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Computer Network Articles
Page 120 of 122
Cyber System Security
Cyber System Security refers to the protection of interconnected computer systems, networks, and digital infrastructure from cyber threats and attacks. It encompasses a comprehensive approach to safeguarding Information Technology systems, networking components, and digital assets from unauthorized access, data breaches, and malicious activities. As technology advances, organizations face increasing risks and costs to maintain secure operations. Cyber System Security protects not only the technical infrastructure but also personal data, credentials, and sensitive information stored within these systems. Cyber System Security Components Cyber ...
Read MoreHow to add Tokens to the test network Metamask?
In blockchain development, testing becomes crucial for quality assurance and optimization without incurring real cryptocurrency costs. When developing decentralized applications (DApps) or smart contracts, every transaction requires cryptocurrency, making development expensive on mainnet. Test networks provide a solution by offering test tokens (also called test faucets) that simulate real transactions without monetary value. These dummy tokens allow developers to experience authentic blockchain interactions during the development phase. This guide demonstrates how to add test tokens to your MetaMask wallet using Ethereum test networks. Setting Up MetaMask Wallet Installing MetaMask Extension Step 1: Visit https://metamask.io and ...
Read MoreMedium Access Control Sublayer (MAC sublayer)
The Medium Access Control (MAC) sublayer is a critical component of the data link layer in the OSI reference model. It manages how devices access and share transmission media, controlling data flow and preventing collisions in shared network environments. The MAC sublayer acts as an intermediary between the upper layers and the physical transmission medium, ensuring orderly and efficient data transmission across networks like Ethernet, Wi-Fi, and other shared media technologies. MAC Layer in the OSI Model The data link layer (Layer 2) of the OSI model is divided into two distinct sublayers: Logical ...
Read MoreWhat is Display Filter Macros in Wireshark?
Within the domain of network analysis and packet inspection, Wireshark stands as a powerful and widely-used tool. One feature that significantly enhances Wireshark's functionality is the use of display filter macros, which streamline the process of filtering and focusing on specific packets of interest within captured network traffic. What are Display Filter Macros? Display filter macros are pre-defined, reusable filter expressions that act as custom shortcuts for filtering specific types of network traffic. They encapsulate complex display filter expressions under a single name, allowing users to invoke them quickly without repeatedly typing lengthy filter syntax. Instead of ...
Read MoreHow to Keep Your Browser Safe on Work and Home Networks (with an Optional Chrome VPN Layer)
A single thoughtless click on a browser tab can cause hours of frantic IT calls, network scans, and security resets in numerous workplaces. When you seek a recipe or a good offer online, you may encounter pop-ups or phishing attempts that compromise security. These incidents happen frequently in our interconnected world. The browser serves as the front entrance to the Internet, whether you're in a busy office or at home. Like any front door, it can be secured and reinforced, or left open for threats to enter. This article discusses practical, step-by-step methods to strengthen your browser security across ...
Read MoreDifference Between Amplification and Retransmission
Amplification and retransmission are two fundamental techniques used in communication systems to improve and extend signal transmission over long distances and challenging environments. Amplification increases the strength of a signal without changing its frequency or shape, whereas retransmission involves receiving a signal and transmitting it through a different channel or path to overcome obstacles and extend communication range. What is Amplification? Amplification is the process of increasing the strength or amplitude of a signal while preserving its frequency and shape characteristics. Amplifiers are electronic devices that boost signal strength and efficiency using external power sources. Common ...
Read MoreADD PPP Command in PPP Configuration
PPP (Point-to-Point Protocol) is a network protocol that allows communication between two devices over a point-to-point connection. It is widely used for establishing and managing Internet connections over dial-up, DSL, and other types of connections. PPP uses a variety of commands to configure and manage communication sessions between two devices. One such command is the ADD PPP command. This article discusses the ADD PPP command in PPP configuration, its significance, and various examples of its usage. What is ADD PPP Command? The ADD PPP command is a configuration command used to create a new PPP session on ...
Read MoreWhat is Real-time Communication in LAN?
Real-time communication in LAN refers to network communication where data must be delivered within strict timing constraints to ensure proper system operation. Unlike traditional data transfer, real-time communication prioritizes meeting deadlines over maximizing throughput. In LAN environments, real-time communication is crucial for applications like VoIP calls, video conferencing, industrial control systems, and live streaming where delays can cause system failures or poor user experience. Real-time Communication in LAN Source Device LAN Switch Priority Queue ...
Read MoreDifferentiate between Data Privacy and Data Security.
Understanding the distinction between data security and data privacy is crucial for organizations managing sensitive information. While these concepts are closely related and often work together, they serve different purposes in protecting information assets. Data Security Data security uses physical and logical strategies to protect information from cyber attacks, unauthorized access, and accidental or intentional data loss. It is a comprehensive technology and technique designed to prevent unauthorized access, intentional loss of sensitive data, and accidental loss or corruption of sensitive data. Data security represents a technologically sophisticated, holistic approach that secures every network, application, device, and ...
Read MoreWhat are Max parallel HTTP connections in a browser?
In this tutorial, we will learn about Max parallel HTTP connections in a browser and how they impact web page loading performance. To understand this topic, we will explore what parallel connections are, the reasons behind connection blocking, browser limitations, and optimization strategies. What Are Parallel Connections? Instead of downloading embedded objects sequentially (original HTML page, first embedded item, second embedded object, etc.), browsers can establish multiple parallel connections to simultaneously carry out numerous HTTP transactions. Sequential vs Parallel HTTP Connections Sequential Loading ...
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