Articles for category: Computer Network

Hinal Vithlani

Layers of OSI Model

The OSI model stands for Open Systems Interconnection model. The OSI model is also known as the ISO-OSI model as it was developed by ISO (International Organization for Standardization). It is a conceptual reference model that describes the entire flow of information from one computer to the other computer. The OSI model is a 7-layered model, so it ...

Neha Kumari

Hot Spot 2.0

Hotspot 2.0 (HS2), also known as Passpoint” or “Next Generation Hotspot, represents a significant evolution in public Wi-Fi access. This innovative standard, driven by the Wi-Fi Alliance and endorsed by the Wireless Broadband Alliance, simplifies and secures the process of connecting to public wireless hotspots. It’s built on the IEEE 802.11u standard, enhancing how devices discover and securely connect to network ...

Saksham Arya

How Does the Internet Work?

An internet is a huge network of networks that helps us to connect millions of computers together. These computers that are connected to each other through the internet can interact with each other over the internet. The Internet operates on a technique called packet switching. In packet switching, the data that is transferred among the different computers ...

Priyanshu Pandey

What is Firewall in Computer Network ?

A firewall can be hardware or software that controls a device’s secure in-flow and out-flow of data. It monitors network traffic and serves as a firewall between trusted and untrusted networks. Firewalls, particularly Next-Generation Firewalls, are designed to protect against malware and application-layer attacks. When you use a firewall as part of your security infrastructure, you configure your network with specific ...

Shivam Verma

What is localhost?

The hostname of the current server or system accessing the network is referred to as Localhost in networking. The network services running on the host are accessed using it through the loopback network interface. The loopback interface provides a way to connect back to the server while avoiding any local network interface hardware. The term ...

Shivam Verma

Token Bus (IEEE 802.4)

Token bus is a popular standard for token passing LANs. It was standardized by IEEE standard 802.4 and is mainly used for industrial applications. In a token bus LAN, stations are used to create a virtual ring, and tokens are then passed from one station to another using this virtual ring. Every station or node ...

Shivam Verma

Access Control in Networking

Access control is a data security method that allows organizations to manage who has access to their resources and data. Secure access control uses policies that ensure users are who they claim they are and are provided with the appropriate levels of access control. Along with providing access control features, Network access control (NAC) also covers ...

Priyanshu Pandey

Routing Information Protocol (RIP)

The RIP (Routing Information Protocol) is a distance-vector routing protocol. Routers that use the distance-vector protocol send all or a portion of their routing tables to their neighbors in routing-update messages. The Routing Information Protocol employs a distance vector algorithm to determine which path a packet should take to reach its destination. Each RIP router maintains its ...

Akshay Mishra

Digital Signature in Computer Network

Digital signatures allow us to verify the author, date, and time of signatures and authenticate the message contents. To verify the integrity and validity of digital messages and documents, it employs a cutting-edge mathematical technique. It helps us combat the issue of impersonation and tampering in digital communications and ensures that the contents of a message are ...

Priyanshu Pandey

TCP/IP Protocol Suite

TCP/IP stands for Transmission Control Protocol/Internet Protocol and is a suite of communication protocols that makes data exchange between two devices possible. TCP/IP specifies how data should be packetized, addressed, transmitted, routed, and received on a network by providing end-to-end communication. As compared to the OSI model, which is a theoretical model, TCP/IP is an application and practical ...