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H3C GB0-372-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Campus Network Overview | 10% | - Campus network architecture and design principles - Hierarchical network model |
| IP Multicast | 15% | - IGMP protocol versions and operation - Multicast concepts and addressing - PIM-DM and PIM-SM basics |
| Spanning Tree Protocols | 20% | - STP, RSTP and MSTP principles - Root bridge and port roles election - Bridge protocol data units (BPDU) - MSTP configuration and optimization |
| VLAN Technologies | 20% | - QinQ technology and application - VLAN fundamentals and configuration - VLAN routing and Inter-VLAN communication - Trunk, Hybrid and Access ports |
| Advanced Switching Features | 20% | - Layer 3 switching and routing protocols - Switch management and monitoring - Port security and traffic control - DHCP relay and snooping |
| High Availability Technologies | 15% | - Link aggregation (LACP and static mode) - Device redundancy and failover - VRRP protocol and deployment |
H3CSE-RS-SW Sample Questions:
1. Regarding the spanning tree port cost configuration of H3C switches, which of the following is correct? (Multiple choice)
A) By default, the larger the port cost value, the smaller the port bandwidth
B) The default spanning tree port cost standard followed by H3C switches is legacy
C) H3C switches support three port cost standards: dot1d-1998, dot11, and legacy. The stp pathcost- standard command can be used to switch the port cost standard.
D) If switches from different manufacturers are interconnected, the switches should be configured to follow the same port cost standard as much as possible, otherwise the spanning tree calculation results may deviate from the original intention of the network design.
2. Which of the following statements about the BPDU format of MSTP is correct? (Multiple choice)
A) The MSTI specifies that the port priority field is 2 bytes long, including 1 byte of port priority and 1 byte of port number.
B) The timer value in the RSTBPDU will be used during the MSTI calculation process, and the timer parameters will not be carried in each MSTI configuration message
C) If the switch is not configured with VLAN-to-instance mapping, the MSTBPDU will not carry any MSTI configuration information.
D) The MSTI specifies that the bridge priority field is 8 bytes long, including 2 bytes of bridge priority and
6 bytes of bridge MAC address.
3. In the switching network shown in the figure, VLAN10 is set as Super VLAN on switch SWA, VLAN2 and VLAN3 are Sub VLANs of VLAN10. Port Ethernet1/0/3 is a Trunk port with PVID of VLAN1, allowing all VLANs to pass through. VLAN2~VLAN20 are created on switch SWB, port Ethernet1/0/4 is a Trunk port with PVID of VLAN1, allowing all VLANs to pass through. After setting the IP addresses of each device as shown in the figure, check the MAC address table on SWA, and you can determine that PCC belongs to?
A) VLAN 1
B) VLAN 2
C) VLAN 10
D) VLAN 3
4. In an SDN network, log in to an Overlay edge device and enter the command "display openflow instance 1 controller". The following is the response. Which of the following is correct inference that can be made from the response information?
A) All of the above options are correct
B) Controller 2Controller role "Master", indicating that Controller 2 is the leader of the cluster
C) The keep-alive message sending interval between two Controllers is 5 seconds
D) The Connect state of both Controllers is "Established", which proves that the current OpenFlow connection is normal.
5. Two routers RTA and RTB are connected together through a LAN to form a VRRP backup group.
The configuration of each router interface is as follows:
RTA's GigabitEthernet1/0
IP address 192.168.0.252 255.255.255.0
IP address 192.168.1.252 255.255.255.0 sub
Vrrp vrid 1 virtual-ip 192.168.0.254
Vrrp vrid 1 priority 120
Vrrp vrid 2 virtual-ip 192.168.1.254
GigabitEthernet 1/0 of RTB
IP address 192.168.0.253 255.255.255.0
IP address 192.168.1.253 255.255.255.0 sub
Vrrp vrid 1 virtual-ip 192.168.0.254
Vrrp vrid 2 virtual-ip 192.168.1.254
Vrrp vrid 2 priority 120
What can we learn from the above information? (Multiple choice)
A) Router A is the master router of backup group 1, and router B is the master router of backup group 2
B) Backup group 1 can be successfully established, and backup group 2 can be successfully established
C) Router A is the master router of backup group 1, and backup group 2 has no master router
D) Backup group 1 can be successfully established, but backup group 2 cannot be successfully established
Solutions:
| Question # 1 Answer: A,B,C,D | Question # 2 Answer: B,C | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: A,B |






