CCNA (Cisco Certified Network Associate)

I will update my contents daily with one topic

Introduction: The CCNA certification is one of the most sought-after certifications in the field of computer networking. This certification is offered by Cisco Systems and is designed to validate the knowledge and skills of network professionals in the installation, configuration, and troubleshooting of Cisco networking equipment.

In this ebook, we will provide a comprehensive guide to help you prepare for the CCNA certification exam. We will cover all the topics.

CONTENTS

Network Fundamentals

Media (Wired & Wireless)
Devices
Topology

Network Types
Cabling
OSI Model
TCP/IP Model
IPv4
IPv6
Subnetting
Router Component
Router Startup Process
Router Modes
Router IOS Backup & Restore
Router Password Configuration
Router Password Recovery
Static Routing
Default Routing
RIP Routing
EIGRP Routing
OSPF Routing
Standard & Extended ACL
Security Device Manager
Domain Name System (DNS)
DHCP
Static NAT
Dynamic NAT
PAT
Lease Line
Frame Relay
IPv6 RIP Configuration
IPv6 EIGRP Configuration
IPv6 OSPF Configuration
Switch Basic Configuration
VLAN Configuration
VTP Configuration
STP Basic Information
Ether Channel
Telnet
DHCP Relay Agent

Network Fundamentals:

Media: Wired & Wireless.

Wired (Physical) : UTP, STP, ISTP, Co-axial cable, Fibre optic cable.

UTP (Unshielded twisted pair cable) - A popular type of cable that consists of two unshielded wires twisted around each other. Due to its low cost, UTP cabling is used extensively for local-area networks (LANs) and telephone connections. All these cables are identified as category in the market. Connector Used: RJ45, Range: 100 m

Cat 1: 2 Mbps, Cat 2: 4 Mbps, Cat 3: 8 Mbps, Cat 4: 10 Mbps, Cat 5: 100 Mbps, Cat 5E: 100 Mbps

Cat 5 cables are not threaded, Cat 5E cables are threaded for keeping the cables straight.

Shielded Twisted Pair Cable(STP) – A type of copper telephone wiring in which each of the two copper wires that are twisted together are coated with an insulating coating that functions as a earthing for the wires. The extra covering in shielded twisted pair wiring protects the transmission line from electromagnetic interference leaking into or out of the cable. STP cabling often is used in Ethernet networks, especially fast data rate Ethernets.

Cat 6: 100 Mbps
Connector Used: RJ45
Range: 100 m

Inside Shielded Twisted Pair Cable (ISTP) – A type of STP cable in which each wire is covered with plastic. Very less interference and more protection to the wires.

Cat 7: 100 Mbps
Connector Used: RJ45
Range: 100 m

Co-axial cable - A type of electric cable that is used to send telegraph, telephone, and television signals.

Speed: 10 Mbps
Connector Used: For Data -> BNC(British Novel Connector)
For T.V -> Balloon Jack

Two types of co-axial cables:
i) Thinnet – 350 m.
ii) Thicknet – 500 m.

Fibre optic cable – A type of cable consisting of one or more thin flexible fibres with a glass core through which light signals can be sent with a very little loss of strength.

Range: 2 to 3 Km
Speed: Upto 32 Gbps

There are 2 types of FOC:
i)Single Mode FOC -> Connector Used: Subscriber Connector
ii)Multi Mode FOC -> Connector Used: State Tip Connector

Wireless – It is the process of signal transmission from one end to another end.

Devices: PC,HUBS, SWITCHES, MODEM,ROUTERS,FIREWALL,AMPLIFIER,REPEATER,LAN CARD.

PC->A Computer is an electronic machine that can solve different problems, process data, store & retrieve data and perform calculations faster and efficiently than humans.

HUB-> It was the first networking device which is used for, To connect two or more TCP/IP devices with each other.