GB0-371-ENUの無料問題集（337題）、GB0-371-ENU認定試験参考書

H3C GB0-371-ENU 問題集

試験コード：GB0-371-ENU

試験名称：Constructing H3C High-Performance Campus Networks

最近更新時間：2025-01-05

問題と解答：全337問

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質問 1：
In the switching network as shown in the figure, all three switches have only default VLAN1, the interconnection ports of the three switches are Trunk, and all VLANs are allowed to pass, and the three switches have the global and port GVRP functions enabled. VLAN 10 is created on the switch SWA, VLAN 20 is created on the switch SWC, and the GVRP registration mode of the Ethernet 1/0/1 port is set to Forbidden on the switch SWA, and the display vlan SWC is executed on the SWC. The existing VLANs on SWC are available (choose one or Multiple)

A. VLAN20
B. VLAN 10
C. VLAN 1
正解：A,C

質問 2：
What is correct about IGMP Snooping?
A. The unknown multicast group dropping function can be enabled on the switch. When the switch receives unknown multicast data packets, it will only forward to its router port and not broadcast in the VLAN.
B. Both IGMP & IGMP Snooping can be configured in the same VLAN
C. Port quick leave means that when the switch leaves the IGMP Leave message, it directly deletes the port from the outgoing port list of the corresponding forwarding entry
D. Using the iIGMP Snooping function on the Layer 2 device can establish and maintain multicast forwarding entries at the data link layer, so that multicast data can be forwarded normally at the data link layer
正解：A,C

質問 3：
The figure shows the stable topology after STP calculation and convergence, then the following statements are correct:

A. SWA is the root bridge in the network
B. The BPDU is a configuration BPDU, the destination address is 01-80-C2-00-00-0
C. The sending period of this BPDU is HelloTime
D. The port saves the aging time of the BPDU as MaxAge
正解：A,B,C,D

質問 4：
The configuration command to enable the global GVRP function on H3C series switches is
A. GVRP
正解：A

質問 5：
Regarding the bridge ID of STP, which statement is correct?
A. The bridge with the smallest bridge ID in the network will eventually become the root bridge after STP calculation
B. The MAC addresses of SWA and SWB are 00-E0-FC-00-00-11 and 00-E0-FC-11-00-11, and the priority of the two are 32768 and 4096 respectively. When SWA and SWB are used After ring networking and spanning tree protocol is enabled, SWA will become the root bridge
C. The length of the bridge priority field is 2 bytes, so the value range of the bridge priority is 0-65535
D. Bridge ID is composed of bridge MAC address and priority field. When comparing bridge ID, compare the MAC address first. The smaller MAC address value is preferred.
正解：A

質問 6：
In the switching network as shown in the figure, VLAN10 is set as Super VLAN on switch SWA, VLAN2 and VLAN3 are Sub VLAN of VLAN10, port Ethernet1/0/3 is Trunk port, PVID is VLAN1, allowing all VLANs to pass through; Create VLAN2~VLAN20 on SWB, port Ethernet1/0/4 as Trunk port, PVID is VLAN1, allowing all VLANs to set the IP address of each device as shown in the figure, check the MAC address table on SWA, you can judge PCC belongs to

A. VLAN 10
B. VLAN 3
C. VLAN 1
D. VLAN 2
正解：D

質問 7：
The following statements about RP selection in PIMSM are correct:
A. Different RPs must be selected for two different multicast groups
B. First compare the priority of C-RP, the higher priority wins
C. Finally compare the C-RP addresses, the one with the larger value wins
D. Compare the hash value calculated by the Hash function, the larger value wins
正解：B,C,D

質問 8：
What is correct about the interoperability between Sub VLANs in SuperVLAN technology?
A. Layer 2 isolation between hosts in different SubVLANs, Layer 3 can communicate with each other through the local proxy ARP technology of the Super VLAN interface
B. Host IP addresses in different SubVLANs belong to the same network segment, and they can communicate directly with each other through Layer 2 forwarding
C. The hosts in different SubVLANs are isolated at the second layer, and the third layer can communicate with each other through the ordinary proxy ARP technology of the Super VLAN interface
D. Host IP addresses in different SubVLANs belong to the same network segment, but due to the isolation effect of Sub VLANs, it is impossible to achieve intercommunication between Sub VLANs.
正解：A

質問 9：
In the PIM-DM networking, about the router sending Prune (prune) message, the description is correct:
A. When the outgoing interface list in the router (S, G) table entry is empty, Prune messages will be sent to all PIM neighbors
B. After the router interface receives the Prune message, it will no longer send packets of the corresponding multicast group on this interface
C. Assert (assertion) the losing party will send to the winning party
D. When the router has no local directly connected multicast receivers, it will send Prune to all PIM neighbors
正解：C

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H3C Constructing H3C High-Performance Campus Networks 認定 GB0-371-ENU 試験問題:

1. As shown in the networking, SWB and SWC enable STP, SWC is the root, SWA does not enable STP, initially Link 2 is not connected, PCB can send data to PCA, if Link 1 fails at this time, maintenance personnel will link 2 is connected, the statement about the recovery process of the PCB to PCA data transfer service is correct (assuming that the PCA will not actively send data)

A) Since SWA does not enable STP, service recovery needs to wait for the MAC address of SWC to age, which takes 300 seconds by default
B) The SWB port E0/1 enters the Forwarding state to trigger the topology change process, which shortens the MAC address aging time, so the business recovery from PCB to PCA requires a total of 45 seconds by default.
C) SWB port E0/1 needs to wait for the default 30 seconds to enter the forwarding state, so the business recovery from PCB to PCA requires a total of 30 seconds by default
D) SWA port E0/1 will not send TCN BPDUs to SWC after the link is interrupted

2. In the network connection as shown in the figure, SWA and SWB enable STP and Loopback-detection at the same time. Please confirm that the port status description of SWA and SWB is correct.

A) STP detects the existence of a loop between G1/0/2 or G1/0/3 of SWB and blocks one of them
B) G1/0/1 of SWA may be blocked by STP detecting the existence of a loop
C) Between G1/0/2 and G1/0/3 of SWB, loopback-detection detects the existence of a loop and blocks one of them

3. Which of the following aspects should be considered for the security of the campus network?

A) Effective access control
B) Effectively identify legal and illegal users
C) Protect the physical circuit
D) Effective management of network equipment and network topology

4. Regarding the generation of TCN BPDUs, which of the following statements are correct

A) If the designated port link of a switch in the network is broken, the switch must generate TCN BPDUs
B) When a port of the switch is selected as the designated port or root port, the switch will immediately send TCNBPDU
C) If the Alternate port link of a switch in the network is broken, the switch will not generate TCN BPDUs
D) STP-enabled non-root bridge switch If a port is connected to a PC, when the port enters the Forwarding switch, no TCN BPDU will be generated

5. In the switching network as shown in the figure, VLAN10 is set as Super VLAN on switch SWA, VLAN2 and VLAN3 are Sub VLAN of VLAN10, port Ethernet1/0/3 is Trunk port, PVID is VLAN1, allowing all VLANs to pass through; Create VLAN2~VLAN20 on SWB, port Ethernet1/0/4 as Trunk port, PVID is VLAN1, allowing all VLANs to set the IP address of each device as shown in the figure, check the MAC address table on SWA, you can judge PCC belongs to

A) VLAN 10
B) VLAN 3
C) VLAN 1
D) VLAN 2

質問と回答：

質問 # 1
正解： B、D

質問 # 2
正解： A

質問 # 3
正解： A、B、C、D

質問 # 4
正解： C

質問 # 5
正解： D