Communication Networks

Introduction

The communication and information technology sector has already experienced significant expansion in the twenty-first century. Data has become one of every organisation’s most important assets, and the one with the greatest monopoly on it is referred to as a powerful organisation. The phrase “communication network” refers to the pattern of information flow directions. This task is carried out through various types of formal and informal routes, including traditional cables and wireless digital networks. 

• Communication networks are part of our critical information infrastructure, which is defined as “the computer resource, the loss of which shall have devastating consequences on national security, economics, public health, or safety” in the IT Act of 2000. 
• Other essential infrastructure, such as civil aviation, railways, shipping, power, nuclear, oil and gas, banking, finance, communication, information technology, intelligence agencies, law enforcement, space, defence, and government networks, rely on communications networks for connectivity. As a result, hazards can occur both within and outside of networks.
• The security regime has opened up to a new and most fundamental threat dimension in the virtual world in the shape of cybersecurity risks and the safety of communication network use in the age of data revolution, artificial intelligence, and machine learning. 
• The global economy is becoming increasingly digitised, and big data analytics processing and internet security are both under constant attack.
• Communication networks are used for storage, updating, and flow of information, critical infrastructure, governmental and administrative offices, defence organisations, and numerous private and public sector firms all rely on database management and IT in general. 
• Furthermore, initiatives by private firms, such as ‘Digital India’, which launched lowcost 4G and recently launched 5G, have expanded the geographical reach of the internet in our country.