Vipin Kumar Tiwari

IN THIS ARTICLE (a) Introduction (b) What is Network? (c)    Network Components (b) Types of Network (c) What is Network Connection? (d) Types of Network Connections (e) What is Network Protocol ? (f) What is Network Packets? (g) What is Network Topology? (h) Types of Network Topology (i)  Why Networks Matter Today (j)  Summary Introduction In the digital age, networks form the foundation of nearly every online interaction. From checking emails to streaming videos and managing remote teams, networks quietly enable seamless communication between devices and systems. But what exactly is a network? How do they work, and why are they so essential in both personal and business environments? This article breaks down the basics of computer networks — including their types, components, and importance — in a simple, beginner-friendly manner. What is Network? A Network is a group of  two or more interconnected devices for information or resource sharing and communicati...

Prerequisites https://vipintiwarionline.blogspot.com/2023/10/information-security.html https://vipintiwarionline.blogspot.com/2023/10/cyber-security.html Introduction Although the terms information security and cyber security are frequently used interchangeably in today's digitally first world, they are not exactly the same. Businesses, Information Security Consultants, Cyber Security Engineers, and anybody else worried about safeguarding sensitive data must comprehend the difference.  What is Information Security? Information Security (InfoSec) refers to the practice of protecting all forms of information —whether digital, physical, or verbal—from unauthorized access, disclosure, alteration, or destruction. It’s a broad discipline that includes: Data governance and compliance (e.g., IS Audit, RBI, IRDAI, NPCI, UIDAI, PCI-DSS, GDPR, HIPAA etc.) Physical security of documents and devices Access control and identity management Risk management and business contin...

Prerequisites & Important Definitions: https://vipintiwarionline.blogspot.com/2023/10/information-security.html " Threat  is potential cause of an unwanted incident, which may result in harm to a system or organization"  (ISO IEC 27000 : 2017 Clause 2.83) " Attack  is an attempt to destroy, expose, alter, disable, steal or gain unauthorized access to or make unauthorized use of an asset "  (ISO IEC 27000 : 2017 Clause 2.3) Introduction  The Cyber Security is a multidisciplinary field. The primary objective of cybersecurity is to defend digital systems, networks, and data against threats, vulnerabilities, and attacks. It is essential in today's interconnected world, where reliance on technology and the internet has made people, organizations, and governments vulnerable to a number of cyberthreats. Cyberthreats: These are criminals or hacker-initiated online behaviors or acts that target weaknesses in computer networks, systems, and data. Malware (such as vi...

Prerequisites & Important Definitions " Information  is meaningful and useful data which can be processed, refined, analyzed, structured, relevant to the criteria, verifiable and documented as needed" "Information is an  asset , has value for any organization like other important assets."  " Information System  can be applications, services, information technology assets, or other information handling components"  (ISO IEC 27000 : 2017 Clause 2.39) " Threat  is potential cause of an unwanted incident, which may result in harm to a system or organization"  (ISO IEC 27000 : 2017 Clause 2.83) " Attack  is an attempt to destroy, expose, alter, disable, steal or gain unauthorized access to or make unauthorized use of an asset "  (ISO IEC 27000 : 2017 Clause 2.3) " Information security   is preservation of confidentiality, integrity and availability of information " (ISO IEC 27000 : 2017 Clause 2.33) Introduction  Informatio...