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H3C GB0-372-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Campus Network Overview | 10% | - Hierarchical network model - Campus network architecture and design principles |
| Topic 2: High Availability Technologies | 15% | - VRRP protocol and deployment - Device redundancy and failover - Link aggregation (LACP and static mode) |
| Topic 3: VLAN Technologies | 20% | - VLAN routing and Inter-VLAN communication - QinQ technology and application - Trunk, Hybrid and Access ports - VLAN fundamentals and configuration |
| Topic 4: Spanning Tree Protocols | 20% | - STP, RSTP and MSTP principles - Root bridge and port roles election - Bridge protocol data units (BPDU) - MSTP configuration and optimization |
| Topic 5: Advanced Switching Features | 20% | - Port security and traffic control - Switch management and monitoring - DHCP relay and snooping - Layer 3 switching and routing protocols |
| Topic 6: IP Multicast | 15% | - PIM-DM and PIM-SM basics - IGMP protocol versions and operation - Multicast concepts and addressing |
H3CSE-RS-SW Sample Questions:
The three switches SWA, SWB, and SWC are connected to form a network as shown in the figure, and all of them have the spanning tree protocol enabled. The cost of each link is known. After the spanning tree calculation, SWC is the root bridge in the network, which of the following is correct?
- A. Alternate ports exist on SWA
- B. The port role of SWB's EO/1 cannot be determined because the bridge IDs of SWB and SWA are unknown and the priorities of the two cannot be compared.
- C. SWB's EO/2 port is the root port
- D. All ports on SWC are designated ports
Correct Answer: D 🗳️
Which of the following is correct about the description of lsolate-user-vlan technology and Super VLAN technology? (Multiple choice)
- A. SuperVLAN technology is also called VLAN aggregation: its main purpose is to solve the problem of IP address waste or insufficient VLAN interface quantity.
- B. SuperVLAN is a three-layer VLAN technology, so the switches that support Super VLAN technology are all three-layer switches.
- C. Isolate-user-vlan is a Layer 2 VLAN technology, so switches that support isolate-user-vlan technology are all Layer 2 switches.
Correct Answer: A,B 🗳️
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. Controller 2Controller role "Master", indicating that Controller 2 is the leader of the cluster
- B. The Connect state of both Controllers is "Established", which proves that the current OpenFlow connection is normal.
- C. All of the above options are correct
- D. The keep-alive message sending interval between two Controllers is 5 seconds
Correct Answer: C 🗳️
Which of the following statements about the generation of TCNBPDU is correct?
- A. If the alternate port of a switch in the network is down, the switch will not generate TCN BPDU
- B. When a switch port is selected as a designated port or root port, the switch will immediately send TCNBPDU
- C. If the link of a designated port of a switch in the network is broken, the switch will definitely generate a TCNBPDU
- D. If a port of a non-root bridge switch with STP enabled is connected to a PC, the switch will not generate TCN BPDU when the port enters the forwarding state.
Correct Answer: A 🗳️
Before configuring the bpdu-tunnddotlq stp command on the port of the H3C series switch that enables the QinQ function, the command that must be configured on this port is ()
Reveal Solution Discussion 0Correct Answer:
stp disable
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