This Presentation About the Networking Components.

1. Basic
Networking
Components
By: A.Nirojan
Student ID : J/IT/18/12/01
Batch : CSD – 12
Assessor : Mr.Neroojan

2. Contents
IntroductionTo Network
Platforms Of Networking System
Networking Devices

3. Introduction To Network
A network consist of two or more devices that are linked in order to share
resources and they can communicate.
Why networking?
Sharing Communications
Sharing Hardware or Software
Centralize administration and support
The networking devices are playing main role in creating a network.
Eg: Hubs Switch
Routers Modem
NIC Repeaters

4. Platforms Of Networking System
• Client / Server
• Peer- To - Peer
Clients / Server
Clients requests (for file or any resource) the server will respond.
Usually clients are desktop computers with their own local storage and OS.
Centralized management help in administering the whole setup.
Easy to backup data and when data lost happen it can be recovered easily and
efficiently.

5. Peer -To – Peer
A peer-to-peer network is a group of computers, each of which act as a node for sharing files
within the group, each computer act as the server for the files upon it.
Each computer is responsible for their resources like files or any other resources.
 There is no need for full time administration.
In peer-to-peer network, all nodes are act as servers and as well as client therefore no need for
dedicated server.

6. Networking Devices
Hubs
Hubs do not read any of data passing through them and are not
aware of their source or destination.
Hubs work at the physical layer of the OSI model.
The newer types of hubs offered 10 Mbps and 100 mbps capabilities.

7. Switch
A switch enabling network devices to talk to talk to each other
efficiently through sharing information and resources.
 Switches manage the flow of data across network by transmitting a
received network packet only to the one or more devices for which
the packet is intended.

Features of Switch
Easy to configure
Easy to manage
Energy efficiency
Support for multiple native languages.

8. Comparison Of Switch And Hub

9. Routers
• Router is a hardware device designed to receive, analyze and move incoming packets (data)
to another network.
• A router may include firewall, VPN handling and other security functions and the router is a
network layer in the OSI reference model.
• A data packet is typically forward from one router to another router through the networks.
Features of Router
o Routers haveWPA /WPA2 personal security
o Virtual Private Network Capability.
o Every router includes a firewall.
o Fast data transfer rate.

10. Modem
Modem is a short form for Modulator / Demodulator.
Modems translate digital signals from a computer into analog signals that travel to
conventional phone lines or encode digital information for transmission and
demodulates signals to decode the transmitted information.
Features of Modem
The maximum speed of modem is 56 Kbps.
Auto answering
Fax Capability
Voice or Data communication.

11. NIC
• A Network Interface Card (NIC) provides the computer with dedicated full
time connection.
• It is in the circuit board or card that is installed in a computer so that can
connect to the network.
When choosing NIC the factor will consider:
Performance
Configuration
Compatibility
Sending and controlling data

12. Repeaters
It is a device that receives a digital signal on an
electromagnetically or optical transmission medium
and regenerates the signal along the next leg of the
medium.
An important point to be noted about the repeaters
is that they do not amplify the signal.
Features of Repeater
Regenerates the original bit pattern.
It works on the physical Layer.
Repeater forwards the refreshed signal.