Application of the two-speed double-barrel in traffic policing, the number of tokens in the C bucket is TC, a number of tokens in P bucket is TP. When a packet of length B enters, which of the following statements is correct? (Multiple choice)

• A.If TP-B>0 and TC-B>0, the packet is marked as green.
• B.If TP-B>0 and TC-B<0, the packet is marked as yellow.
• C.If TP-B>0 and TC-B<0, the packet is marked as green.
• D.If TP-B<0 and TC-B<0, the packet is marked as red.

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An engineer performs an import operation on an OSPF router in a company network. The following statement about the introduction of a route LSA, which is correct? (Multiple Choice)

• A.netmask is set to 0
• B.The Advertising Route is set to the router-id of the ASBR.
• C.Use link state id and advertising router to uniquely identify an LSA
• D.link state id is set to the destination network segment address

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If you run the PM-SM protocol on the multicast network, you need to configure the RP. The configuration mode of the RP is classified into dynamic RP and static RP. Which of the following description of the RP configuration is correct?

• A.When configuring a dynamic RP, you do not need to configure a BSR.
• B.When configuring a static BP, you need to specify the RP information on all PIM routers.
• C.When configuring a dynamic RP, you need to configure the BSR as the backup of the RP.
• D.When configuring a static RP, you need to configure the BSR advertisement RP information.

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Which of the following statements about the BSR mechanism are true? (Multiple Choice)

• A.An elected BSR floods Bootstrap packets to advertise BSR information and C-RP information to all routers in a PIM-SM domain.
• B.A PIM-SM domain can have multiple C-BSRs, but only one elected BSR.
• C.An elected BSR can collect C-RP information by using the C-RP packets received.
• D.A C-BSR can also collect C-RP information by using C-RP packets.

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If there are multiple receivers in a multicast group, the administrator enables IGMP-Snooping on the switch that connects the receivers. After the receiver receives the general group query message from the querier, how do multiple recipients respond?

• A.Only when IGMPv1 is running, all receivers respond to the Report message.
• B.Only the IGMPV2 is running, and all receivers respond to the Report message.
• C.All recipients will respond to the Report message.
• D.The first responder with a response timeout sends Report message, and the other recipients do not send it.

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