MindMap Gallery HCIA Digital Certification Examination Knowledge Points
This is a mind map about the knowledge points of the HCIA digital certification exam. The main contents include: advanced technology expansion, Huawei equipment operation and configuration, network design and troubleshooting, network security and management, wide area network and access technology, transmission layer and application layer protocol, network layer protocol and routing technology, physical layer and data link layer technology, and network basic concepts.
Edited at 2025-02-20 15:42:07This template shows the structure and function of the reproductive system in the form of a mind map. It introduces the various components of the internal and external genitals, and sorts out the knowledge clearly to help you become familiar with the key points of knowledge.
This is a mind map about the interpretation and summary of the relationship field e-book, Main content: Overview of the essence interpretation and overview of the relationship field e-book. "Relationship field" refers to the complex interpersonal network in which an individual influences others through specific behaviors and attitudes.
This is a mind map about accounting books and accounting records. The main contents include: the focus of this chapter, reflecting the business results process of the enterprise, the loan and credit accounting method, and the original book of the person.
This template shows the structure and function of the reproductive system in the form of a mind map. It introduces the various components of the internal and external genitals, and sorts out the knowledge clearly to help you become familiar with the key points of knowledge.
This is a mind map about the interpretation and summary of the relationship field e-book, Main content: Overview of the essence interpretation and overview of the relationship field e-book. "Relationship field" refers to the complex interpersonal network in which an individual influences others through specific behaviors and attitudes.
This is a mind map about accounting books and accounting records. The main contents include: the focus of this chapter, reflecting the business results process of the enterprise, the loan and credit accounting method, and the original book of the person.
HCIA Digital Certification Examination Knowledge Points
1. Network basic concept
OSI reference model and TCP/IP model
Comparison of functions and protocols of each layer (physical layer, data link layer, network layer, transmission layer, session layer, presentation layer, application layer)
Data encapsulation and decapsulation process
TCP/IP model four-layer structure (network interface layer, network layer, transport layer, application layer)
Network topology and equipment
Common network topology types (star, ring, bus, tree, mesh)
Network device functions (router, switch, firewall, hub, repeater)
2. Physical layer and data link layer technology
Physical layer media and transmission
Twisted pair wire (Cat5e, Cat6), fiber (single mode, multimode), wireless media
Physical layer interface standard (RJ45, SFP)
Data link layer protocol and technology
Ethernet (Ethernet) frame structure (destination MAC, source MAC, type, data, FCS)
MAC address format and function
VLAN basics (VLAN division, Access/Trunk port, and inter-VLAN communication)
STP (spanning tree protocol) principle and configuration (root bridge election, port status, BPDU)
Link aggregation (LACP, static aggregation)
3. Network layer protocol and routing technology
IPv4 protocol
IPv4 packet structure (version, TTL, protocol type, source/destination IP)
IP address classification (A/B/C/D/E) and subnet division (subnet mask, CIDR)
Principles of ARP and RARP protocols
ICMP protocol (Ping, Tracert implementation principle)
Static and dynamic routing
Static routing configuration and application scenarios
Dynamic routing protocol classification (distance vector, link status)
RIP protocol (version difference, timer, and anti-ring mechanism)
OSPF protocol basis (region division, Router ID, neighbor establishment process, DR/BDR election)
IPv6 technology
IPv6 address format and abbreviation rules
IPv6 address type (unicast, multicast, anycast)
IPv6 Neighbor Discovery Protocol (NDP)
IPv6 routing protocol (OSPFv3, RIPng)
4. Transport layer and application layer protocol
Transport layer protocol
The difference between TCP and UDP (reliability, connection method, header field)
TCP three-way handshake and four-way handshake process
Port number classification (famous port, registered port, dynamic port)
Application layer protocol
HTTP/HTTPS protocol (request method, status code)
DNS protocol (domain name resolution process, record type)
DHCP protocol (address allocation process, DORA process)
FTP protocol (active mode and passive mode)
SMTP/POP3/IMAP protocol (email transfer mechanism)
5. WAN and access technology
WAN protocol
PPP protocol (PAP/CHAP authentication, multi-link bundling)
HDLC protocol packaging format
MPLS Basics
MPLS tag forwarding principle (Label, FEC, LSP)
Basic concepts of MPLS VPN
6. Cybersecurity and management
Access control and security technology
ACL classification (standard ACL, extended ACL, named ACL) and configuration
NAT technology (static NAT, dynamic NAT, NAPT)
Firewall foundation (safe area, packet filtering principle)
Port security (MAC address binding, limiting the number of port MACs)
Network Management Protocol
SNMP protocol (working principle, MIB, Trap message)
Log management (Syslog, log level)
Network maintenance tools (Ping, Tracert, Telnet, SSH)
7. Network Design and Troubleshooting
Web Design Principles
Hierarchical network architecture (core layer, aggregation layer, access layer)
High availability design (device redundancy, link redundancy)
Troubleshooting Methods
Layered inspection method (physical layer → data link layer → network layer → application layer)
Common failure scenarios (VLAN configuration error, routing loop, ACL blocking)
8. Huawei equipment operation and configuration
VRP system basics
VRP command line structure (user view, system view, protocol view)
Configuration file management (save, backup, restore)
Device Initialization Configuration
Device login method (Console, Telnet, SSH)
Interface IP address configuration
System time and time zone configuration
9. Advanced technology expansion
QoS Basics
Traffic classification and labeling (DSCP, 802.1p)
Queue scheduling algorithm (FIFO, PQ, WFQ)
SDN and NFV concepts
SDN architecture (control layer and data layer separation)
NFV core idea (network function virtualization)