Digital security in modern day world is essential need of any type of business and personal use of internet and communication systems. In typical network environment various subsystems collaborate to run business operations which generates data and transactions in day-to-day business, all these operations are done using some software and
Security in general and physical security in particular is very crucial for any origination. Origination’s information security policy holds key to securing organization assets. Security controls can be categorized into three models, administrative controls, physical controls and technical controls, these controls are generally the first line of defense in
Multiplexing is the process of sending data from multiple source over shared physical medium, multiplexer is used to represent multiplexing mechanism. Similarly, demultiplexing is inverse process of multiplexing; demultiplexer separates data received from multiple sources and sends to intended receivers; demultiplex is technique used to denote demultiplexing. There are four
Transmission media in general, is term referred to path between sender and receiver participating in network communication. Guided transmission media and Unguided transmission media are terms used to differentiate cable from wireless communication mechanism. If you categorize transmission by energy then it can be electric signal, radio wave or light.