Free Huawei H31-161 Exam Dumps Questions & Answers

OSPF BFD helps fast detect neighbor down events. OSPF BFD can be in which of the following states?

• A.Attempt
• B.2-way
• C.Established
• D.Up
• E.Down
• F.Init

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

• A.The RP unicast a registration stop message to the first router connection to the multicast source.
• B.The RP encapsulates registration information and uses RTP to send data packet to be sent to the multicast group to the outbound interface.
• C.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.
• D.The first hop DR connecting to the source encapsulate received multicast into PIM registration information and unicast the encapsulated information to the PR.
• E.The first-hop RD connecting to the source sends received multicast data to the RP ho[p by hop.

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 forward and 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.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.
• C.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 result may be reported or missed.
• D.In BFD for MPLS LSP, LSP Ping is used to negotiate the identifier and parameters of a BFD session.

Which statements about the edge access layer is true?

• A.It connections users to the network by providing various access means, and converts the format of information can be transmitted on the network.
• B.It implement call control. With the software technology as the core, it completes basic real-time call control and connection control.
• C.Using the packet technology it provides a comprehensive transport platform that boasts high reliability, quality of service (QoS) assurance, and large capacity.
• D.It process additional value-added service and operation support for established callas.

Exhibit:

The preceding information shows the configurations of Ethernet 6/1/1 and ensure created based on received IGMPv2 Report messages. Which action does Ethernet 6/1/1 after receiving Leave messages for group 224.1.2.3?

• A.Deletes the record of group 224.1.2.3
• B.Sends group-specific query messages for group 224.1.2.4