Lesson 1 Introduction to networking.pptx

Feb 11, 2025Download as PPTX, PDF0 likes4 views

Omar Fernandez

Basic concept and terminologies on networking

Network concepts
? Internet
? intranet
? extranet
? client-server
? peer-to-peer
? transmission types
o (unicast, multicast, broadcast),
? network devices including IoT

Network concepts
? Internet - a global computer network providing a variety of
information and communication facilities, consisting of
interconnected networks using standardized
communication protocols.

Network concepts
? Intranet - An intranet is a private network that allows
employees within an organization to communicate, share
information, and collaborate on tasks.
? Intranets are similar to the internet, but only authorized
users within an organization can access them.

Network concepts
? Extranet - is a secure network that allows authorized users
outside an organization to access internal information.
? Extranets are often used to improve communication and
collaboration between an organization and its partners.
How does an extranet work?
1. Extranets use firewalls and access controls to keep the network
separate from the public internet.
2. Users must enter credentials like a username and password to
access the network.
3. Extranets can use Virtual Private Networks (VPNs) to link external
users to the organization's network.

Network concepts
? Client-server - model is a computing system that allows
clients to access data and services from a server. The server
acts as a central hub that manages the data and provides
services to the clients.
How it works
1. A client, such as a web browser, sends a request to a
server for data or services
2. The server responds to the request with a message, such
as a file or the result of an authentication
3. The client receives the response from the server

Network concepts
? peer-to-peer - is a network architecture that allows
participants to share resources and services with each
other without a central server. In a P2P network, each
participant, or peer, acts as both a client and a server.

Network concepts
? transmission types
o (unicast, multicast, broadcast)
? Unicast is a type of
network
communication that
sends data from one
sender to one
receiver. It's similar to
a one-on-one
conversation.

Network concepts
? transmission types
o (unicast, multicast, broadcast)
? Multicast is a method of
sending data from one
source to multiple
recipients simultaneously.
It's a common network
protocol used to
distribute data efficiently,
especially for audio and
video streams.

Network concepts
? transmission types
o (unicast, multicast, broadcast)
? Broadcast transmission
is a communication
method that sends
information packets from
one node to all other
nodes on a network. This
allows multiple nodes to
receive the information
at the same time.

Lesson 1 Introduction to networking.pptx

Network concepts
? network devices including IoT - encompass a wide range of
devices that connect to the internet and can collect, send,
and receive data, including smart home appliances like
smart thermostats, security cameras, smart lights,
wearables like fitness trackers, industrial sensors, medical
devices, and more, all communicating through various
network protocols like Wi-Fi, Bluetooth, cellular networks,
and specialized IoT protocols like LoRaWAN and Zigbee.

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Lesson 1 Introduction to networking.pptx

1. Network concepts

2. Network concepts ? Internet ? intranet ? extranet ? client-server ? peer-to-peer ? transmission types o (unicast, multicast, broadcast), ? network devices including IoT

3. Network concepts ? Internet - a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.

4. Network concepts ? Intranet - An intranet is a private network that allows employees within an organization to communicate, share information, and collaborate on tasks. ? Intranets are similar to the internet, but only authorized users within an organization can access them.

5. Network concepts ? Extranet - is a secure network that allows authorized users outside an organization to access internal information. ? Extranets are often used to improve communication and collaboration between an organization and its partners. How does an extranet work? 1. Extranets use firewalls and access controls to keep the network separate from the public internet. 2. Users must enter credentials like a username and password to access the network. 3. Extranets can use Virtual Private Networks (VPNs) to link external users to the organization's network.

6. Network concepts ? Client-server - model is a computing system that allows clients to access data and services from a server. The server acts as a central hub that manages the data and provides services to the clients. How it works 1. A client, such as a web browser, sends a request to a server for data or services 2. The server responds to the request with a message, such as a file or the result of an authentication 3. The client receives the response from the server

7. Network concepts ? Client-server

8. Network concepts ? peer-to-peer - is a network architecture that allows participants to share resources and services with each other without a central server. In a P2P network, each participant, or peer, acts as both a client and a server.

9. Network concepts ? transmission types o (unicast, multicast, broadcast) ? Unicast is a type of network communication that sends data from one sender to one receiver. It's similar to a one-on-one conversation.

10. Network concepts ? transmission types o (unicast, multicast, broadcast) ? Multicast is a method of sending data from one source to multiple recipients simultaneously. It's a common network protocol used to distribute data efficiently, especially for audio and video streams.

11. Network concepts ? transmission types o (unicast, multicast, broadcast) ? Broadcast transmission is a communication method that sends information packets from one node to all other nodes on a network. This allows multiple nodes to receive the information at the same time.

13. Network concepts ? network devices including IoT - encompass a wide range of devices that connect to the internet and can collect, send, and receive data, including smart home appliances like smart thermostats, security cameras, smart lights, wearables like fitness trackers, industrial sensors, medical devices, and more, all communicating through various network protocols like Wi-Fi, Bluetooth, cellular networks, and specialized IoT protocols like LoRaWAN and Zigbee.

14. network devices including IoT

15. Questions????

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Lesson 1 Introduction to networking.pptx

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