H3C GB0-372-ENU actual dump : H3CSE-RS-SW

XYZ company's two LANs are located in different regions and are interconnected through the operator's network. The network topology is shown in the figure. Switches SWC and SWD are the company's network edge devices, and switches SWA and SWB are the operator's network edge devices.
Hosts PCA and PCB are located in VLAN2 of the company's network. The operator network assigns VLAN tags to XYZ company's data packets passing through it. Under normal circumstances, the port that needs to enable the Qinq function is? (Multiple choice)

• A. Ethernet 1/o/2 of switch SWA
• B. Ethernet 1/0/2 of switch SWB
• C. Ethernet 1/0/1 of switch SWA
• D. Ethernet1/0/1 of switch SWB

Which of the following statements about PIM SM is correct? (Multiple choice)

• A. RP will forward multicast traffic downstream only after receiving multicast data forwarded by the multicast source
• B. Before the multicast traffic is forwarded from the RP to the multicast receiver, all routers along the way have established (*, G) entries.
• C. Upon receiving a registration message from a multicast source, the RP sends a join message to the multicast source and generates an (S, G) entry only when it receives normal multicast traffic from the multicast source.
• D. When a multicast source initially sends traffic, an (S, G) entry is formed on the DR connected to it.

As the basis for the implementation of the SNMP protocol, the managed objects in the MIB can be identified by object name or OID. Which of the following descriptions of the managed objects are correct? (Multiple choice)

• A. The nodes in MIB are divided into leaf nodes and non-leaf nodes. Non-leaf nodes cannot be accessed.
• B. The managed object exists in the form of a node, which can be represented by either object name or OID, and the two are mapped one to one.
• C. Scalar nodes only have read attributes, not write attributes
• D. Leaf nodes are divided into table nodes and scalar nodes. When the network management workstation accesses a leaf node, it must add the instance ID after the corresponding OID of the leaf node.

Which of the following statements about the DR election process of PIMSM shared network segment is correct? (Multiple choice)

• A. If the priorities of the Hello messages are the same, the router with the larger RouterID of the shared network segment will become the DR of the network segment.
• B. When electing a DR, the priorities of the Hello messages are compared first. The router with the highest Hello message priority will become the DR of the network segment.
• C. If the priorities of the Hello messages are the same, the router with the larger IP address of the shared network segment interface will become the DR of the network segment.
• D. After electing the DR, the BDR is elected. When the DR fails, the BDR quickly takes over its work to ensure the normal forwarding of multicast traffic.

The customer LAN switches SWA, SWB, SWC, and SWD form the RRPP ring main ring 1. Switch SWD is connected to switches SWB and SWC, but not to switch SWA.
The switch SWD has the following configuration information:
[SWD] rrpp domain 1
[SWD-rrpp-domain 1] ring 1 node-mode transit primary-port gigabitethernet 2/0/1 secondary-port Gigabitethernet 2/0/2 level 0 If switch SWA is the master node of primary ring 1, and if switch SWD port GigabitEtherent2/0/1 fails, what can we learn from the above information?

• A. The switch SWC immediately switches to the Failed state and releases the secondary port.
• B. If the switch SWD finds that the port GigabitEthernet2/0/1 is Up again, it will immediately unblock the port.
• C. SWA will send a Link-Down message to notify all nodes
• D. The switch SWA immediately switches to the Failed state and releases the secondary port