<Quidway>display igmp group
IGMP interface group report information of VPN-Instance: public net
Ethernet6/1/1(40.1.1.1):
Total 1 IGMP Group reported
Group: 232.0.0.1
Uptime: 00:00:22
Expires: off
Last reporter: 40.1.1.3
Last-member-query-counter: 0
Last-member-query-timer-expiry: off
Group mode: include
Source list:
Source: 20.1.1.56
Uptime: 00:00:22
Expires: 00:05:08
Last-member-query-counter: 3
Last-member-query-timer-expiry: 00:00:01
Source: 20.1.1.57
Uptime: 00:00:22
Expires: 00:00:17
Last-member-query-counter: 3
Last-member-query-timer-expiry: 00:00:01
The preceding information shows the entry states in the IGMP interface table on Ethernet 6/1/1.
Which statement is true when IGMP sends source/group query messages?

• A.IGMP sends one message in which the multicast sources are 20.1.1.56 and 20.1.1.57 and the S flag is set to 1.
• B.IGMP sends two messages. In one message, the multicast source is 20.1.1.56 and the S flag is set to 1. In the other message, the multicast source is 20.1.1.57 and the S flag is not configured.
• C.IGMP sends one message in which the multicast sources are 20.1.1.56 and 20.1.1.57 and the S flag is not configured.
• D.IGMP sends two messages. In one message, the multicast source is 20.1.1.56 and the S flag is not configured. In the other message, the multicast source is 20.1.1.57 and the S flag is set to 1

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As shown in the figure, for SWA, Eth0/2 belongs to VLAN 2, and Eth0/24 (PVID = 2) is a trunk interface and permits packets from VLAN 2 and VLAN 3 to pass through; for SWB, Eth0/2 belongs to VLAN 2, Eth0/3 belongs to VLAN 3, and Eth0/24 (PVID) is a trunk interface and permits packets from VLAN 2 and VLAN 3 to pass through. Which statement is true?

• A.PC A can ping neither PC B nor PC C.
• B.PC A can ping PC C instead of PC B.
• C.PC A can ping both PC B and PC C.
• D.PC A can ping PC B instead of PC C.

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Exhibit.

As shown in the figure, external route 1.1.1.0/24 is imported to RTA that is located in the NSSA area RTD is a
backbone area router. RTB and RTC are both area border router (ABRs). OSPF configuration are as follows.

Which statement is true?

• A.RTD receive two external LSAs whose LS_ID is 1.1.1.0
• B.RTD receive an external LSAs whose LS_ID is 1.1.1.0 and advRouter is 3.3.3.3.
• C.RTD receive an external LSAs whose LS_ID is 1.1.1.0 and advRouter is 2.2.2.2.
• D.RTD receive an external LSAs whose LS_ID is 1.1.10/24 based on category 7 LSAs sent by RTA

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In MPLS QoS , traffic policies are developed on simple traffic classified and complex traffic classification
policies based on simple traffic classification the service class color, and drop priority of packet are reset based
on the packet in the traffic policies on complex traffic classification measures such as traffic classification is
applied on border routers in Different domain, and traffic classification core routers. QoS policies are
configured by performing the following operations:
* Defines DiffSer domain and configuring a traffic policy.
* Classification traffic
* Defines traffic behavior and configures characteristics ofbehaviors.
* Defines a traffic policy and specifies for trafficcategories
* Applies the traffic policy
* Configure L-LSP
* Configures reserve address checks
* Adds interface to the DiffSer domain
Which of theproceedingoperations are required when you configured simple traffic classification?

• A.2 3 4 8
• B.2 4 5 7
• C.1 6 8
• D.1 5 6

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Which of the following statements about the VPLS packet forwarding are true?

• A.If the destination MAC address of a packets is not a broadcast address and a PE has not learned the
  MAC address, the PE broadcast this packet in on VSI.
• B.If the destination MAC address of a packet is not a broadcast address and a PE has not learned the MAC
  address, the broadcast this packet in one VSI
• C.If a PE receives broadcast packets from a local user, the PE forwards the packets to all other interfaces
  In the same VSI and all other PEs.
• D.If a receive broadcast packet sent a remote PE, it forwards the packet only to the AC interface instead of
  other PEs.

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