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H3C GB0-372-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: High Availability Technologies | 15% | - Link aggregation (LACP and static mode) - Device redundancy and failover - VRRP protocol and deployment |
| Topic 2: IP Multicast | 15% | - PIM-DM and PIM-SM basics - Multicast concepts and addressing - IGMP protocol versions and operation |
| Topic 3: Advanced Switching Features | 20% | - DHCP relay and snooping - Switch management and monitoring - Port security and traffic control - Layer 3 switching and routing protocols |
| Topic 4: VLAN Technologies | 20% | - QinQ technology and application - VLAN fundamentals and configuration - Trunk, Hybrid and Access ports - VLAN routing and Inter-VLAN communication |
| Topic 5: Spanning Tree Protocols | 20% | - Root bridge and port roles election - STP, RSTP and MSTP principles - Bridge protocol data units (BPDU) - MSTP configuration and optimization |
| Topic 6: Campus Network Overview | 10% | - Hierarchical network model - Campus network architecture and design principles |
H3CSE-RS-SW Sample Questions:
Question #1
In the distributed gateway networking solution, which of the following statements about ARP proxy and ARP proxy are correct? (Multiple choice)
A. LEAF establishes ARP flood suppression table entries based on ARP packets and BGPEVPN routes.
In ARP proxy mode, ARP flood suppression table entries are used first to reply ARP packets.
B. In ARP proxy mode, the destination MAC of the message sent by the virtual machine is the gateway MAC
C. In ARP proxy mode, ARP will be flooded after ARP Miss
D. In Layer 3 forwarding, there is no difference in packet encapsulation and forwarding between ARP proxy mode and ARP proxy mode.
Question #2
In the switching network shown in the figure, VLAN10 is set as Private VLAN on switch SWA, and VLAN2 and VLAN3 are Secondary VLANs of VLAN10; VLAN2-VLAN20 is created on switch SWB, and VLAN20 is set as Private VLAN, and VLAN4 is Secondary VLAN of VLAN20. After setting the IP addresses of each device as shown in the figure, if the local ARP proxy function is enabled on SWA and SWB, and SWA and SWB are allowed to send ICMP packets, execute the command tracert 10.1.1.2 on PCA, and the destination IP address reached by the first hop displayed on PCA is ()
Question #3
Which of the following statements about virtual network models are correct? (Multiple choice)
A. The firewall in the OpenStack virtual network model is abstracted and converted by VCFC logic.
B. VCFC abstracts physical network device resources into the logical concept of a virtual network model
C. When it is mapped to a physical device, it may be a securely managed firewall context or a service chain VFW.
D. The Router, Network, Firewall, etc. in the OpenStack virtual network model can all be found on VCFC.
E. Nova plug-in maps the OpenStack virtual network model to the VCF virtual network model
Question #4
To query the CPU utilization of a device through SNMP, which of the following information should the network management application know before executing the query action? (Multiple choice)
A. Management IP address of the device
B. Instance ID of device CPU utilization
C. Device CPU utilization OID
D. SNMP community attributes of the device
Question #5
As shown in the figure, SWA, SWB and SWC enable STP. If the bridge priority of SWA is set to
61440 after the topology converges, which of the following statements are correct? (Multiple choice)
A. After the configuration BPDU saved locally by SWB ages, it will send a configuration BPDU with itself as the root to SWA.
B. By default, the topology will converge again after 30 seconds.
C. After receiving the low-priority configuration BPDU, SWC will immediately respond with the configuration BPDU with itself as the root.
D. After the priority is adjusted, SWA will still send configuration BPDUs with itself as the root.
Solutions:
| Question #1 Correct Answer: A,B,C | Question #2 Correct Answer: Only visible for members | Question #3 Correct Answer: A,B,D | Question #4 Correct Answer: A,B,C,D | Question #5 Correct Answer: D |
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