[Dec 21, 2021] Pass H3CSE-Routing & Switching GB0-371-ENU Exam With 337 Questions
Ultimate Guide to Prepare Free H3C GB0-371-ENU Exam Questions & Answer
NEW QUESTION 91
The following statements about the registration process of PIM SM are correct (choose one or more)
- A. After the RP receives the source registration message for the first time, it will send a (*, G) join message to the multicast source and establish (*, G) entries along the way
- B. Unlike the PUSH method of PIM DM, in PIM SM, the multicast source only starts to send multicast traffic when there are downstream receivers
- C. After the RP normally receives the multicast forwarded traffic from the multicast source, it forwards the multicast to its downstream interface until the multicast receiver, forming an RPT from the RP to the multicast receiver along the way.
- D. When a multicast source initially sends traffic, the connected DR will encapsulate several empty Register messages to register with the RP
Answer: C
NEW QUESTION 92
Regarding the port status and role in RSTP, what are the correct statements?
- A. There are three states for the port in RSTP. After the port enters the Learning state, it starts to send and receive BPDUs and determine the port role.
- B. The Discarding port in RSTP is like the Blocking port in STP. When the port is in the Discarding state, it will not send BPDUs, but will accept BPDUs.
- C. The definition of the root port and designated port in RSTP is the same as that in STP
- D. The Alternate port in RSTP is used to back up the root port, and the Backup port is used to back up the designated port.
Answer: C,D
NEW QUESTION 93
The customer's two switches SWA and SWB are connected by seven Ethernet cables and configured with static link aggregation. The corresponding ports on the switch SWA are Ethernet 1/0, Ethernet 1/0/2, and Ethernet 1/0/3 , Ethernet 1/0/4, Ethernet 1/0/5, Ethernet1/0/6, Ethernet 1/0/7, the configuration method is to configure according to the order of the ports. If the switch SWA, SWB each aggregation group only supports 6 ports ,then
- A. In the case of the same port configuration, Ethernet1/0/6 port is the Unselected port of the aggregation group
- B. When the configuration of each port is the same, the Ethernet1/0/7 port is the Unselected port of the aggregation group
- C. In the case of the same port configuration, Ethernet1/0/1 port is the Unselected port of the aggregation group
- D. When the configuration of each port is the same, SWA randomly selects a port among the 7 ports as the Unselected port of the aggregation group
Answer: B
NEW QUESTION 94
The customer purchases a router equipment. If the performance index of the router is MTBFW5000 and MTTRSOQ 5, the reliability of the router is
- A. 99.999%
- B. 99.9999%
- C. 99.99%
- D. 99.9%
Answer: C
NEW QUESTION 95
The customer's two switches SWA and SWB are connected together through seven Ethernet cables, and are configured with dynamic link aggregation. The corresponding ports on the switch SWA are Ethernet 1/0, Ethernet 1/0/2, and Ethernet 1/0/3 , Ethernet 1/0/4, Ethernet 1/0/5, Ethernet 1/0/6, Ethernet1/0/7 If the switches SWA and SWB only support 6 ports per aggregation group, and the SWA switch has the following configuration:
[SWA]interface Ethernet 1/0/7
[SWA-Ethernet1/0/7]lacp port-priority 4096
The LACP status output on the device is as follows:
[SWA]display lacp system-id
Actor System ID: 0x8000, 00e1-fc00-5000
[SWB]display lacp system-id
Actor System ID: 0x8000, 00e0-fc43-7384
From the above information, we can know_
- A. In the case of the same port configuration, Ethernet1/0/6 port is the Unselected port of the aggregation group
- B. When the configuration of each port is the same, the Ethernet1/0/7 port is the Unselected port of the aggregation group
- C. In the case of the same port configuration, Ethernet1/0/1 port is the Unselected port of the aggregation group
- D. In the case of the same port configuration, the Ethernet1/0/2 port is the Unselected port of the aggregation group
Answer: B
NEW QUESTION 96
In the switching network as shown in the figure, VLAN 10 is set as Super VLAN on the switch SWA, VLAN 2 and VLAN 3 are Sub VLANs of VLAN 10, Port Ethernet1/0/3 is Trunk port, PVID is VLAN 1, allowing all VLANs to pass ; Create VLAN2~VLAN20 on the switch SWB, port Ethernet1/0/4 as Trunk port, PVID is VLAN1, allowing all VLANs to pass, after setting the IP address of each device as shown in the figure, check the MAC address table on SWB , It can be judged that PCA belongs to
- A. VLAN 10
- B. VLAN 1
- C. VLAN3
- D. VLAN2
Answer: D
NEW QUESTION 97
GVRP is enabled on the switch SWA, and the Hold timer value is set to 100 centiseconds. Now you need to modify the value of other timers. The following configuration is correct
- A. [SWA-Ethernet1/0/1]garptimer join 50
- B. [SWA-Ethernet1/0/1]garp timer join 200
- C. [SWA]garp timer leaveall 415
- D. [SWA-Ethernet1/0/1]garptimer leave 400
Answer: B
NEW QUESTION 98
Which statement about the principle of SmartLink & Monitor Link is correct?
- A. SmartLink sends Flush messages to notify other devices to refresh MAC address forwarding entries and ARP entries
- B. MonitorLink sends Flush messages to notify other devices to refresh MAC address forwarding entries and ARP entries
- C. SmartLink is a port linkage solution that monitors the device uplink. Follow the Up/Down status change of the uplink to trigger the Up/Down change of the downlink
- D. MonitorLink realizes the redundant backup of the main and backup links, and enables the traffic to be quickly switched to the backup link after the main link fails
Answer: A
NEW QUESTION 99
The multicast IP address is 229.130.130.1, and its corresponding multicast mac address is _____.
- A. 01-00-5E-82-82-01
- B. 00-00-5E-82-82-01
- C. 00-00-5E-02-82-01
- D. 01-00-5E-02-82-01
Answer: C,D
NEW QUESTION 100
As shown in the network topology, if STP is enabled on SWA and SWD, the statement about SWA and SWD port status changes is correct.
- A. SWD port EO/1 will change from designated port to root port in the Listening state
- B. If the cost value of the SWD port EO/2 link is changed to 100, the port E0/2 will immediately turn into the new root port and enter the Forwarding state
- C. If the SWD bridge priority is set to 0, the SWD ports E0/1 and E0/2 will enter the Forwarding state after going through the Listening state and the Learning state
- D. If i sets the bridge priority of SWD to 0, the role of SWA port E0/1 will be changed from a designated port to a root port, and the port will remain in the Forwarding state during the transition.
Answer: A
NEW QUESTION 101
SNMP vc2 relative to the improvement of SNMPV1 protocol includes
- A. All operations have become non-atomic, greatly improving the effectiveness of protocol message interaction
- B. Added GETBULK REQUEST operation, which can request large quantities of data at once
- C. Provide a more reliable security mechanism and make the application more secure
- D. Provide richer error codes, which can express errors more accurately and facilitate problem location
Answer: B,D
NEW QUESTION 102
As the network management director of a certain company, Mr. Wang adheres to the following network technology and network equipment selection and application principles in network construction. As a network engineer, you think the selection and application of those technologies are not good for network management.
- A. The network equipment is provided by at least three different manufacturers
- B. The routing protocol must choose a standard dynamic routing protocol
- C. Each manufacturer's network equipment must use its own network management system for management
- D. All devices are required to support standard topology discovery protocol
Answer: A,C
NEW QUESTION 103
In the PIM-DM networking, regarding the process of SPT formation (without considering the state refresh mechanism), the correct description is:
- A. After the process of flooding and pruning, an SPT between the multicast source and the multicast receiver is formed
- B. As long as the network topology and unicast routing information remain unchanged, the formed SPT tree will not change
- C. The diffusion-pruning process is carried out periodically
- D. The pruned interface no longer sends multicast packets downstream
Answer: A,C
NEW QUESTION 104
In the switching network as shown in the figure, VLAN 10 is set as Super VLAN on the switch SWA, VLAN 2 and VLAN 3 are Sub VLANs of VLAN 10, Port Ethernet1/0/3 is Trunk port, PVID is VLAN1, allowing all VLANs to pass ; Create VLAN2~VLAN20 on the switch SWB, port Ethernet1/0/4 as Trunk port, PVID as VLAN1, allowing all VLANs to pass. After setting the IP address of each device as shown in the figure, you can judge (choose one or more item)
- A. SWA can communicate with PCA
- B. SWA can communicate with PCC
- C. SWA can communicate with PCB
- D. SWA can communicate with SWB
Answer: A,B,C
NEW QUESTION 105
In the switching network as shown in the figure, set VLAN10 as Isolate-userW, VLAN2 and VLAN3 as the Secondary VLAN of VLAN 10 on the switch SWA; create VLAN2-VLAN20 on the switch SWB, and set VLAN20 as Isolate-user-vlan, VLAN4 For the Secondary VLA of VLAN20, after setting the IP address of each device as shown in the figure, which of the following statements is correct (choose one or more)
- A. The PCA packet comes out of the GigabitEthem1/0/3 port of the SWA, and enters the GigabitEthem1/0/4 port of the SWB, and the VLAN tag carried is VLAN 10
- B. When SWB accesses PCA, the packet from SWB GigabitEth1/0/4 without VLAN Tag
- C. PCA packets enter from the GigabitEthem 1/0/1 port of SWA, and the VLAN Tag VLAN 1 after exiting from the GigabitEthem 1/0/3 port
- D. SWB packets enter from SWA's GigabitEthem1/0/3 port, and after exiting from GigabitEthem1/0/1 port i, the VLAN Tag carried is VLAN 10
Answer: B
NEW QUESTION 106
The following statements about RP election in PIMSM are correct:
- A. One RP can serve multiple multicast groups
- B. The announcement message information periodically sent by the C-RP router includes the C-RP address, priority, and the range of multicast groups it serves, etc.
- C. -A multicast group can select multiple RPs for load sharing
- D. After the BSR collects the announcement message information, it summarizes it into an RP-Set and sends it in multicast
Answer: A,B,D
NEW QUESTION 107
Which of the following messages are TACACS+ authentication messages
- A. Request
- B. Rsponse
- C. start
- D. Continue
Answer: C,D
NEW QUESTION 108
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 109
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. None of the above answers are correct
- B. 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
- C. 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
- 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: A
NEW QUESTION 110
The following statements about the PIM joining process are correct:
- A. The multicast joining path of DR in PIMDM is the optimal forwarding path from source to DR
- B. The multicast joining path of DR in PIMSM is the optimal forwarding path from source to DR
- C. The multicast joining path of DR in PIMSSM is the optimal forwarding path from source to DR
- D. The RP's multicast source joining path in PIMSM is the optimal forwarding path from the source to the RP
Answer: C,D
NEW QUESTION 111
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. VLAN2
- B. VLAN 10
- C. VLAN 1
- D. VLAN3
- E. VLAN4
- F. VLAN20
Answer: B,D
NEW QUESTION 112
Regarding the basic concepts of MSTP, the correct statement is
- A. When CST is running, the MST region is regarded as a logical switch, and the root bridge of CST is the domain to which the common root belongs
- B. IST is a spanning tree in the MST region, and the instance number corresponding to IST is 0
- C. By default, all VLANs in the MST domain are mapped to IST
- D. CST refers to a spanning tree between regions, which is obtained by running STP/RSTP between MST regions
Answer: A,B,C,D
NEW QUESTION 113
In the switching network as shown in the figure, VLAN10 is set as Isolate-user-vlan on switch SWA, VLAN2 and VLAN3 are set as Secondary VLAN of VLAN 10; VLAN2-VLAN20 is created on 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 as shown in the figure, the following statement is correct (choose one or more)
- A. SWB packets enter from SWA's GigabitEthem1/0/3 port, and after exiting from GigabitEthem1/0/1 port, the VLANTag carried is VLAN2
- B. When SWB accesses PCA, the VLAN tag carried by GigabitEthem1/0/4 of SWB is VLAN 1
- C. The packet of PCA enters from the GigabitEther1/0/1 port of SWA, and does not carry the VLAN tag after exiting from the GigabitEther1/0/3 port
- D. The PCA packet comes out of the GigabitEthem1/0/3 port of SWA and enters the GigabitEthe1/0/3 port of SWB, and the VLAN Tag carried is VLAN2
Answer: C
NEW QUESTION 114
When the router receives the multicast data, it searches the multicast forwarding table
- A. If there is a corresponding (S, G) entry in the multicast forwarding table, but the interface that the packet actually reaches does not match the inbound interface in the entry, the router discards the multicast data
- B. If there is a corresponding (S, G) entry in the multicast forwarding table, and the interface actually reached by the packet matches the inbound interface in the entry, the router forwards the multicast data
- C. If the multicast data RPF interface does not match the inbound interface in the (S, G) entry, the router will update the inbound interface of the entry to the checked RPF
- D. If the corresponding (S, G) entry does not exist in the multicast forwarding table, the router discards the multicast data
Answer: B,C
NEW QUESTION 115
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