IT networks allows machines (e.g. computers, mobiles, fax machines, servers, laptops etc.) to communicate, transfers files, share resources and information. The network can be used for running a connected system of multi-user applications across the globe. These connected devices can facilitate central management where the connected PCs promote interoperability and standard of working together. Such system reduces the cost of operation and management (e.g. back up or security).
Small area network as found in shops or small offices are mostly LAN-based networks, whereas, larger area connectivity is provided by MAN (Metropolitan Area Network). LAN can be based on Ethernet or FDDI. WAN is used across continents and is based on ATM (Asynchronous Transfer Mode) technology and ISDN (Integrated Services Digital Network). LAN and WAN can be connected through T1 or T3 digital lease lines.
These connections use devices – bridge (to link two LANs), router, B-router or bridge router and gateway (connects two systems). These can be peer to peer without central control or server based. A dedicated server can provide server based networks and the server can be used to store confidential information, resources and applications. The server can handle a number of related applications from one place, where all the transactions and data can be secured easily. The connected computers to the server lines are client machines, which can help in processing information and sending the final output to server.
In a central network – the coupled machines (computers or other devices) exchange data where each device is called a node having a unique address i.e. the numeric quantities remembered by the computer (Example: 220.127.116.11). The DNS provides methods to translate mnemonic textual internet address to numeric. Port or the IP address identifies the host and IP port of the application. Some nodes have addresses – such as the web address. Data transmission on modern networks is based on packet switching.
Infiltrations and risks
Many new developments are consistently being made in IT networks where the risk factors and security hacks causes significant issues. Scripts can be used to get access into secured areas. These days even fax machines (i.e. fax number of the user) can be used as an entry point to unlawfully enter a network and execute a malware. Some entry points into the system could be all – in-one device where such devices have access to security that makes it vulnerable. The system can be exploited to access confidential data, whilst, not many provisions are offered even by the new devices to secure data. Such concerns are mostly overlooked by the users.
The use of a number of set of connections on devices such as mobiles, allows potential infiltrators to enter unauthorised network zones and gain access to sensitive information. There exists a need to enhance awareness about such risk factors.
Future IT networks
Studies in IT networking has led to the emergence of deep neural networks that involves diverse architectures and dissimilar networks – where the networks can allow the system to chose one of the most effective algorithms on its own, based on competition recognition and visualisation of data.
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