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Updated: Sep 01, 2026
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| Certification Vendor: | H3C |
|---|---|
| Exam Name: | Building H3C Layer 3 Switching Networks / Advanced Routing and Switching Technology 1 |
| Exam Number: | GB0-372-ENU |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 50 |
| Exam Price: | USD 150 |
| Related Certifications: | H3CSE-RS H3CSE-RS+ |
| Available Languages: | English |
| Passing Score: | 60% or 600/1000 |
| Exam Format: | Multiple-choice, Fill-in-the-blank, Single-choice, True/False |
| Exam Duration: | 90 minutes |
| Recommended Training: | H3C Building Layer 3 Switching Networks Training |
| Exam Registration: | Prometric Registration H3C Certification Portal |
| Sample Questions: | H3C GB0-372-ENU Sample Questions |
| Exam Way: | Delivered at authorized Prometric and ATAC test centers; online proctored option available in selected regions |
| Pre Condition: | Recommended: H3CNE-RS certification or equivalent knowledge |
| Official Syllabus URL: | https://www.h3c.com/en/Training/Technical_Certification/ |
| Section | Weight | Objectives |
|---|---|---|
| Advanced Switching Features | 20% | - Port security and traffic control - Switch management and monitoring - DHCP relay and snooping - Layer 3 switching and routing protocols |
| Campus Network Overview | 10% | - Campus network architecture and design principles - Hierarchical network model |
| VLAN Technologies | 20% | - Trunk, Hybrid and Access ports - VLAN fundamentals and configuration - QinQ technology and application - VLAN routing and Inter-VLAN communication |
| IP Multicast | 15% | - IGMP protocol versions and operation - PIM-DM and PIM-SM basics - Multicast concepts and addressing |
| High Availability Technologies | 15% | - VRRP protocol and deployment - Device redundancy and failover - Link aggregation (LACP and static mode) |
| Spanning Tree Protocols | 20% | - MSTP configuration and optimization - Root bridge and port roles election - Bridge protocol data units (BPDU) - STP, RSTP and MSTP principles |
Question 1
The network topology is shown in the figure. STP is enabled on SWA and SWD. Which of the following statements about the changes in the status of SWA and SWD ports are correct?
A. SWD port E0/1 will change from a designated port to a root port in the Listening state.
B. If the cost value of the SWD port E0/2 link is changed to 100, port E0/2 will immediately become the new root port and enter the Forwarding state.
C. If the bridge priority of SWD is set to 0, the ports E0/1 and E0/2 of SWD will enter the Forwarding state after the Listening state and the Learning state.
D. If the bridge priority of SWD is set to 0, the role of port E0/1 of SWA will change from designated port to root port, and the port will maintain the Forwarding state during the change.
Question 2
For the multicast distribution tree model, which of the following statement is correct? (Multiple choice)
A. Each router on the RPT maintains the (*, G) entry
B. Multicast distribution tree models are divided into two types: SPT and RPT
C. Different multicast sources use themselves as roots and independently establish RPTs
D. Each router on the SPT maintains the (S, G) table entry
Question 3
As shown in the figure, SWB and SWC enable STP. SWC is the root, and SWA does not enable STP. Initially, link 2 is not connected. PCB can send data to PCA. If link 1 fails at this time, the maintenance personnel connect link 2. which of the following statement about the recovery process of the data transmission service from PCB to PCA is correct? (Multiple choice)
A. SWB's port EO/1 needs to wait for the default 30 seconds to enter the forwarding state, so the service recovery from PCB to PCA takes a total of 30 seconds by default.
B. SWB's port EO/1 enters the Forwarding state, triggering a topology change process, which shortens the MAC address aging time. Therefore, the service recovery from PCB to PCA takes a total of 45 seconds by default.
C. Since SWA does not enable STP, service recovery needs to wait for the MAC address of SWC to age, which takes 300 seconds by default.
D. SWA port EO/1 will not send TCN BPDU to SWC after link is interrupted
Question 4
The layer 3 switch receives the data frame and performs layer 2/3 forwarding decision, which of the following is correct? (Multiple choice)
A. If the destination MAC address of the data frame is the MAC address of the VLAN interface of this switch, the switch performs Layer 3 forwarding.
B. If the destination IP address and source IP address of the data frame are not in the same network segment, the switch searches the routing table for Layer 3 forwarding.
C. If the destination MAC address of the data frame is not the MAC address of the VLAN interface of this switch, the switch searches the MAC address table for intra-VLAN Layer 2 forwarding.
D. If the destination IP address and source IP address of the data frame are in the same network segment, the switch will perform Layer 2 forwarding.
Question 5
Which of the following descriptions of Openflow are incorrect? (Multiple choice)
A. The main components of openFlow include OpenFlow controller and OpenFlow switch
B. OpenFlow instance types can be divided into global instances, VLAN instances, and interface instances.
C. The priority of the Table Miss entry is 65535
D. OpenFlow uses TCP port number 6622
Solutions:
| Question 1 Answer: A | Question 2 Answer: A,B,D | Question 3 Answer: B,D | Question 4 Answer: A,C | Question 5 Answer: C,D |
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