Huawei H12-811 : HCIA-Datacom V1.0

  • Exam Code: H12-811
  • Exam Name: HCIA-Datacom V1.0
  • Updated: Sep 06, 2026
  • Q & A: 732 Questions and Answers

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Huawei H12-811 Exam Syllabus Topics:
SectionWeightObjectives
Topic 1: WLAN Fundamentals5%-10%- Wireless Networking
  • 1. Wireless Access Principles
  • 2. WLAN Architecture
  • 3. AP and AC Concepts
Topic 2: Data Communication Network Basics15%-20%- Network Models and Protocols
  • 1. TCP/IP Protocol Stack
  • 2. OSI Reference Model
  • 3. Ethernet Fundamentals
- IP Addressing
  • 1. Subnetting
  • 2. IPv6 Fundamentals
  • 3. IPv4 Addressing
Topic 3: Network Security Fundamentals5%-10%- Security Technologies
  • 1. AAA
  • 2. ACL
  • 3. Common Network Threats
Topic 4: Network Management and O&M5%-10%- Operations and Maintenance
  • 1. Fault Diagnosis
  • 2. Device Management
  • 3. SNMP
Topic 5: SDN and Network Automation5%-10%- Emerging Technologies
  • 1. Network Programmability
  • 2. SDN Fundamentals
  • 3. Automation Basics
Topic 6: Switching Technologies25%-30%- VLAN Technologies
  • 1. Trunk Links
  • 2. Inter-VLAN Communication
  • 3. VLAN Principles
- Layer 2 Network Optimization
  • 1. MAC Address Learning
  • 2. STP and RSTP
  • 3. Link Aggregation
Topic 7: Routing Technologies25%-30%- Dynamic Routing
  • 1. OSPF Fundamentals
  • 2. Routing Table Management
  • 3. Route Advertisement
- IP Routing Fundamentals
  • 1. Default Routing
  • 2. Route Selection
  • 3. Static Routing
Huawei HCIA-Datacom V1.0 Sample Questions:

Question 1

From a security perspective, router A refuses to receive OSPF packets. ICMP packets received from the cO/0/1 interface. Which of the following commands can achieve this requirement? ()

A. acl rumber 300o rule 5 deny ospf rule 10deny icmp interface GigabitEthernet0/0/1 traffic-filter inbounD.ac1300o#
B. acL rumber 300o rule 5 deny 89 rule 10 deny icmp interface GigabitEthernet0/0/1 traffic-filter inbounD.ac1 30oo#
C. acl rumber 2000 rule 5 deny 89 rule 10 deny 1 interface GigabitEtherneto/0/1 trafficfilter inbounD.ac12000#
D. acl number 3000 rule 5 deny 89 rule 10 deny 1 interface GigabitEtherneto/0/1 trafficfilter inbounD.aci 3000


Question 2

What kind of packets does the OSPF protocol use to discover and maintain neighbor relationships? ()

A. HELLO
B. DD
C. LSR
D. LSU


Question 3

What is the main function of the DHCP DISCOVER message? ()

A. Used by the client to find the DHCP server
B. The server's confirmation response to the REQUEST message
C. The client requests configuration confirmation, or renews the lease
D. The DHCP server is used to respond to the DHCP DISCOVER message, which carries various configuration information


Question 4

Which authorization modes are supported by AAA on Huawei ARG3 series routers? ()*

A. Not authorized
B. Authorization after successful RADIUS authentication
C. Local authorization
D. HWTACACS authorization


Question 5

As shown in the picture. About OSPF topology and configuration. Which of the following statements is correct? () (Single-choice question)

A. R1 and R2 can establish a stable OSPF neighbor relationship
B. As long as the interface network type of R1 is restored to the default broadcast type, R1 and R2 can establish a stable neighbor relationship
C. R1 is more likely to become DR than R2, because its interface DR priority value is smaller
D. As long as the interface network type of R1 is restored to the default broadcast type, and the hello time is adjusted to 10s, R1 and R2 can establish a stable neighbor relationship


Solutions:

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

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