H3C GB0-800 : Huawei-3Com Certified internet Expert:Routing and Switching

GB0-800 real exams

Exam Code: GB0-800

Exam Name: Huawei-3Com Certified internet Expert:Routing and Switching

Updated: Sep 30, 2026

Q & A: 866 Questions and Answers

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H3C GB0-800 Exam Syllabus Topics:

SectionObjectives
Topic 1: LAN Switching Technologies- VLAN and trunking
  • 1. 802.1Q tagging and VLAN segmentation
    • 2. Inter-VLAN communication methods
      - Spanning Tree Protocol
      • 1. Loop prevention and convergence optimization
        • 2. STP/RSTP/MSTP operations
          Topic 2: Network Troubleshooting and Optimization- Fault diagnosis methodology
          • 1. Layered troubleshooting approach
            • 2. Packet analysis fundamentals
              - Performance optimization
              • 1. Latency and congestion analysis
                • 2. QoS principles and traffic prioritization
                  Topic 3: Network Fundamentals and Architecture- Enterprise network architecture design
                  • 1. Hierarchical network design (core/distribution/access)
                    • 2. High availability design principles
                      - OSI and TCP/IP model principles
                      • 1. Protocol stack behavior and interactions
                        • 2. Layer functions and encapsulation
                          Topic 4: IP Routing Technologies- Routing protocols
                          • 1. OSPF multi-area design and LSDB
                            • 2. BGP fundamentals and path selection
                              - Static and dynamic routing
                              • 1. Routing table behavior and longest prefix match
                                • 2. Route redistribution concepts
                                  Topic 5: IP Services and Network Services- NAT and ACL
                                  • 1. Source NAT and destination NAT
                                    • 2. Access control policy design
                                      - DHCP and DNS services
                                      • 1. DNS resolution workflow
                                        • 2. DHCP relay and allocation process
                                          Topic 6: Network Security and Reliability- High availability technologies
                                          • 1. Link aggregation and failover mechanisms
                                            • 2. VRRP and redundancy design
                                              - Network security mechanisms
                                              • 1. Device hardening principles
                                                • 2. Traffic filtering and policy control

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