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Articles on Trending Technologies
Technical articles with clear explanations and examples
Soft Real-time Communication in LAN
Soft Real-time Communication in LAN refers to a network communication approach where data transmission has timing constraints, but occasional delays or missed deadlines are acceptable without system failure. Unlike hard real-time systems where missed deadlines are catastrophic, soft real-time systems can tolerate some performance degradation while maintaining overall functionality. In Local Area Networks, soft real-time communication is essential for applications like video conferencing, voice over IP (VoIP), and multimedia streaming, where slight delays are noticeable but don't render the service unusable. Soft Real-time vs Hard Real-time Communication Soft Real-time ...
Read MoreWhat is Ethernet evolution in computer networks?
Ethernet was developed at Xerox PARC between 1973 and 1974. Engineer Bob Metcalfe invented it for interconnecting advanced computer workstations, making it possible to send data to one another and to high-speed laser printers. It was originally intended to create a network in a small area known as a Local Area Network (LAN). Ethernet has since evolved to become the dominant wired networking technology worldwide. Ethernet Evolution Timeline 1983 − The first iteration of Ethernet 10Base-5 was released, operating at 10 Mbps using thick coaxial cable. 1985 − Thin coaxial cable (10Base-2) was ...
Read MoreWhat is delay, the performance metric of the network layer?
The performance of a network can be measured in terms of Delay, Throughput, and Packet Loss. Network delay is a critical performance metric that affects user experience and application performance. Let us understand the concept of delay and its various types in network communication. What is Network Delay? Network delay is the total time taken for a packet to travel from its source to its destination. As a packet traverses through the network, it encounters multiple types of delays at different stages of its journey. Four Types of Network Delay ...
Read MoreTop 10 Common Security Log Sources
In this article, we will explore the top 10 common security log sources that organizations use to monitor and protect their IT infrastructure. Security log sources are data generators that create event logs containing records of system activities, user actions, and security events. These logs serve as crucial evidence when security incidents occur, helping security specialists identify threats, analyze attack patterns, and respond to breaches effectively. Event logs contain software and hardware-related information that enables security teams to detect bugs, risks, and threats within their systems. Every organization should implement comprehensive log analysis based on regulatory requirements and established ...
Read MoreComputer Networks Cheat Sheet
Computer networks encompass various types including LANs, WANs, MANs, and VPNs. Each network type has its own set of protocols, standards, and technologies that enable communication and data exchange. Understanding computer networks and their protocols can be overwhelming, which is why a comprehensive cheat sheet becomes invaluable for quick reference and troubleshooting. Types of Networks Local Area Network (LAN) A LAN connects devices within a small geographic area, such as a building or office. It consists of switches, routers, and cables that interconnect computers, printers, and servers within the local premises. LANs typically offer high-speed connectivity and ...
Read MoreWhat is FDDI in the Computer Network?
FDDI stands for Fiber Distributed Data Interface. It is a collection of ANSI and ISO standards for data transmission on fiber-optic lines in a local area network (LAN) that can extend up to 200 km (124 miles). The FDDI protocol is based on the token ring protocol and provides high-speed data transmission at 100 Mbps. FDDI is generally implemented as a dual token-passing ring topology, suitable for campus networks and building backbones. This dual-ring architecture provides fault tolerance, making it ideal for mission-critical network infrastructure. FDDI Architecture FDDI cabling consists of two fiber rings operating in opposite ...
Read MoreWhat is the performance of ethernet and token ring under light traffic load?
Ethernet is a widely used computer networking technology for connecting devices in Local Area Networks (LANs). It allows multiple computers to access a shared medium and transmit data using Carrier Sense Multiple Access with Collision Detection (CSMA/CD). Token Ring is a networking technology that connects stations in a ring topology, where data transmission is controlled by passing a special frame called a token around the ring. Ethernet vs Token Ring Topology Ethernet (Bus) Node Node ...
Read MoreWhat are issues in congestion control and how is it handled in TCP/IP?
Network congestion occurs when the demand for network resources exceeds the available capacity, leading to degraded performance. Congestion control is critical in maintaining network stability and ensuring fair resource allocation among users. When a sender transmits more packets than the network can handle, routers become overwhelmed and must queue or discard packets. This creates a cascade effect where retransmissions further increase network load, worsening the congestion problem. Impact on Network Performance Delay-Based Issues Network delay consists of propagation delay (time for signal to travel) and processing delay (time for routers to process packets). When network load ...
Read MoreDifference between Stop and Wait protocol and Sliding Window protocol
Stop and Wait protocol and Sliding Window protocol are two fundamental flow control mechanisms used in data communication networks. Both protocols ensure reliable data transmission but differ significantly in their approach and efficiency. The Stop and Wait protocol sends one frame at a time and waits for acknowledgment from the receiver before sending the next frame. In contrast, the Sliding Window protocol allows multiple frames to be sent simultaneously within a defined window size, making it more efficient for data transmission. What is Stop and Wait Protocol? The Stop and Wait protocol is the simplest flow control ...
Read MoreHow Web Works?
The World Wide Web (also known as the "web") is a global network of interconnected documents and other resources, linked by hyperlinks and URLs. It is a platform that allows people to access and share information, communicate with one another, and conduct business online. The web is built on top of the Internet, which is a global network of computers that are connected to each other and can communicate with one another. The Internet allows computers to send and receive data, such as emails, files, and web pages, to and from one another. The web was invented in ...
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