Huawei Certification HCIA-Datacom

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This document's main purpose is to provide basic datacom knowledge. It aims to introduce fundamental concepts in data communications.

Module 3 covers the working process and principles of switches. It explains how switches manage data flow and connect devices on a network.

Module 7 introduces the fundamentals of WAN (Wide Area Network) technology. This module focuses on how networks connect across large geographical distances.

Module 8 explores the working principles of SNMP (Simple Network Management Protocol) and SDN (Software-Defined Networking) based NMS (Network Management System) and O&M (Operations and Maintenance). These technologies help in managing and monitoring networks.

Module 11 focuses on the architecture and construction practices of campus networks. It delves into the design and implementation of networks within a building or a group of buildings.

Module 10 delves into the principles and configuration of VLANs (Virtual Local Area Networks). VLANs allow you to create logical groups of devices within a network.

Module 9 introduces the fundamentals of IPv6 (Internet Protocol version 6). IPv6 is the next generation of IP addressing that is designed to handle the growing number of internet devices.

Module 5 introduces several important network services: TFTP, FTP, DHCP, and HTTP. These protocols facilitate file transfer, address allocation, and web communication.

Module 4 covers the basics of network security and access control. It explores concepts like firewalls, user authentication, and data encryption.