the Cisco UCS domain. However， if vNIC 1 fails over to Fabric Interconnect B using fabric failover， then vNIC 1 can any uplink port on Fabric Interconnect B. Which statements are true？ （）
A. The fabric interconnects must be in end-host mode.
B. A pin group must be configured on the server tab in Cisco UCS Manager.
C. In the service profile for Server 1， vNIC 1 must be explicitly assigned to a pin group.
D. Server 1 cannot be configured to meet the requirement. A server can only be manually pinned to a single physical interface and not a port channel because of the LACP load-balancing algorithm.
E. Server 1 cannot be configured to meet the requirement. A server is either manually pinned to an uplink on both fabric interconnects or the server is automatically pinned， but not both.
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.
Which 4 statements regarding MPLS Label Stack Encoding is true？（）
A value of 4 represents the "Implicit NULL Label."
B. A value of 0 represents the "IPv4 Explicit NULL Label."
C. A value of 1 represents the "Router Alert Label". The use of this label is analogous to the use of the"Router Alert Option" in IP packets （for example， ping with record route option）
D. A value of 2 represents the "IPv6 Explicit NULL Label"
E. A value of 1 represents the "IPv1 Explicit NULL Label"
F. A value of 3 represents the "Implicit NULL Label"
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