Free Access H3C.GB0-371-ENU.v2022-08-24.q110 Practice Test (Page 23)

Question 106

Two routers are connected together through a LAN to form a VRRP backup group, and the configuration on each interface is as follows:
[RTA-GigabitEthernet1/0]display this
ip address 192.168.0.252 255.255.255.0
vrrp vrid 1 virtual-ip 192.168.0.254
vrrp vrid 1 priority 120
vrrp vrid 1 preempt-mode
vrrp vrid 1 track interface serial0/1 reduced 30
[RTB-GigabitEthernet1/0]display this
ip address 192.168.0.253 255.255.255.0
vrrp vrid 1 virtual-ip 192.168.0.254
vrrp vrid 1 preempt-mode
If a DoWN/UP event occurred on the RTA serial port Serial0/1 during network operation, you can know

A.During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes once

B.During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes twice

C.During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes 3 times

D.During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request will not change

Question 107

The configuration command to enable the global GVRP function on H3C series switches is

A.GVRP

Question 108

The topology is shown in the figure, and the STP calculation is performed. The correct result is

A.SWC will forward configuration BPDUs from port E0/3 to SWD

B.SWD port E0/2 is the root port

C.SWB port E0/2 is the designated port

D.SWA is the root bridge in the network

Question 109

Regarding the working principle of IGMP-Snooping, the correct one is

A.Layer 2 devices rely on IGMP-sliooping to listen to IGMP messages and maintain multicast address forwarding entries at Layer 2.

B.By listening to IGMPReport messages, IGMP-Snooping adds ports to known multicast groups or creates new multicast forwarding entries

C.IGMP-Snooping determines the routing port by listening to IGMPQuery messages

Question 110

Regarding loop protection, the following statements are correct

A.In MSTP, this function is valid for root port, alternate port and backup port

B.After the loop protection function is activated, when the BPDU saved on the port ages, the loop protection takes effect

C.Link congestion or single link may cause loops

D.If the role of the root port changes, it will become the Discarding state, without forwarding packets, so that no loop will be formed in the network. The Discarding state will be maintained until the port receives the BPDU again and becomes the root port again.

Other Version: 2977H3C.GB0-371-ENU.v2022-04-18.q117

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Question 106

Question 107

Question 108

Question 109

Question 110

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