642-885 exam

Refer to the Cisco IOS DHCPv6 configuration shown in the exhibit. Which statement is correct?A . The configuration is missing a command under interface Gi0/1 to indicate to the attached hosts to use stateful DHCPv6 to obtain their IPv6 addressesB . The IPv6 router advertisements indicate to the attached hosts...

With IPv6 multicast, which feature can be used as a replacement method for static RP configuration?A . PIM SnoopingB . MLDC . MLD Snooping D . Embedded RP E . DHCPv6View AnswerAnswer: D Explanation:

What is enabled by default on Cisco IOS-XR routers and cannot be disabled?A . SSH serverB . Multicast routingC . IPv4 and IPv6 CEFD . IPv6 routingE . CDPF .  BFDView AnswerAnswer: C Explanation: Before using the BGP policy accounting feature, you must enable BGP on the router (CEF is...

Refer to the Cisco IOS-XR configuration exhibit. The Cisco IOS-XR router is unable to establish any PIM neighbor relationships. What is wrong with the configuration?A . The configuration is missing: interface gi0/0/0/0 ip pim sparse-mode interface gi0/0/0/1 ip pim sparse-mode interface loopback0 ip pim sparse-modeB . The configuration is missing:...

Assume that the R1 router is enabled for PIM-SM and receives a multicast packet sourced from 172.16.1.100, and the R1 router has multicast receivers on the Gi0/1, Gi0/2, Gi0/3 and Gi0/4 interfaces. The multicast packet from the 172.16.1.100 source must arrive on which interface on the R1 router for it...

DRAG DROP View AnswerAnswer: Explanation: Any Source Multicast - Uses RP's as the root of the shared tree for a multicast group, ONly (S,G) state is build between the source and the recevier, Spport SPT SwitchoverSource Specific Multicast - Uses (*,G) joins as well as (S,G) Joins , Requires IGMPV3...