Online Access Free Huawei.H31-161.v2022-03-03.q85 Practice Test (Page 3)

H31-161 Exam Question 6

Refer to the exhibit.

As shown in the figure, RT 5 is a stub area router, an external Internet route is imported by RT 1, and a virtual connection is established between RT 1 and RT 3.At present, the Internet is accessible to routers except RT 5. Why can the Internet not be accessed from RT 5?(Select two answers)

A.The cost of the link between RT 1 and RT 3 is excessively large.

B.A stub area cannot be connected using a virtual link.

C.Category 5 LSAs cannot be sent in a stub area.

D.RT1 does not inform RT 5 that category 3 LSAs are configured by default.

H31-161 Exam Question 7

When the multicast source starts to send multicast data and no receiver joins in the RP in PIM-SM, which of the following statements are true?

A.After receiving a registration message, the RP creates the multicast routing entries (*, G) of all source groups and sends a register stop message to the source DR.

B.The RP receives a registration message from the source DR, creates a multicast routing entry (S, G), and sends a register stop message to the source DR.

C.After the source DR unicasts registration information to the RP, the multicast routing entries (S, G) of all source groups are generated in the RP but the outbound interface is null.

D.After all sources unicast registration information to the RP, no multicast route entries related to source groups are generated due to receiver absence.

H31-161 Exam Question 8

Which of the following statements about BFD for MPLS LSP are true?

A.An MPLS LSP may be unidirectional .If BFD packets are transmitted along an MPLS LSP in the
forward direction., these packets may be forwarded over IP in the reverse direction. Then the
forwardand reverse paths of a packet may be different As a result, when a fault occurs on the reverse
path, BFD detects and reports the fault even if the MPLS LSP is normal.

B.In BFD for MPLS LSP, LSP Ping is used to negotiate the identifier and parameters of a BFD session.

C.BFD for MPLS LSP detects faults only on the forwarding plane. LSP Ping, however, can not only detect
faults on the forwarding plane, but also find out inconsistencies between the forwarding plane and the
control plain- Therefore, they are often combined for a better fault detection solution.

D.If MPLS LSPs work in load balancing mode, a BFP session should be triggered on each LSP in
principle. Only one BFD session. however, can be initialed for load-balancing MPLS LSPs to an
intermediate node In this case, the forwarding path ol BFD packets may be different from what
expected. As a resultmay be reported or missed.

H31-161 Exam Question 9

If a (*, ) entry exists in the RP, Which of the following statements about the source registration are true in
PIM_SM?

A.The RP encapsulates registration information and uses RTP to send data packet to be sent to the
multicast group to the outbound interface.

B.The RP unicast a registration stop message to the first router connection to the multicast source.

C.The first hop DR connecting to the source encapsulate received multicast into PIM registration
information and unicast the encapsulated information to the PR.

D.The first-hop RD connecting to the source sends received multicast data to the RP ho[p by hop.

E.The RP sends an (S, G) join message hop by hop to the first hop DR connected to the multicast source to
add the multicast source to the SPT.

H31-161 Exam Question 10

Which of the following are conditions for bringing the remote CCC connection Up? (ABE)

A.If a next hop is specified in CCC configuration, a route to the next hop is available.

B.MPLS is enabled on the outbound interface of the public network.

C.The interface that is bound to a CCC connection is physically Up.

D.MPLS LDP is enabled on the outbound interface of the public network.

E.If an outbound interface is specified in CCC configuration, the outbound interface is Up.

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H31-161 Exam Question 6

H31-161 Exam Question 7

H31-161 Exam Question 8

H31-161 Exam Question 9

H31-161 Exam Question 10

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