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質問 1：
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. 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
C. When SWB accesses PCA, the VLAN tag carried by GigabitEthem1/0/4 of SWB is VLAN 1
D. 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
正解：D
質問 2：
Regarding root bridge protection, the following statements are correct:
A. When root bridge protection is not configured, the root bridge will lose its status as the root bridge if it receives a higher priority BPDU
B. The port will undergo a transition from the Listening state to the Forwarding state. During this period, if the port does not receive a better BPDU, the port will resume its original forwarding state.
C. After the root bridge protection is configured, the ports receive high-priority BPDUs, and the status of these ports will be set to Listening and no longer forward packets
D. Root bridge protection is configured in port view
正解：A,B,C,D
質問 3：
In the network shown in the figure, the switch SWA is a two-layer switch, and the router RTA is the gateway of each PC. The following configuration is made on the router RTA:
[RTA]interface Ethernet 0/0.1
[RTA-Ethernet0/0.1]ip address 10.10.10.1 255.255.255.0
[RTA-EthernetO/0.1 ]vlan-type dotlq vid 1
[RTA-Ethernet0/0.1 Jinterface ethernet 0/0.2
[RTA-Ethernet0/0.2]ip address 20.20.20.1 255.255.255.0
[RTA-Ethernet0/0.2]vlan-type dotlq vid 2
[RTA-Ethernet0/0.2]interface ethernet 0/0.3
[RTA-Ethernet0/0.3]ip address 30.30.30.1 255.255.255.0
[RTA-Ethernet0/0.3]vlan-type dotlq vid 3
After completing the phase configuration on the switch SWA, PCA, PCB and PCC can all ping their own gateway. The following is correct about the switch SWA port Ethernet1/0/4 (choose one or more)
A. interface Ethernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 3
B. interfaceEthernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all
C. interfaceEthernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 2
D. interface Ethernet 1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 10
正解：D
質問 4：
After executing the display interface Ethernet 1/0/2 command on the switch SWA, the output information is as follows:
[SWA]display interface Ethernet 1/0/2
Ethernet1/0/2 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0(sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
It can be judged from the above output
A. Port Ethernet1/0/2 only allows data from VLAN 1 and VLAN 10 to pass through
B. Data frames with VLAN20 tags will be discarded when they enter port Ethernet1/0/2
C. Data frames with VLAN1 tags will not be stripped off when they leave port Ethernet1/0/2
D. The only VLANs existing on the switch are VLAN1 and VLAN10
正解：B,C,D
質問 5：
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 1
B. VLAN3
C. VLAN 10
D. VLAN2
E. VLAN4
F. VLAN20
正解：B,C
質問 6：
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 the corresponding ARP table entry. When PCA accesses the PCB, an ICMP request message is sent, and the destination IP address of the message is
A. 20.1.1.1
B. 20.1.1.2
C. 10.1.1.1
D. 10.1.1.2
正解：B
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. 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
C. When SWB accesses PCA, the VLAN tag carried by GigabitEthem1/0/4 of SWB is VLAN 1
D. 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
正解：D
質問 2：
Regarding root bridge protection, the following statements are correct:
A. When root bridge protection is not configured, the root bridge will lose its status as the root bridge if it receives a higher priority BPDU
B. The port will undergo a transition from the Listening state to the Forwarding state. During this period, if the port does not receive a better BPDU, the port will resume its original forwarding state.
C. After the root bridge protection is configured, the ports receive high-priority BPDUs, and the status of these ports will be set to Listening and no longer forward packets
D. Root bridge protection is configured in port view
正解：A,B,C,D
質問 3：
In the network shown in the figure, the switch SWA is a two-layer switch, and the router RTA is the gateway of each PC. The following configuration is made on the router RTA:
[RTA]interface Ethernet 0/0.1
[RTA-Ethernet0/0.1]ip address 10.10.10.1 255.255.255.0
[RTA-EthernetO/0.1 ]vlan-type dotlq vid 1
[RTA-Ethernet0/0.1 Jinterface ethernet 0/0.2
[RTA-Ethernet0/0.2]ip address 20.20.20.1 255.255.255.0
[RTA-Ethernet0/0.2]vlan-type dotlq vid 2
[RTA-Ethernet0/0.2]interface ethernet 0/0.3
[RTA-Ethernet0/0.3]ip address 30.30.30.1 255.255.255.0
[RTA-Ethernet0/0.3]vlan-type dotlq vid 3
After completing the phase configuration on the switch SWA, PCA, PCB and PCC can all ping their own gateway. The following is correct about the switch SWA port Ethernet1/0/4 (choose one or more)
A. interface Ethernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 3
B. interfaceEthernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all
C. interfaceEthernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 2
D. interface Ethernet 1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 10
正解：D
質問 4：
After executing the display interface Ethernet 1/0/2 command on the switch SWA, the output information is as follows:
[SWA]display interface Ethernet 1/0/2
Ethernet1/0/2 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0(sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
It can be judged from the above output
A. Port Ethernet1/0/2 only allows data from VLAN 1 and VLAN 10 to pass through
B. Data frames with VLAN20 tags will be discarded when they enter port Ethernet1/0/2
C. Data frames with VLAN1 tags will not be stripped off when they leave port Ethernet1/0/2
D. The only VLANs existing on the switch are VLAN1 and VLAN10
正解：B,C,D
質問 5：
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 1
B. VLAN3
C. VLAN 10
D. VLAN2
E. VLAN4
F. VLAN20
正解：B,C
質問 6：
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 the corresponding ARP table entry. When PCA accesses the PCB, an ICMP request message is sent, and the destination IP address of the message is
A. 20.1.1.1
B. 20.1.1.2
C. 10.1.1.1
D. 10.1.1.2
正解：B
宫崎** -
ありがとう。 GB0-371-ENU試験に合格しました。メモを取りたい場合は、印刷することもできます。