[2025年01月]更新のGB0-372-ENU試験事前練習テスト試験問題と解答H3CSE-Routing & Switching学習ガイド
H3CSE-RS-SW認証サンプル解答
質問 # 190
In the network connection shown in the figure, SWA and SWB are three-layer switches, running STP+VRRP, and after the initial configuration is completed, SWA is the root of STP and the master of VRRP, and SWC is the downlink access terminal of the two-layer switch. Which of the following description of the network link failure is correct?
- A. When the link between SWA and SWB is disconnected, the VRRP Master will switch and SWB will become the new VRRP Master
- B. When the link between SWA and SWC is disconnected, the STP topology will change, and G1/0/2 of SWC will become Forwarding
- C. When the link between SWA and SWB is disconnected, the STP topology will change, and both uplink ports of SWC will become Forwarding
- D. After the link between SWA and SWC is disconnected, the VRRP Master will remain unchanged, but the SWC downstream terminal will not communicate with the gateway.
正解：C
質問 # 191
Two switches SWA and SWB are connected together through four Ethernet cables, and the corresponding interfaces on switch SVVA have the following configuration:
[SWA-Ethernet1/0/1] display this duplex full
Speed 10
[SWA-Ethernet1/0/2] display this duplex full
Speed 10
[SWA-Ethernet1/0/3] display this duplex half
Speed 100
[SWA-Ethernet1/0/4] display this duplex half
Speed 100
What can we learn from the above information?
- A. Four Ethernet ports are added to the same aggregation group through static aggregation, and the Selected ports are all four ports.
- B. Four Ethernet ports are added to the same aggregation group through static aggregation. The selected ports are Ethernet 1/0/1 and Ethernet 1/0/2.
- C. Four Ethernet ports are added to the same aggregation group through static aggregation. The selected ports are Ethernet 1/0/1 and Ethernet 1/0/3.
- D. Four Ethernet ports are added to the same aggregation group through static aggregation. The selected ports are Ethernet 1/0/3 and Ethernet 1/0/4.
正解：B
質問 # 192
In BFD echo working mode, the other end needs to configure which of the following?
- A. No configuration is required
- B. Configure bfd echo enable on the interface
- C. Configure bfd session init-mode active in the system view
- D. Configure bfd demand enable on the interface
正解：B
質問 # 193
In the basic AAA implementation structure shown in the figure, if the server group is configured to provide AAA security services to a certain service of the host, which of the following security functions can be implemented and completed by the AAA server group? (Multiple choice)
- A. Distribute directories that access users can access
- B. Record the access traffic and duration
- C. Send access level to access users
- D. Verify access username and password
正解：A、B、C、D
質問 # 194
IGMPv2 protocol message format is as follows:
The router runs the IGMPv2 protocol. The Group Address in the Query message received by the host in the downstream LAN may be? (Multiple choice)
- A. 224.0.0.1
- B. 224.0.0.2
- C. 225.0.1.0
- D. 225.1.1.1
- E. 0.0.0.0
正解：C、D
質問 # 195
The configuration command to enable the global GVRP function on the H3C series switch is ()
正解：
解説：
GVRP
質問 # 196
As shown in the figure, initially link 2 is not connected, and the switches do not enable STP. PCB can send data to PCA. If link 1 fails at this time, the maintenance personnel connect link 2. Which of the following is the correct statement about the recovery process of the data transmission service from PCB to PCA is (assuming that PCA will not actively send data) (Multiple choice)
- A. SWB's EO/1 interface can immediately enter the forwarding state
- B. The default time for PCB to PCA service recovery is 300 seconds
- C. The default time for PCB to PCA service recovery is 30 seconds
- D. SWC can immediately forward the data from PCB to PCA to SWB
正解：A、B
質問 # 197
A loop in the LAN may cause? (Multiple choice)
- A. MAC address learning error
- B. The end rate changes
- C. The port duplex mode changes
- D. Broadcast Storm
正解：A、D
質問 # 198
Regarding the stpmcheck command in spanning tree configuration, which of the following are the correct statements?
- A. This command is used when switches from different manufacturers are interconnected and MSTP is running to check summary information.
- B. This command is used when the switch port running RSTP or MSTP is connected to the STP device.
- C. This command is used when RSTP switches and MSTP switches are interconnected.
- D. By running this command on a port of an RSTP or MSTP switch, you can switch the spanning tree mode of the port to STP.
正解：B
質問 # 199
The topology is shown in the figure. Perform STP calculation. which of the following is correct?
(Multiple choice)
- A. sWD port E0/1 is the root port
- B. SWA ports EO/1 and EO/2 are both designated ports.
- C. Both ports EO/1 and EO/2 of SWD will receive the configuration BPDU
- D. Port EO/2 of SWA is the Alternate port
正解：A、B、C
質問 # 200
The figure shows the application of SmartLink and RRPP hybrid networking. In this networking environment, the RRPP protocol is enabled on switches SWA, SWB, SWC, and SWD to provide link redundancy backup. What can we learn from the above information? (Multiple choice)
- A. Switches SWC, SWD, and SWE use the MSTP technology. The link between switch SWE and switches SWC and SWD will be blocked.
- B. Switches SWC, SWD, and SWE can use MSTP technology to avoid loops
- C. Switches SWC, SWD, and SWE can use SmartLink technology to avoid loops
- D. Switches SWC, SWD, and SWE use SmartLink technology. The link between switch SWE and switch SWC and switch SWD will be blocked.
正解：C、D
質問 # 201
AAA is a network security management mechanism. Which of the following protocols can be used to implement it? ((Multiple choice)
- A. TACACS+
- B. 802.1X
- C. EAPOL
- D. RADIUS+
正解：A、D
質問 # 202
What are the following methods used by RADIUS to ensure the correctness of messages exchanged between the RADIUS server and the RADIUS client? (Multiple choice)
- A. The RADIUS protocol has a message retransmission mechanism
- B. Each message sent by the RADIUS protocol has an independent and unique sequence number.
- C. RADIUS protocol uses timers to manage message sending
- D. RADIUS protocol uses TCP to reliably transmit messages
正解：A、C
質問 # 203
The figure shows the stable topology after STP calculation convergence. Which of the following statements is correct? (Multiple choice)
- A. SWA is the root bridge in the network
- B. The aging time for the port to save the BPDU is MaxAge
- C. The sending period of this BPDU is HelloTime
- D. This BPDU is a configuration BPDU, and the destination address is 01-80-C2-00-00-0
正解：A、B、C、D
質問 # 204
Which of the following is the core goal of high-reliability redundant network design?
- A. Maximize network access security
- B. Minimize network management complexity
- C. Maximize network bandwidth
- D. Minimize the existence of single point failures in the network
正解：D
質問 # 205
The IP address of host PCA is 40.1.1.1, and the MAC address is 0011.1111.1111. It is connected to the GigabitEthernet1/0/1 port of switch SWA. The following commands are configured on 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 50.1.1.0 255.255.255.0
[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
[SWA-GigabitEthernet1/0/1] vlan precedence ip-subnet-vlan
After the configuration is complete, can you tell which one the PCA will join?
- A. VLAN 30
- B. VLAN 10
- C. VLAN 20
- D. VLAN 40
正解：A
質問 # 206
What are the categories of VXLAN control planes? (Multiple choice)
- A. Routing protocol extension mode
- B. Based on SDN Controller mode
- C. Flooding mode
- D. Decentralized Control Mode
正解：A、B、C
質問 # 207
What are the advantages of SDN in network operation and maintenance? (Multiple choice)
- A. Overall traffic scheduling
- B. Fault visibility
- C. Unified management
- D. Rapid business launch
正解：A、B、C、D
質問 # 208
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