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Huawei H12-811_V1.0-ENU

H12-811_V1.0-ENU

Exam Code: H12-811_V1.0-ENU

Exam Name: HCIA-Datacom V1.0

Updated: Sep 02, 2026

Q & A: 880 Questions and Answers

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Huawei H12-811_V1.0-ENU Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Network Security and Access Control12%- ACL technology
  • 1. ACL classification and matching rules
  • 2. ACL configuration and application scenarios
- Basic network security
  • 1. Port security and protection measures
  • 2. Common attack types and defense methods
Topic 2: IPv6 Basics5%- IPv6 protocol features
  • 1. ICMPv6 and neighbor discovery
  • 2. Transition technologies overview
- IPv6 address system
  • 1. IPv6 address format and classification
  • 2. IPv6 address configuration
Topic 3: WAN Technology and Application7%- WAN connection types
  • 1. PPP authentication principles
  • 2. HDLC and PPP protocols
- NAT technology
  • 1. NAT principles and types
  • 2. NAT configuration and application
Topic 4: Data Communication and Network Basics8%- Huawei VRP system
  • 1. VRP operating principles and basic operations
  • 2. Data forwarding process
- Core protocols
  • 1. TCP and UDP characteristics and application scenarios
  • 2. ARP working principle
- Protocol models
  • 1. OSI reference model
  • 2. TCP/IP model and protocol stack
- Basic concepts of data communication and networks
  • 1. Routing and switching concepts
  • 2. Network architecture and standard organizations
Topic 5: Building IP Network with Interconnection and Interworking27%- IP routing fundamentals
  • 1. Layer 3 forwarding mechanism
  • 2. Routing table composition and routing principles
- IPv4 addressing
  • 1. IPv4 address classification and composition
  • 2. Subnet division and VLSM
- OSPF protocol basics
  • 1. OSPF working principle and characteristics
  • 2. OSPF single-area configuration
- Static routing
  • 1. Static route configuration and application
  • 2. Default route and floating static route
Topic 6: SDN and Network Automation Basics3%- Network automation
  • 1. Huawei automation tools overview
  • 2. Automation development foundation
- SDN concept and architecture
  • 1. Characteristics and application scenarios
Topic 7: Ethernet Switching Network Construction28%- VLAN technology
  • 1. Trunk and access link configuration
  • 2. VLAN principles and division methods
- Ethernet technology
  • 1. Switch working principle and MAC address learning
  • 2. Ethernet frame structure and standards
- Link aggregation and stacking
  • 1. Link aggregation principles and configuration
  • 2. Switch stacking technology overview
- Spanning Tree Protocol
  • 1. STP/RSTP principles and port states
  • 2. STP/RSTP configuration and optimization
Topic 8: Network Management and Maintenance5%- Fault diagnosis tools
  • 1. Device status and information query
  • 2. Ping and Tracert usage
- Basic network management
  • 1. SNMP protocol overview
  • 2. Log and alarm management

Huawei HCIA-Datacom V1.0 Sample Questions:

Question 1

Which of the following statements about the election of active ports in link aggregation LACP mode is correct?

A. Compare the interface priority first, if you cannot determine the superior one, continue to compare the interface number, the smaller the better
B. Only compare interface priorities
C. Only compare interface numbers
D. Compare device priorities


Question 2

In the label forwarding table of the MPLS device, for different routes (the next hop is also different), the outgoing label:

A. must be the same
B. may be the same
C. must be different


Question 3

Which of the following port numbers is used by network devices running SNMPv2c protocol to send Trap messages to the network management system by default?

A. 162
B. 6
C. 17
D. 161


Question 4

A company has applied for a class C IP address segment, but it needs to be allocated to 6 subsidiaries. The largest subsidiary has 26 computers. Different subsidiaries must be in different network segments. Then the network of the largest subsidiary the subnet mask should be set to?

A. 255.255.255.128
B. 255.255.255.224
C. 255.255.255.0
D. 255.255.255.192


Question 5

Which of the following packets are used for IPv6 stateless address auto-configuration? (Multiple choice)

A. RS
B. NA
C. NS
D. RA


Solutions:

Question 1
Answer: A
Question 2
Answer: C
Question 3
Answer: A
Question 4
Answer: B
Question 5
Answer: A,D

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