Free H12-891_V1.0 Exam Braindumps
HCIE-Datacom V1.0 Questions 166–170 (page: 35)

Updated On: 10-Feb-2026

In MPLSVPN, in order to distinguish between IPv4 prefixes that use the same address space, the RD value is added to the IPv4 address, and the following options are described correctly as ?

  1. RD can be used to control the publication of VPN routing information
  2. On a PE device, each VPN instance corresponds to an RD value, and the RD value must be unique on the same PE device
  3. RD is encapsulated in the Update message as an extended community attribute of BGP during delivery
  4. After the PE receives an IPv4 route from CE, it adds an RD to the route to IPv4 that translates to a globally unique VPN-IPv4 route and publishes it on the public network

Answer(s): B



What improvements have been made to the IGMPv2 protocol compared to IGMPv1? ( Multiple Choice)

  1. Added maximum response time field
  2. Added high group messages
  3. Added specific group query message
  4. Added a specific source group query packet

Answer(s): A,B,C



RTA is the source DR router, RTB is the RP router, and the multicast source sends multicast data to the RTA, but the PIM is not visible on the RTB Register the multicast source to which the message is registered, then the possible causes are ?

  1. Multicast network statically configures RP, while RTA router does not statically configure RP
  2. The RP elected by RTA is not an RTB
  3. RTB to RTA has no unicast routing, causing the RTB to fail RPF checks for the source
  4. The multicast network dynamically elects the RP instead RTA failed RPF check for BSR

Answer(s): A,B,C,D



Regarding Route Policy, is the following description correct?

  1. Advanced ACLs can be applied in route-policy to filter routes
  2. The table entries pernit::0 Less an equal 128 indicate that all IPV6 routes are allowed through
  3. If more than one node is defined in Route one policy, there should be at least one node in each node that matches permit
  4. Route one policy filters only the default route

Answer(s): B,C,D



In an Hw IP multicast network--which of the following multicast features are associated with (*, G) table entries? ( Multiple select)

  1. Dense mode
  2. Source tree
  3. Sparse mode
  4. PIM bidirectional
  5. Share the tree
  6. Dense Tree

Answer(s): C,D,E



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