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While reviewing an existing network design, you are discussing the characteristics of different STP versions. Which protocol minimizes unicast flooding during a Topology Change Notification in a Layer 2 switched network with many VLANs?
ANSWER : A
A green data center is being deployed and a design requirement is to be able to readily scale server virtualization Which IETF standard technology can provide this requirement?
A. data center bridging
B. unified fabric
C. Transparent Interconnection of Lots of Links
D. fabric path
ANSWER : C
Which two statements describe the usage of the IS-IS overload bit technique? (Choose two )
A. lf overload-bit is set on a Level 2 intermediate system, the other Level 2 intermediate systems in the topology will stop using the overloaded IS to forward Level 2 traffic However, the intermediate system can still forward Level 1 traffic
B. It can be set in intermediate systems (IS-IS routers) to prioritize control plane CSNP packets.
C. It can be used to automatically synchronize the link-state database between Level 1 intermediate systems
D. It can be set in intermediate systems (IS-IS routers) to avoid traffic black holes until routing protocols are fully converged after a reload operation.
E. It can be set in intermediate systems (IS-IS routers) to attract transit traffic from other intermediate systems
ANSWER : A,D
You are designing a large-scale DMVPN network with more than 500 spokes using EIGRP as the IGP protocol Which design option eliminates potential tunnel down events on the spoke routers due to the holding time expiration?
A. Increase the hold queue on the physical interface of the hub router.
B. Increase the hold queue on the tunnel interface of the spoke routers
C. Increase the hold queue on the tunnel interface of the hub router
D. Apply QoS for pak_priority class E. Increase the hold queue on the physical interface of the spoke routers.
ANSWER : C
Company XYZ is designing the network for IPv6 security and they have these design requirements: A switch or router must deny access to traffic from sources with addresses that are correct, but are topologically incorrect Devices must block Neighbor Discovery Protocol resolution for destination addresses that are not found in the binding table. Which two IPv4 security features are recommended for this company? (Choose two)
A. IPv6 DHCP Guard
B. IPv6 Source Guard
C. IPv6 Destination Guard
D. IPv6 Prefix Guard
E. IPv6 RA Guard
ANSWER : C,D