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i + WIRELESS NETWORKING TECHNOLOGY
In a wireless networking technology, no wires or physical media is used for connecting computers.
It uses electromagnetic waves like infrared, microwave and radio waves for transmission of the
data. The choice of the technology depends on the distance and speed of transmission. There
are two types of wireless technologies named Wi-Fi and Bluetooth.
Wi-Fi
It refers to Wireless Fidelity, which lets you connect to the
Internet without any wired connection from your PC. It is a
popular form of wireless connection as it does not require
cables.
It can be used to get connected through a variety of devices
like laptops, digital cameras, smartphones, gaming consoles,
etc. To connect to a Wi-Fi network a hotspot is required.
The hotspot acts as a gateway to the Internet, you need to
Wi-Fi
connect to hot-spot to be able to connect to the Internet.
Bluetooth
Bluetooth is a technology that enables wireless communication
between a low-power consumption devices within a short
range (1 meter, 10 meters, 100 meters). It facilitate for different
devices to communicate with each other when they are in a
specified range. The latest version of bluetooth, Bluetooth 5.4
technology provides data transfer speed up to 2 Mbps.
Bluetooth
It provides a way to connect and exchange information between devices such as mobile phones,
telephones, laptops, printers, personal computers, GPS receivers (Global Positioning System)
through 2.4 GHz short range radio frequency bandwidth.
i + PROTOCOL
Protocol is a set of rules that governs the communication between the computers on a network.
Certain network protocols and standards are to be followed in order to ensure that your computer
can communicate with another computer over a network.
Different types of protocols used for different operations on the Internet are as follows:
• Hypertext Transfer Protocol (HTTP): It is a set of rules that defines how the Web pages
transfer information like document, file, image, video between computers over Internet.
• Hypertext Transfer Protocol Secure (HTTPS): It is secure version of HTTP. The information
is converted into code to prevent unauthorised access. Nowadays, most of the websites use
the HTTPS protocol instead of HTTP.
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