GB0-372-ENU Sample Practice Exam Questions 2024 Updated Verified
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NEW QUESTION # 99
Host PCA, PCB and PCC are connected to Ethernet1/0/1 Ethernet1/0/2 and Ethernet1/0/3 ports of switch SWA respectively, and their addresses are in the same network segment. Checking VLAN on SWA shows the following:
[SWA] display vlan 10
VLAN ID:10
VLAN Type: static
Route Interface: not configured Description: VLAN 0010 Name: VLAN 0010
Tagged Ports: none Untagged Ports: Ethernet1/0/1 Ethernet1/0/24 [SWA] display vlan 20VLAN ID: 20 VLAN Type: static Route Interface: not configured Description: VLAN 0020 Name: VLAN 0020 Tagged Ports: none Untagged Ports:
Ethernet1/0/2Ethernet1/0/24 [SWA] display vlan 30VLAN ID: 30
VLAN Type: static
Route Interface: not configured Description: VLAN 0030 Name: VLAN 0030
Tagged Ports: none Untagged Ports:
Ethernetl/0/1 Ethernetl/0/2 Ethernet1/0/24 From the above output information, we can judge which of the following is correct? (Multiple choice)
- A. PCA, PCB and PCC cannot communicate with each other
- B. PCA can communicate with PCB
- C. PCA can communicate with PCC
- D. PCB can communicate with PCC
Answer: C,D
NEW QUESTION # 100
Two routers are connected through a LAN to form a VRRP backup group. 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
[RTB-GigabitEthernet1/0] display this
IP address 192.168.0.253 255.255.255.0
Vrrp vrid 1 virtual-ip 192.168.0.254
what can we learn from the above information?
- A. RTA and RTB are both in VRRP Master state
- B. RTA is the Master router of the backup group
- C. RTB is the Master router of the backup group
- D. RTA and RTB cannot elect a master router for the backup group
Answer: C
NEW QUESTION # 101
How does Overlay technology solve the problems and challenges encountered in the development of cloud computing? (Multiple choice)
- A. For the Underlay network, the data packets of the Overlay network are just forwarding of the tunnel endpoint address, so the MAC address specification requirements of the Underlay network (especially the access switch) are greatly reduced.
- B. Overlay encapsulates the Layer 2 message in the IP message, allowing the virtual machine to achieve Layer 2 intercommunication across the Layer 3 network
- C. Overlay network only needs edge devices to support Overlay, and the middle Underlay network can use traditional devices, which can protect existing investments and facilitate technology implementation.
- D. Overlay expands the number of isolation identification bits. Compared with using VLAN to achieve network isolation, the isolation capability of Overlay network is greatly improved.
Answer: A,B,C,D
NEW QUESTION # 102
As shown in the figure, there is no connection between SWA and SWB at the beginning. SWA and SWB enable RSTP. When the topology is stable, connect the ports E1/0/1 of SWA and SWB. Assuming that SWA will become the new root bridge, which of the following is correct? (Multiple choice)
- A. SWB does not need to generate BPDU by itself. The content of the Agreement message it responds to is copied from the Proposal message sent by SWA.
- B. Port E1/0/1 of SWA and SWB will send a Proposal message, requesting to enter the forwarding state
- C. SWB will immediately reply with an Agreement message after receiving the Proposal message sent by SWA
- D. After receiving the Proposal message sent by SWA, SWB will start the synchronization process to block the old root port, designated port, and edge port.
Answer: A,B
NEW QUESTION # 103
The IP address of host PCA is 40.1.1.1, and the MAC address is 0011.1111.11. It is connected to the GigabitEthernet1/0/1 port of the switch. The following commands are configured on the switch:
[H3C] vlan 10 [H3C-vlan10] quit
[H3C] vlan 20
[H3C-vlan20] protocol-vlan ipv4
[H3C-vlan20] quit
[H3C] vlan 30 [H3C-vlan30] quit
[H3C] mac-vlan mac-address 0022-2222-2222 vlan 30
[H3C] vlan 40
[H3C-vlan40] ip-subnet-vlan ip 40.1.1.0 255.255.255.0
[H3C-vlan40] quit
[H3C] interface GigabitEthernet 1/0/1
[H3C-GigabitEthernet1/0/1] port link-type hybrid
[H3C-GigabitEthernet1/0/1] port hybrid pvid vlan 10
[H3C-GigabitEthernet1/0/1] port hybrid vlan 10 20 30 40 untagged
[H3C-GigabitEthernet1/0/1] port hybrid protocol-vlan vlan 20 0
[H3C-GigabitEthernet1/0/1] port hybrid ip-subnet-vlan vlan 40
[H3C-GigabitEthernet1/0/1] mac-vlan enable
After the configuration is complete, which of the following can be determined that PCA will join?
- A. VLAN 30
- B. VLAN 10
- C. VLAN 40
- D. VLAN 20
Answer: C
NEW QUESTION # 104
The improvements of SNMP vc2 compared with SNMPV1 protocol include which of the following?
(Multiple choice)
- A. All operations become non-atomic, greatly improving the effectiveness of protocol message interaction
- B. Provide more error codes to express errors more accurately and facilitate problem location
- C. Provide more reliable security mechanism, safer to use
- D. Added the GETBULK REQUEST operation, which can request large amounts of data at once
Answer: D
NEW QUESTION # 105
In the switching network shown in the figure, VLAN 10 is set as the Super VLAN on the switch SWA, and VLAN 2 and VLAN 3 are the Sub VLANs of VLAN 10. If PCA and PCB are required to be able to access each other, which of the following items should be included in the configuration of the switch SWA? (Multiple choice)
- A. [ SWA] vlan 10
[SWA-vlan 10] supervlan - B. [SWA] interfaceVlan-interface 10
[SWA-Vlan-interface10] ip address 10.1.1.4 255.255.255.0
[SWA-Vlan-interface10] local-proxy-arp enable - C. [SWA] vlan3
[SWA-vlan3] port Ethernet 1/0/2 - D. [SWA] vlan10
[SWA-vlan10] local-proxy-arp enable
[SWA] interface Vlan-interface 10
[SWA-Vlan-interface10] ip address 10.1.1.4 255.255.255.0 - E. [SWA] vlan2
[SWA-vlan2] port Ethernet 1/0/1 - F. [SWA] supervlan10 subvlan 2 3
Answer: B,C,D,E
NEW QUESTION # 106
PIM-DM provides a state refresh mechanism. Which of the following statements are correct?
(Multiple choice)
- A. After receiving the State Refresh message, the router sends a State Refresh message to the interfaces of all PIM neighbors.
- B. The router will reset the pruning timer after receiving the State Refresh message
- C. The router directly connected to the receiver sends a State Refresh message
- D. When the interface is in forwarding state, the prune flag in the State Refresh message is 0
- E. When the interface is in pruning state, the pruning flag in the State Refresh message is 1
Answer: B,D,E
NEW QUESTION # 107
What advantages does SDN network have in the future network evolution process? (Multiple choice)
- A. Rapid business launch
- B. Increase the speed of network innovation
- C. System-Open programmable interface
- D. White-box network equipment
Answer: A,B,C,D
NEW QUESTION # 108
Regarding the compatible operation of RSTP and STP, which of the following is correct? (Multiple choice)
- A. When the RSTP switch and the STP switch work together, you need to use the command stpmode stp to switch the working mode of the RSTP switch to STP.
- B. When the connection between the RSTP switch and the STP switch is disconnected, the port previously connected to the STP switch will automatically switch back to RSTP mode
- C. When a port on an RSTP switch is switched to STP mode, the port will no longer have the fast convergence feature of RSTP.
- D. When RSTP switch and STP switch work together, the port connected to the STP switch will switch to STP mode
Answer: C,D
NEW QUESTION # 109
Which of the following statements about RP selection in PIMSM is correct? (Multiple choice)
- A. Compare the hash values calculated by the Hash function again, the one with the larger value wins
- B. Finally, compare the C-RP addresses, and the one with the smaller value wins.
- C. First compare the priorities of the C-RPs, and the one with the higher priority wins.
- D. Finally, compare the C-RP addresses, and the one with the larger value wins.
Answer: A,C,D
NEW QUESTION # 110
Which of the following statements is correct regarding the configuration of the spanning tree protection mechanism?
- A. The root bridge protection command will only play a protective role when it is configured on the root bridge in the network.
- B. The loop protection command needs to be configured on each port on the physical loop.
- C. After configuring the TC protection threshold, if the number of TC messages received by the device within the default 10 seconds exceeds the threshold, the device will no longer delete the address table entry within these 10 seconds.
- D. BPDU protection needs to be configured in the port view designated as the edge port.
Answer: C
NEW QUESTION # 111
Regarding the port status and role in RSTP, which of the following is correct? (Multiple choice)
- A. The Discarding port in RSTP is like the Blocking port in STP. When the port is in the Discarding state, it will not send BPDU, but will receive BPDU.
- B. The definitions of root port and designated port in RSTP are the same as those in STP.
- C. There are three states for ports in RSTP. After a port enters the Learning state, it starts to send and receive BPDUs and determines the port role.
- D. In RSTP, the Alternate port is used to back up the root port, and the Backup port is used to back up the designated port.
Answer: B,D
NEW QUESTION # 112
As shown in the figure, the switch enables RSTP. Which of the following statements about its configuration is correct? (Multiple choice)
- A. If the edge port receives BPDU, it will enter the blocking state
- B. Port E0/3 of SWB and SWC can be configured as an edge port
- C. The ports that interconnect SWB and SWC can be configured as edge ports to achieve rapid topology convergence
- D. Ports configured as edge ports can directly enter the forwarding state without delay
Answer: B,D
NEW QUESTION # 113
Which of the following licenses requires each VCFC in the cluster to purchase a license?
- A. ZTP License
- B. Overlay License
- C. Basic Function License
- D. Service-Chain License
Answer: C
NEW QUESTION # 114
In the switching network 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 and VLAN20 are created on switch SWB, and VLAN20 is set as Isolate-user-vlan, and VLAN4 is set as Secondary VLAN of VLAN20. After setting the IP addresses of each device as shown in the figure, check the MAC address table on SWA, and you can judge that PCA belongs to _ ______.
- A. VLAN 3
- B. VLAN 10
- C. VLAN 1
- D. VLAN 4
- E. VLAN 20
- F. VLAN 2
Answer: F
NEW QUESTION # 115
In the network connection shown in the figure, SWA and SWB both have STP and Loopback- detection enabled. Please confirm that which of the following status description of each port of SWA and SWB is correct?
- A. SWA's G1/0/1 may be blocked because STP detects a loop.
- B. STP detects a loop between G1/0/2 or G1/0/3 of SWB and blocks one of them.
- C. Loopback-detection detects a loop between G1/0/2 and G1/0/3 of SWB and blocks one of them.
Answer: B
NEW QUESTION # 116
In the switching network shown in the figure, VLAN10 is set as lsolate-user-vlan on switch SWA, VLAN2 and VLAN3 are set as the secondary VLAN of VLAN 10; VLAN2 and VLAN20 are created on switch SWB, and VLAN20 is set as lsolate-user-vlan, and VLAN4 is set as the secondary VLAN of VLAN20. After setting the IP addresses of each device, check the MAC address table on SWA, and it will be displayed that PCB belongs to? (Multiple choice)
- A. VLAN 2
- B. VLAN 10
- C. VLAN 1
- D. VLAN 4
- E. VLAN 20
- F. VLAN 3
Answer: B,F
NEW QUESTION # 117
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