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5.4 Understand Wireless Network Security (5.4.2 Types of Wireless Network,…
5.4 Understand Wireless Network Security
5.4.1 Explain wireless network
Wireless networks are computer networks that are not connected by cables of any kind.
The use of a wireless network enables enterprises to avoid the costly process of introducing cables into buildings or as a connection between different equipment locations.
Wireless networks use radio waves to connect devices such as laptops to the Internet, the business network and applications.
5.4.2 Types of Wireless Network
a. Based on Type of connection: Peer-to-peer Networks
In a P2P network, the "peers" are computer systems which are connected to each other via the Internet.
Files can be shared directly between systems on the network without the need of a central server.
Each computer on a P2P network becomes a file server as well as a client.
b. Extension to Wired Nework
A wired network is a common type of wired configuration.
Most wired networks use Ethernet cables to transfer data between connected PCs.
Extensions points are used if a single access point is not able to cover the entire area
b. Multiple Access Point
An access point is a device, such as a wireless router, that allows wireless devices to connect to a network.
Access points are typically hardwired to other devices, such as network switches or broadband modems.
b. LAN-to-LAN Wireless Network
A LAN is a network of connected devices hat exist within a specific location.
LANs may be found in homes, offices, educational institution or other areas.
A LAN may be wired, wireless, or a combination of the two. A standard wired LAN uses Ethernet to connect devices together.
Wireless LANs are typically created using a Wi-Fi signal. If a router supports both Ethenret and Wi-Fi connections, it can be used to create a LAN with both wired and wireless devices.
c. Based on Geography
a. WLAN (Wireless Local Area Network)
Links two or more devices using a wireless distribution method, providing a connection through access points to the wider Internet.
b. WWAN (Wireless Wide Area Network)
Covers large areas such as neighboring towns and cities.
WWAN services are typically delivered to smart phones and other handheld devices sold by cellular service providers and their retail partners but other mobile devices can use them as well.
c. WPAN (Wireless Personal Area Network)
Interconnects devices in a short span, generally within a person’s reach.
d. WMA (Windows, Media, Audio)
A Microsoft file format for encoding digital audio files similar to MP3 though can compress files at a higher rate than MP3.
WMA files, which use the ".wma" file extension, can be of any size compressed to match many different connection speeds, or bandwidths.