[Dec 07, 2021] Fully Updated H3CSE-Routing & Switching (GB0-371-ENU) Certification Sample Questions
Latest H3C GB0-371-ENU Real Exam Dumps PDF
NEW QUESTION 14
The following statements about the PIM SM joining process are correct.
- A. When there is no receiver of multicast group G in the DR, the DR will send a pruning message to the upstream router
- B. Both PIMSM and PIM DM have a pruning veto process
- C. If there are still receivers in the shared network segment under the interface where the upstream router receives the pruning message, the receiver will send a group join message
- D. As long as the DR has a local receiver of multicast group G, the DR will periodically send join messages upstream
Answer: A,B,C,D
NEW QUESTION 15
In the network shown in the figure, the corresponding configuration is completed on the switch SWA, and the switch SWA and each PC have learned that the corresponding ARPPCA sent an ICMP request message when accessing the PCB, and the destination MAC address of the message is _
- A. FFFF.FFFF.FFFF
- B. MAC-20
- C. MAC-B
- D. MAC-10
Answer: D
NEW QUESTION 16
Regarding the relationship between SuperVLAN and Sub VLAN, the following description is correct
- A. Although physical ports cannot be included in SuperVLAN configuration, after the mapping relationship between Super VLAN and Sub VLAN is established, the physical ports included in SubVLAN belong to Super VLAN
- B. Sub VLAN only contains physical ports, and the internal host uses the address of the Super VLAN interface as the gateway
- C. SuperVLAN only establishes Layer 3 interfaces, responsible for Layer 3 forwarding of Sub VLAN
- D. SuperVLAN is equivalent to aggregating Sub VLANs so that all Sub VLANs share the same Layer 3 interface
Answer: B,C,D
NEW QUESTION 17
The advantages of modular network architecture include (choose one or more)
- A. Each module can be planned and deployed separately. The function of the network can be added or removed by adding or deleting modules, which is conducive to building a complex network
- B. It replaces the traditional hierarchical network model to facilitate network planning and deployment
- C. It is allowed to dynamically call IT resources through open interfaces to realize a standard, compatible, safe, intelligent and manageable IT application environment
- D. Allow different application functions or application systems to share data, resources and capabilities, and participate in business processes
Answer: A
NEW QUESTION 18
Regarding the MSTP BPDU format, the correct statement is
- A. The number of MSTI configuration messages is determined by the number of VLANs
- B. MSTI configuration message is used for MSTI spanning tree calculation
- C. IST calculation only requires the value in the MST proprietary field
- D. The MST configuration ID field is used to determine whether the switch belongs to the same MST region
Answer: B,D
NEW QUESTION 19
The figure shows the networking application of SmartLink and Monitor Link cascading. The Smart Link group on the switch SWH serves as the upstream port of the Monitor Link group on the switch SWH, and the opposite port of the downstream port of the Monitor Link group is the switch SWJ Smart Link group. The main port switch SWH upstream SWD and SWE ports are Smart Link group ports. It can be known from the above information
- A. The switch SWH uplink switch SWE link is Down, then the main port of the switch SWJSmart Link group will be switched to the secondary port
- B. Switch SWJSmart Link group status has nothing to do with switch SWH
- C. Switch SWH uplink switch SWD and SWE links are in Down state, then the main port of the switch SWJSmart Link group will be switched to the secondary port
- D. Switch SWH upstream switch SWD link is Down, then the main port of the switch SWJSmart Link group will be switched to the secondary end
Answer: C
NEW QUESTION 20
The topology is shown in the figure, and the STP calculation is performed. The correct result is
- A. SWD port E0/2 is the root port
- B. SWC will forward configuration BPDUs from port E0/3 to SWD
- C. SWB port E0/2 is the designated port
- D. SWA is the root bridge in the network
Answer: B,C,D
NEW QUESTION 21
The following statements about RP selection in PIMSM are correct (choose one or more)
- A. First compare the priority of C-RP, the higher priority wins
- B. Compare the hash value calculated by the Hash function, the larger value wins
- C. Finally compare the C-RP address, the one with the smaller value wins
- D. Finally compare the C-RP addresses, the one with the larger value wins
Answer: A,B,D
NEW QUESTION 22
In the networking shown in the figure, the PIM SM protocol runs between RT1, RT2 and RT3, the RP is 1.1.1.1, and there is a downstream receiver RT3 connected to a multicast source, check the RT3 unicast routing table as follows:
[RT3]display ip routing-table
Routing Tables: Public
Destinations: 10 Routes: 10
Destination/MaskProtoPreCost NextHop Interface
1.1.1.1/320SPF 10 1562 192.168.0.1 S0/2/0
127.0.0.0/8 Direct 00127.0.0.1 InLoopO
127.0.0.1/32Direct 00127.0.0.1 InLoopO
192.168.0.0/30Direct 00192.168.0.2 S0/2/0
192.168.0.1/32Direct 00192.168.0.1 S0/2/0
192.168.0.2/32Direct 00127.0.0.1 InLoopO
192.168.1.0/300SPF 10 3124 192.168.2.1 so/2/1
192.168.2.0/30Direct 00192.168.2.2 so/2/1
192.168.2.1/32Direct 00192.168.2.1 so/2/1
192.168.2.2/32Direct 00127.0.0.1 InLoopO
Then, after the RP sends the registration stop message, which of the following routers have (S, G) entries?
- A. RT2
- B. RT3
- C. RT1
Answer: B,C
NEW QUESTION 23
By viewing the IGMP group information, you can learn the following:
- A. Multicast group IGMP querier
- B. The address of the first host of the multicast group to send a Report message
- C. Multicast group information maintained by the router
- D. Number of multicast group Report packets
Answer: A,C,D
NEW QUESTION 24
In the switching network as shown in the figure, VLAN10 is set as Isolate-user-vlan on the switch SWA, VLAN2 and VLAN3 are the Secondary VLAN of VLAN 10; VLAN2? VLAN20 is created on the switch SWB, and VLAN20 is set as Isolate-user-vlan , VLAN4 is the Secondary VLAN of VLAN20. After setting the IP address of each device, check the MAC address table on SWA, it will show that the PCB belongs to (choose one or more)
- A. VLAN 10
- B. VLAN2
- C. VLAN3
- D. VLAN4
- E. VLAN20
- F. VLAN 1
Answer: A,C
NEW QUESTION 25
In the networking shown in the figure, the router's unicast routing table is as follows:
<H3C>display ip routing-table
Routing Tables: Public
Destinations: 9Routes: 9
Destination/MaskProtoPreCost NextHop Interface
10.1.1.0/30 Direct 0010.1.1.2S0/2/0
10.1.1.1/32 Direct 0010.1.1.1 S0/2/0
10.1.1.2/32 Direct 00127.0.0.1 InLoopO
11.1.1.0/30 Direct 0011.1.1.1 Eth0/110
11.1.1.1/32 Direct 00127.0.0.1 InLoopO
12.1.1.0/30 Direct 0012.1.1.1Eth0/1/1
12.1.1.1/32 Direct 00127.0.0.1 InLoopO
13.1.1.0/30 Direct 0013.1.1.1EthO/1/2
13.1.1.1/32 Direct 00127.0.0.1 InLoopO
100.1.1.0/240SPF 10 1563 10.1.1.1S0/2/0
127.0.0.0/8 Direct 00127.0.0.1 InLoopO
127.0.0.1/32Direct 00127.0.0.1 InLoopO
200.1.1.0/240SPF 10 212.1.1.2Eth0/1/1
Then, the multicast data that the receiver (Receiver) will receive is
- A. (100.1.1.1, 226.1.1.1)
- B. (100.1.1.1, 226.3.3.3)
- C. (200.1.1.1, 226.2.2.2)
Answer: A,C
NEW QUESTION 26
Regarding the configuration of bridge priority in spanning tree, the following statements are correct.
- A. If the switch is not configured with the priority of the bridge, the default value is 32768
- B. The smaller the priority value, the lower the priority of the bridge
- C. The priority of the bridge is 16 bits in total, and the value range is 0-65535
- D. The step size of bridge priority is 4096
Answer: A,D
NEW QUESTION 27
As shown in the networking, there is no connection between SWA and SWB at the beginning, and RSTP is enabled for SWA and SWB. When the topology is stable, connect the port E1/0/1 of SWA and SWB. Assuming that SWA will become the new root bridge, the following The correct statement is
- A. SWB does not need to generate BPDUs by itself, and the content of the Agreement message in response is copied from the Proposal message sent by SWA
- B. When SWB receives the Proposal message sent by SWA, it will immediately reply to the Agreement message
- C. When SWB receives the Proposal message sent by SWA, it will start the synchronization process to block the old root port, designated port and edge port
- D. Port E1/0/1 of SWA and SWB will send Proposal message to request to enter forwarding state
Answer: A,D
NEW QUESTION 28
The IP address of the host PCA is 40.1.1.1, and the MAC address is 0011.1111.1111. The PCA is connected to the GigabitEthernet1/0/1 port of the switch SWA. The following commands are configured on the switch SWA:
[SWA]vlan 10
[SWA-vlan10]quit
[SWA]vlan 20
[SWA-vlan20]protocol-vlan ipv4
[SWA-vlan20]quit
[SWA]vlan 30
[SWA-vlan30]quit
[SWA]mac-vlan mac-address 0011-1111-1111 vlan 30
[SWA]vlan 40
[SWA-vlan40]ip-subnet-vlan ip 40.1.1.0 255.255.255.0
[SWA-vlan40]quit
[SWA]interface GigabitEthernet 1/0/1
[SWA-GigabitEthernet1/0/1]port link-type hybrid
[SWA-GigabitEthernet1/0/1]port hybrid pvid vlan 10
[SWA-GigabitEthernet1/0/1]port hybrid vlan 10 20 30 40 untagged
[SWA-GigabitEthernet1/0/1]port hybrid protocol-vlan vlan 20 0
[SWA-GigabitEthernet1/0/1]port hybrid ip-subnet-vlan vlan 40
[SWA-GigabitEthernet1/0/1]mac-vlan enable
After the configuration is complete, it can be judged that PCA will join
- A. VLAN30
- B. VLAN20
- C. VLAN40
- D. VLAN 10
- E. The configuration command is incorrect
Answer: A
NEW QUESTION 29
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 will not change
- B. During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes once
- C. During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes twice
- D. During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes 3 times
Answer: C
NEW QUESTION 30
The figure shows the networking application of RRPP. The customer LAN switches SWA, SWB, SWC, and SWD form RRPP ring main ring 1, the switches SWB, SWC and SWE form sub-ring 2, and switches SWB, sWC and sWF form sub-ring 3. If The switch SWE is the master node of sub-ring 2, and SWF is the master node of sub-ring 3. It can be learned from the above information
- A. If sub-ring 2 and sub-ring 3 are added to the same ring group, the main ring link corresponding to the edge node and assistant edge node of sub-ring 2 and sub-ring 3 in the ring group should be the same
- B. Cannot add sub-ring 2 and sub-ring 3 to the same ring group
- C. If sub-ring 2 and sub-ring 3 are added to the same ring group, the edge node and assistant edge node of sub-ring 2 and sub-ring 3 in the ring group can be different
- D. If sub-ring 2 and sub-ring 3 are added to the same ring group, the ring group should be configured on the switch SWB, SWC, SWE, SWF, and the configuration should be consistent
Answer: A
NEW QUESTION 31
The customer's LAN switch SWA dual uplink connects the switch SWB and the switch SWC, and the link reliability is ensured through SmartLink. If the MAC address of the switch SWA device is 000f-e269-42d1 and the MAC address of the switch SWB device is 000f-e269-42d2, the switch The MAC address of the SWC device is 000f-e269-42d3 from the above information.
- A. When the switch SWA is connected to the switch SWB line failure, the purpose of the Flush packet sent by the switch SWA mac is 000f-e269-42d3
- B. When the switch SWA is connected to the switch SWB line failure, the purpose of the switch SWA to send the Flush message mac is 000f-e269-42d2
- C. None of the above answers are correct
- D. When the switch SWA is connected to the switch SWB line failure, the purpose of the Flush packet sent by the switch SWA mac is 000f-e269-42d1
Answer: C
NEW QUESTION 32
Which of the following statements about ring network technology is correct?
- A. RRPP (Rapid Ring Protection Protocol) is a network layer protocol specifically applied to Ethernet rings
- B. RRPR requires a dedicated hard cow, so the cost is higher
- C. The convergence time of RRPP has nothing to do with the number of nodes on the ring network, and can be applied to networks with larger network diameters
- D. Ethernet ring technology is becoming more mature and low in cost. The technologies to solve the problem of layer 2 network loops include RPR and RRPP
Answer: C
NEW QUESTION 33
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