"Introduction to Networks" is the first module in the Cisco Certified Network Associate (CCNA) training. It lays the foundation for all networking knowledge, making it essential for anyone starting in IT or networking.

🧠 Main Objectives of CCNA: Introduction to Networks It is designed to teach you:

How networks operate

What network devices do (like routers, switches, firewalls)

How data travels across a network

Basic configuration and troubleshooting of Cisco devices

🔑 Key Topics Covered 1. Networking Fundamentals Purpose and function of networks

Types of networks: LAN, WAN, WLAN

Introduction to the OSI and TCP/IP models

Data encapsulation and transmission

1. Network Devices & Components Routers, switches, hubs, modems

NICs (Network Interface Cards)

Cabling (UTP, fiber), and wireless connections

1. IP Addressing & Subnetting IPv4 and IPv6 concepts

Subnetting and calculating IP ranges

Understanding default gateways and masks

1. Basic Device Configuration Using Cisco CLI (Command Line Interface)

Basic commands for:

Hostname

Passwords

Interfaces

IP addressing

Saving and viewing configurations

1. Switching Concepts MAC addressing

ARP (Address Resolution Protocol)

Switching logic and frame forwarding

Basic VLAN concepts

1. Network Protocols & Communication HTTP, DNS, DHCP, FTP, ICMP

Importance of protocols in client-server communication

1. Basic Network Troubleshooting Ping and traceroute

Using command-line tools to verify connectivity

Troubleshooting IP configurations

🛠️ Hands-On Labs You’ll practice:

Configuring routers and switches

Setting up IP addresses

Connecting and testing network topologies

Simulating networks using Cisco Packet Tracer

🎓 Outcome After completing Introduction to Networks, you’ll:

Understand how networks function

Be able to build and test basic network topologies

Be ready for deeper networking topics in later CCNA modules https://www.sevenmentor.com/ccna-course-in-pune-area.php

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