#
interface Ethernet6/1/1
ip address 40.1.1.4 255.255.255.0
igmp prompt-leaveigmp enable
pim sm
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IGMP interface group report information of VPN-Instance: public net
Ethernet6/1/1(40.1.1.4):
Total 1 IGMP Group reported
Group: 224.1.2.3
Uptime: 00:00:32
Expires: 00:04:38
Last reporter: 30.1.1.30
Last-member-query-counter: 0
Last-member-query-timer-expiry: off
The preceding information shows the configurations of Ethernet 6/1/1 and entries created based on received IGMPv2 Report messages. Which action does Ethernet 6/1/1 perform after receiving Leave messages for group 224.1.2.3?

• A.Sends group-specified query messages for group 224.1.2.3.
• B.Both A and B are correct.
• C.Deletes the record of group 224.1.2.3.
• D.Neither A nor B is correct.

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Refer to the exhibit.

As shown in the figure, DUT stands for the device under test and RTA is used to support the test.What is the correct procedure of a fast convergence test? ( )
1. Read data from the tester, record the numbers of sent and received packets, and count the number of lost packets.2. Switch the DUT-to-RTA background traffic to the link whose metric value is 100.3. DUT-to-RTA background traffic is forwarded along the link whose metric value is 10.4. Use the tester to advertise 10K routes to RTA and inject 10K flows to the DUT (each flow takes one route).5. Remove the optical fiber (providing a link whose metric value is 10) from the tester.6.
Calculate the convergence time based on the number of lost packets and packet sending rate.7.
Stop forwarding traffic when the packet receiving rate is equal to the packet sending rate.

• A.3, 4, 5, 7, 2, 1, 6
• B.1, 2, 3, 4, 5, 6, 7
• C.3 5 4 2 1 6 7
• D.4, 3, 5, 2, 7, 1, 6

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Refer to the exhibit.

As shown in the figure, Border Gateway Protocol (BGP) is used to
advertise VPN routes between PE 1 and PE 2.BGP process 100 is started on PE 1 and BGP process 200 is started on PE 2.OSPF is used between a PE and a CE and between CE 1 and CE 2 within area 1.To avoid routing loops, which of the following route tag configurations is true? (Note: 0Xd0000000=3489660928)

• A.Configure the route tag to 3489661028 on PE 1 and leave it blank on PE 2.
• B.Configure the route tag to 100 on PE 1 and to 200 on PE 2.
• C.Configure the route tag to 100 on PE 2 and to 200 on PE 1.
• D.Configure the route tag to 3489661128 on PE 1 and leave it blank on PE 2.

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When a PW works in RAW mode, which of the following statements are true?

• A.When the VSI uses Ethernet for encapsulation, the VLAN tag in a packet sent from a CE to its nearby PE must be reserved when the packet reaches a VPLS domain, and whether the packet needs to be encapsulated at the egress of the VPLS domain must be determined based on the encapsulation mode used on the peer AC.
• B.When the VSI uses Ethernet for encapsulation, the VLAN tag in a packet sent from a CE to its nearby PE must be removed when the packet reaches a VPLS domain, and whether the packet needs to be encapsulated at the egress of the VPLS domain must be determined based on the encapsulation mode used on the peer AC.
• C.When the VSI uses Ethernet for encapsulation, a packet sent from a CE to its nearby PE must be added with a VLAN tag when the packet reaches a VPLS domain, and whether the packet needs to be encapsulated at the egress of the VPLS domain must be determined based on the encapsulation mode used on the peer AC.
• D.When the VSI uses Ethernet for encapsulation, a packet sent from a CE to its nearby PE does not need to be added with a VLAN tag when the packet reaches a VPLS domain, and whether the packet needs to be encapsulated at the egress of the VPLS domain must be determined based on the encapsulation mode used on the peer AC.

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Exhibit:

As shown in the figure, OSPF process 100 runs on both PEs and CEs, and VPN routers are transmitted between PE 1 and PE 2 through PGB CE 1 enables interface address 43.1.1.0/24 in area 0.A route to 43.1.10/24. However, does not exist in the routing table of CE 2. What are the possible causes?

• A.The LSDB of PE 12 does not have the type 1 LSA generated by CE 1.
• B.The VPN route to 43.1.1.0/24 does not exist in the routing table of PE 2.
• C.The LSDB of PE 1 does not have the type 1 LSA generated by CE 1.
• D.The public network rout to 43.1.1.0/24 does not exist in the routing table of PE2
  .

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