GB0-371-ENU 무료 덤프문제 온라인 액세스

Which of the following protocols are multicast routing protocols running between routers and routers?

• A.IGMPV2
• B.DVMRP
• C.MLD
• D.MOSPF
• E.PIM

Regarding root bridge protection, the following statements are correct:

• A.After the root bridge protection is configured, the ports receive high-priority BPDUs, and the status of these ports will be set to Listening and no longer forward packets
• B.Root bridge protection is configured in port view
• C.When root bridge protection is not configured, the root bridge will lose its status as the root bridge if it receives a higher priority BPDU
• D.The port will undergo a transition from the Listening state to the Forwarding state. During this period, if the port does not receive a better BPDU, the port will resume its original forwarding state.

Which of the following descriptions about the IP address of the VLAN interface of the H3C Layer 3 switch is correct?

• A.You must delete the secondary IP address before deleting the primary IP address of the VLAN interface
• B.Only when two or more VLAN interfaces are configured with IP addresses can the switch have the function of Layer 3 routing and forwarding
• C.As long as an IP address is configured for a VLAN interface, the switch has a three-layer routing and forwarding function
• D.When configuring the primary IP address for the VLAN interface, if there is already a primary IP address on the interface, you must delete the original primary IP address to configure a new primary IP address

In the network as shown in the figure, the corresponding configuration is completed on the switch SWA, and the switch SWA and each PC have learned the corresponding ARPPCA to access the PCB and send the ICMP request message, and the switch SWA forwards this MAC address to the PCB as

• A.MAC20
• B.0000.0000.0000
• C.MAC10
• D.MAC_A

The customer's LAN switch SWA is connected to SWB through Gigabitthem 2/0/1, and to SWC through GigabitEthernet 2/0/2, and the S\NA switch has the following configuration:
[SWA]smart-link group 1
[SWA-smlk-group1 ]protected-vlan reference-instance 0 to 32
[SWA-smlk-group1]port gigabitethernet 2/0/1 slave
[SWA-smlk-group1]port gigabitethernet 2/0/2 master
[SWA-smlk-group1 ]flush enable control-vlan 10
If the interconnection interfaces of switch SWA, switch SWB, and switch SWC allow all VLANs to pass, you can know from the above information

• A.Under normal circumstances, SWA switch traffic will be uplinked through Gigabitethernet 2/0/2
• B.Under normal circumstances, SWA switch traffic will be uplinked through Gigabitethernet 2/0/1
• C.If the Gigabitethernet 2/0/1 port fails, the SWA switch will broadcast flush packets in all VLANs
• D.If the Gigabitethernet 2/0/2 port fails, the SWA switch will broadcast flush packets in all VLANs