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H3C GB0-372-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced Switching Features | 20% | - Port security and traffic control - DHCP relay and snooping - Switch management and monitoring - Layer 3 switching and routing protocols |
| Topic 2: Campus Network Overview | 10% | - Campus network architecture and design principles - Hierarchical network model |
| Topic 3: IP Multicast | 15% | - PIM-DM and PIM-SM basics - IGMP protocol versions and operation - Multicast concepts and addressing |
| Topic 4: High Availability Technologies | 15% | - Link aggregation (LACP and static mode) - Device redundancy and failover - VRRP protocol and deployment |
| Topic 5: Spanning Tree Protocols | 20% | - MSTP configuration and optimization - STP, RSTP and MSTP principles - Root bridge and port roles election - Bridge protocol data units (BPDU) |
| Topic 6: VLAN Technologies | 20% | - VLAN fundamentals and configuration - Trunk, Hybrid and Access ports - QinQ technology and application - VLAN routing and Inter-VLAN communication |
H3CSE-RS-SW Sample Questions:
1. Concerning the comparison of BPDU processing methods between RSTP and STP, which of the following statements is correct? (Multiple choice)
A) The aging time of RSTBPDU is reduced from Max age to 3 consecutive Hello Time durations.
B) After receiving the configuration BPDU, the RSTP switch calculates and compares the priority vector in the same way as STP.
C) RSTP follows the STP configuration BPDU sending method. Configuration BPDU is only sent periodically by the root bridge.
D) In RSTP, a port in a blocked state can respond immediately when it receives a BPDU with priority.
2. Regarding the relationship between SuperVLAN and Sub VLAN, which of the following descriptions is correct? (Multiple choice)
A) Sub VLAN only contains physical ports, and the internal host uses the Super VLAN interface address as the gateway
B) SuperVLAN only establishes a Layer 3 interface and is responsible for Layer 3 forwarding of Sub VLAN
C) SuperVLAN is equivalent to aggregating Sub VLANs, so that all Sub VLANs share the same Layer 3 interface.
D) Although physical ports cannot be included in the SuperVLAN configuration, after the mapping relationship between the SuperVLAN and the Sub VLAN is established, the physical ports included in the SubVLAN belong to the SuperVLAN.
3. 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) The pruned interface no longer sends multicast packets downstream
B) The diffusion-pruning process is carried out cyclically
C) After the diffusion-pruning process, an SPT is formed between the multicast source and the multicast receiver.
D) As long as the network topology and unicast routing information remain unchanged, the SPT tree will not change.
4. There are multiple IGMPv2 group member hosts (Client1/Client2/Client3) in the shared network segment, and there are also multiple IGMPv2 routers (Router1/Router2) as shown below:
Then, which of the following statement is correct? (Multiple choice)
A) Router1 and Router2 periodically send general group queries to the shared network segment
B) After the host receives the general group query message, after the first host sends a Report message, the Report messages of other hosts are suppressed
C) After the host receives the general group query message, Client1, Client2, and Client3 may all send Report messages.
D) After the host receives the query message, only the Clients send Report messages
E) Only Router2 periodically sends general group queries to the shared network segment
F) Only Router1 periodically sends general group queries to the shared network segment
5. The advantages of IP multicast include? (Multiple choice)
A) Best Effort Forwarding
B) Enhance message sending efficiency
C) Effectively control network traffic
D) Reduce server load
Solutions:
| Question # 1 Answer: A,B,D | Question # 2 Answer: A,B,C | Question # 3 Answer: B,C | Question # 4 Answer: C,E | Question # 5 Answer: B,C,D |


