Unlocking the Secrets of Authentication Authorization and Accounting

Unlocking the Secrets of Authentication Authorization and Accounting

AAA stands for Authentication Authorization and Accounting. It is a security service, which means no authorized person will not access your device or network. It is a service that stores usernames and passwords in a centralized location. .AAA consists of three A’s, which first A is for Authentication. Authentication means who is logged in to…

What are Computer Network topologies and their types?

What are Computer Network topologies and their types?

         Computer network topologies are the design of the network. Moreover, computer network topologies define how computers will connect to each other and how devices will communicate with each other. To create a network, you start by designing how computers will connect. Subsequently, the connectivity between the computers is called topology. There are two types of…

What is the OSI Model: Explain the Seven Layers in it?

What is the OSI Model: Explain the Seven Layers in it?

Introduction In 1977, the ISO developed an architecture for data exchange between computers. Finally, in 1984, ISO developed an architecture that they named the “OSI” (Open System for Interconnection) reference model. The OSI reference model is an architecture through which two computers conforming to the reference model and associated standards can exchange data between them….

What is CCNA Certification and when did Cisco start it?

What is CCNA Certification and when did Cisco start it?

CCNA certification stands for Cisco certified network associate. Cisco Systems Incorporation is an American multinational company offering certifications for its products, i.e. Routers, Switches, Firewall, etc. There are three levels of certification in the Cisco exam, of which CCNA is the first stage. In this course, students learn about the basics of Cisco routers, switches,…

Understanding Computer Network: Basic Concepts and Fundamentals and its Functions

Understanding Computer Network: Basic Concepts and Fundamentals and its Functions

Anything that is interconnected with each other then it’s called a network, whether it is a group of people or that is a group of nodes. So, in information technology, “A computer network is a group of nodes connected through a medium for the exchange of information.”The medium through which a computer network is formed…