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Certification Exams with Helpful Questions And Answers

HCIE-Carrier IP (Written) Questions and Answers

Question 1

As shown in the figure, RTA, RTB, RTC are interconnected over IS-IS, RTA,

RTD, RTE, and RTC are interconnected over OSPF. Both IS-IS and OSPF use the default costs. RSVPTE is enabled on all routers and the interfaces between these routers. The Loopback0 interface of RTC is 192.168.0.3/32 and is advertised in both OSPF and ISIS areas. 192.168.0.3/32 is also the LSR ID of MPLS. Configurations of the MPLS and tunnel on RTA:

#

mpls lsr-id 192.168.0.1

mpls

mpls te

mpls rsvp-te

mpls te cspf

interface Tunnel1/0/0

tunnel-protocol mpls te

destination 192.168.0.3

mpls te tunnel-id 1

mpls te path metric-type igp

mpls te igp metric absolute 1

mpls te commit

#

Which path will be selected when the tunnel becomes Up? What is the metric of this tunnel?

Options:

A.

RTA—RTB—RTC; 1

B.

RTA—RTD—RTE—RTC; 1

C.

RTA—RTB—RTC; 20

D.

RTA—RTD—RTE—RTC; 3

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Question 2

Which statement is false?

Options:

A.

The ASM multicast forwarding model does not allow the receiver to specify a multicast source.

B.

The PIM SSM multicast routing protocol cannot set up shared multicast forwarding trees.

C.

The SSM multicast forwarding model considers an (S,G) entry as one channel.

D.

The IGMP SSM Mapping function is to map a (*,G) Join message reported by the host to an (S,G) Join messag

Question 3

Which statement about the MPLS LSP Ping is true?

Options:

A.

The LSP Ping Echo request must contain the downstream mapping TLV

B.

A unique Sender's Handle is generated during each LSP Ping operation

C.

A unique sequence number is generated during each LSP Ping operation

D.

The LSP Ping Echo request may contain the FEC stack TLV