H3C GB0-372-ENUリアルに2024年最新のブレーン問題集で模擬試験問題集
GB0-372-ENU試験問題 リアルなGB0-372-ENU練習問題集
質問 # 36
The customer LAN switch SWA is connected to multiple switches. If it is known that the Monitor Link group is configured on SWA, the switch SWA has the following configuration information:
[SWA] monitor-link group 1
[SWA-mtlk-group1] port gigabitethernet 1/0/1 uplink
[SWA-mtlk-group1] port gigabitethernet 1/0/2 uplink
[SWA-mtlk-group1] port gigabitethernet 1/0/3 uplink
[SWA-mtlk-group1] port gigabitethernet 2/0/1 downlink
What can we learn from the above information?
- A. If the GigabitEthernet1/0/1 port is in the Up state, the GigabitEthernet 2/0/1 port will also be in the Up state.
- B. If the GigabitEthernet1/0/2 port is in the Down state, the GigabitEthernet 2/0/1 port will also be in the Down state.
- C. If the GigabitEthernet1/0/2 port is in the Down state, the GigabitEthernet 2/0/1 port will also be in the Down state.
- D. If the GigabitEthernet1/0/1 port is in the Down state, the GigabitEthernet 2/0/1 port will also be in the Down state.
正解：A
質問 # 37
The ports Ethernet1/0/1, Ethernet1/0/2, and Ethernet1/0/3 of the switch SWA are access, trunk, and hybrid ports respectively, and their PVIDs are all VLAN10. After executing the undo vlan10 command on SWA, which of the following configurations can be seen when checking the configurations of each port?
(Multiple choice)
- A. interfaceEthernet1/0/3 port link-type hybrid port hybrid vlan 1 untagged port hybrid pvid vlan 10
- B. interfaceEthernet1/0/1
- C. interface Ethernet 1/0/2 port link-type trunk port trunk permit vlan 1
- D. interfaceEthernet1/0/3 port link-type hybrid port hybrid vlan 1 untagged
- E. interfaceEthernet1/0/1 port access vlan 10
- F. All the above configurations are wrong
- G. interface Ethernet 1/0/2 port link-type trunk port trunk permit vlan 1 port trunk pvid vlan 10
正解：A、B、G
質問 # 38
Regarding the configuration of bridge priority in spanning tree, which of the following is correct?
(Multiple choice)
- A. The bridge priority value step is 4096
- B. The smaller the priority value, the lower the priority of the bridge.
- C. The bridge priority is 16 bits in total, ranging from 0 to 65535.
- D. If the switch is not configured with a bridge priority, the default value is 32768
正解：A、D
質問 # 39
The basic process of Layer 2 forwarding of Ethernet switches includes _____ (Multiple choice)
- A. Add or refresh the MAC address table entry based on the source MAC address and VLAN ID information of the received Ethernet frame;
- B. If a match is found and the port corresponding to the entry belongs to the VLAN corresponding to the message, the message is forwarded to the port; however, if the port corresponding to the entry is the same as the port that received the Ethernet frame, the frame is discarded.
- C. Search the MAC address table based on the destination MAC address. If no match is found, broadcast the message in the VLAN corresponding to the message.
- D. If a match is found, but the port corresponding to the entry does not belong to the VLAN corresponding to the message, the frame is discarded;
正解：B、C、D
解説：
A: The table entries are refreshed based on the correspondence between the source MAC address and the port.
質問 # 40
Which of the following statements about the PIM joining process is correct? (Multiple choice)
- A. The multicast join path of DR in PIMSM is the optimal forwarding path from the source to DR
- B. The group source joining path of RP in PIMSM is the optimal forwarding path from the source to the RP
- C. The multicast join path of DR in PIMDM is the optimal forwarding path from the source to DR
- D. The multicast join path of DR in PIMSSM is the optimal forwarding path from the source to DR
正解：D
質問 # 41
Regarding the POE system, which of the following is correct? (Multiple choice)
- A. The POE system consists of two parts: PSE equipment and PD equipment, where PD is the power supply device and PSE is the powered device.
- B. Usually PSE can support mid-span and end-span, while PD can only support one.
- C. POE usually uses two power supply methods: mid-span and end-span
- D. The voltage provided by the POE power supply is 48V, and the output power usually does not exceed 13W
正解：C、D
質問 # 42
Which of the following statements about the basic concepts of MSTP is correct? (Multiple choice)
- A. The role of the master port is the same on all MSTIs
- B. The Master bridge is the domain root of IST
- C. Master port refers to the region boundary port of the MST region
- D. If the MST region is regarded as a logical bridge, the Master port is the root port of the logical bridge.
正解：A、B、D
質問 # 43
Which of the following statements is correct about the fast convergence mechanism of MSTP?
(Multiple choice)
- A. All fast convergence mechanisms of MSTP and RSTP are the same
- B. In MSTP, edge ports can be specified for instances, that is, a port can be an edge port in some instances and a normal port in some instances.
- C. MSTP can work with RSTP switches to achieve fast convergence
- D. MSTP supports all the fast convergence mechanisms of RSTP
正解：C、D
質問 # 44
In an SDN network, which protocol packets may be sent to the vCFC and processed by the VCFC?
(Multiple choice)
- A. STP
- B. EVPN Update
- C. RARP
- D. LLDP
正解：C、D
質問 # 45
Which of the following statements are correct regarding the role and status of STP ports? (Multiple choice)
- A. Only the specified port will eventually be in the Forwarding state
- B. The designated port will enter the Forwarding state after two ForwardDelay durations.
- C. Only the Alternate port will be in the Blocking state
- D. Ports with the Alternate role will not experience the Listing state and the Learning state.
正解：B、C、D
質問 # 46
As the basis for SNMP protocol implementation, MIB must be stored and accessed with correct rules.
Which of the following descriptions about storage and access to MIB is incorrect? (Multiple choice)
- A. MIB is a collection of managed objects and is stored on managed devices
- B. The network management workstation can only access objects stored in the MIB on the network management workstation.
- C. The network management workstation can only access objects stored in the MIB on the managed device.
- D. MIB is stored in SM tree structure
- E. MIB is a collection of managed objects and is stored on the network management workstation
正解：B、D、E
質問 # 47
Regarding the multicast distribution tree model SPT, which of the following statement is correct?
(Multiple choice)
- A. In the SPT model, the path from the multicast source to any receiver is optimal.
- B. Different multicast sources use themselves as roots and independently establish SPTs
- C. Each router on the SPT maintains the (*, G) entry
- D. Each router on the SPT maintains the (S, G) table entry
正解：A、B、D
質問 # 48
What are the categories of VXLAN control planes? (Multiple choice)
- A. Decentralized Control Mode
- B. Routing protocol extension mode
- C. Flooding mode
- D. Based on SDN Controller mode
正解：B、C、D
質問 # 49
Which of the following mirroring technology that can achieve cross-switch?
- A. Remote Mirroring
- B. Local mirror
- C. Port mirroring
- D. Flow mirroring
正解：A
質問 # 50
AA is a management mechanism for network security. What security functions can it provide?
(Multiple choice)
- A. Authentication
- B. Access
- C. Accounting
- D. Control (ACL)
正解：A、C
質問 # 51
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