IT WORKSHOP1 S T SESSION

CTS VERTICALMSP EGYPT

Networking Fundamentals

Network?

A group of components or devices that are connected together to give the user a certain service or application.

Network Components

End DevicesIntermediate DevicesConnectivity

End Devices

End Devices

End Devices

Intermediate Devices

Intermediate Devices

Network Access Devices:They provide connectivity to the

networkLike:

HubSwitch

Intermediate Devices

Network Access Devices:They provide connectivity to the

networkLike:

HubSwitch

Intermediate Devices

Internetworking DevicesConnect individual Networks.

Like:Router

Connectivity

The medium that provides the channel over which message travels from source to destination.

-WiredMetallic wires: Electrical impulsesOptical Fibers: Pulses of light (infrared

or visible light)-Wireless

Electromagnetic waves

Different Topologies

Topology: How devices are connected together.

Reference Models

Divide Complex functions into simpler components

OSI and TCP-IP Models

Addressing

Port NumberIP AddressMAC Address

Port Number

In order to pass data streams to the proper applications, the transport layer must identify the target application. To accomplish this, it assigns an application identifier called “Port Number”.

Source port number and destination port number

Port Number

IP Address

An Internet Protocol address is a numerical label assigned to each device participating in a computer network that uses the Internet Protocol for communication.

Source IP address and destination IP address.

IP Address

IP version 4 : 32 bits- Broadcast Address- Unicast Address- Multicast Address

IP version 6 : 128 bits

Client Server Model

Client : The device requesting the information.

Server: The device responding to the request.

DNS (Domain Name Server)

DHCP (Dynamic Host Configuration Protocol)

Server Access

Wired (cables)Telnet

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