H3CSE-RS-SW - GB0-372-ENU Exam Questions [2026]

QUESTION NO: 1
Regarding configuration BPDU and TCM BPDU, which of the following statements are correct?
(Multiple choice)

A. Alternate ports will neither send configuration BPDUs nor TCN BPDUs. B. Configuration BPDU is only sent from the designated port, and TCNBPDU is only sent from the root port. C. Configuration BPDU is usually only sent periodically by the root bridge, while TCNBPDU may be sent by other bridges except the root bridge. D. Configuration BPDU is usually received only from the root port, and TCNBPDU is received only from the designated port

Correct Answer: A,B,C,D

QUESTION NO: 2
As shown in the figure, the switches all run RSTP. Initially, SWA, SWB and SWC are interconnected through links 1, 2 and 3. When the network connection undergoes the following changes, which of the following is the correct statement?

A. When the link between SWB and SWC is DOWN, both SWB and SWC will send RST BPDU with TC set. B. When the edge port EO/1 of SWC is connected to a PC, SWC will send a RST BPDU with TC set. C. As shown in the figure, when SWB is connected to another switch SWD running RSTP, SWD will send RSTBPDU with TC set. D. As shown in the figure, when SWB is connected to another switch SWD running RSTP, SWB will send RSTBPDU with TC set.

Correct Answer: D

QUESTION NO: 3
The Output action defined by the OpenFlow protocol can forward packets to a specified port. Which of the following options are ports supported by Output? (Multiple choice)

A. CONTROLLER B. SWITCH C. NORMAL D. FLOOD

Correct Answer: A,C,D

QUESTION NO: 4
Regarding PIM protocol configuration, which of the following is correct? (Multiple choice)

A. PIM protocol is configured in VLAN interface view B. PIM protocol is configured in VLAN view C. PIM-SM configuration includes enabling PIM-SM, RP-related configuration, and C-BSR-related configuration. If you need to designate a device as a DR device on a shared network segment, you also need to configure the priority option of the Hello message. D. To configure PIM-DM, you only need to enable PIM-DM on the interface.

Correct Answer: A,C

QUESTION NO: 5
In the switching network shown in the figure, VLAN 10 is set as lsolate-user-vlan VLAN 2 and VLAN
3 are set as the Secondary VLAN of VLAN 10 on the switch SWA. Which of the following is the link layer of the VLAN 10 virtual interface UP on switch SWA? (Multiple choice)

A. GigabitEthernet1/0/1 port is UP B. GigabitEthernet1/0O/2 port is UP C. GigabitEthernet1/0/3 port is UP D. GigabitEthernet1/0/1, GigabitEthernet1/0/2, and GigabitEthernet1/0/3 are all UP

Correct Answer: A,B,C,D

QUESTION NO: 6
Which of the following statements about PIMSM shared network segment DR is correct? (Multiple choice)

A. The DR on the receiver side is responsible for sending a join message to the RP B. The DR on the multicast source side must run IGMP, otherwise the receivers on the receiver side cannot receive the multicast traffic. C. The DR on the multicast source side is responsible for sending registration messages to the RP D. DR election is only required when there are multiple routers connected to the shared network segment on the receiver side and the routers are running IGMPV1.

Correct Answer: A,C

QUESTION NO: 7
Regarding the compatibility configuration of MSTP, which of the following statements are correct?
(Multiple choice)

A. If the MSTP message format received by the port is inconsistent with the configured message format, the port will become a designated port and the port status will remain in the Discarding state to prevent loops. B. The stpcompliance command can be used to configure the MSTP compatibility mode of the port. The auto parameter means that the port only sends and receives MSTP messages that are compatible with non-standard formats. C. If the port identification/sending MSTP message mode is configured as dotls, the port only sends and receives MSTP messages in standard format. D. The ports of H3C switches can be configured to automatically identify the format of MSTP messages and determine the format of the messages to be sent based on the identification results.

Correct Answer: A,C,D

QUESTION NO: 8
In PIM-DM networking, which of the following is correct about the process of SPT formation (without considering the state refresh mechanism)? (Multiple choice)

A. After the diffusion-pruning process, an SPT is formed between the multicast source and the multicast receiver. B. As long as the network topology and unicast routing information remain unchanged, the SPT tree will not change. C. The diffusion-pruning process is carried out cyclically D. The pruned interface no longer sends multicast packets downstream

Correct Answer: A,C