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Articles on Trending Technologies
Technical articles with clear explanations and examples
What is Classic Ethernet MAC Sublayer Protocol?
Classic Ethernet is the original form of Ethernet used primarily in LANs, providing data rates between 3 to 10 Mbps. It operates both in the physical layer and in the MAC (Media Access Control) sublayer of the OSI model. In the physical layer, the features of cables and networks are considered, while in the MAC sublayer, the frame formats for Ethernet data transmission are defined. Classic Ethernet was first standardized in the 1980s as the IEEE 802.3 standard, establishing the foundation for modern Ethernet technologies. Frame Format of Classic Ethernet Classic Ethernet frames can be either Ethernet ...
Read MoreCharacter - Oriented Framing and Bit - Oriented Framing
Framing is a Data Link layer function that encapsulates packets from the Network Layer into frames. Data frames can be of fixed or variable length. In variable-length framing, frame sizes may differ, so a pattern of bits serves as a delimiter to mark frame boundaries. The two types of variable-sized framing are: Character-oriented framing Bit-oriented framing Character-Oriented Framing In character-oriented framing, data is transmitted as a sequence of bytes using an 8-bit coding system like ASCII. This approach treats data as a stream of characters rather than individual bits. ...
Read MoreDistributed Hash Tables (DHTs)
A Distributed Hash Table (DHT) is a decentralized distributed system that provides a lookup service similar to a traditional hash table. Unlike centralized hash tables where data is stored in a single location, DHTs distribute data across multiple nodes in a network, with each node responsible for storing and managing a portion of the key-value pairs. In a DHT, when a client wants to store or retrieve data, it uses a key to determine which node should handle the request. The system uses consistent hashing or similar algorithms to map keys to specific nodes, ensuring efficient data distribution and ...
Read MoreAdvantages and disadvantages of Remote Communication Technology
Remote communication technology has revolutionized the way we communicate and work. With the advancements in technology, it has become easier to connect with people from all over the world, regardless of their location. However, like all technologies, remote communication also has its advantages and disadvantages. Remote Communication Technology Advantages • Increased Productivity • Cost Savings • Global Talent Access Disadvantages • Isolation Issues • Collaboration Challenges • ...
Read MoreKerckhoff's Principle
Kerckhoff's Principle, also known as Kerckhoff's Law, is a fundamental principle in cryptography stating that a cryptographic system should remain secure even if everything about the system, except the key, is public knowledge. This principle explicitly rejects "security through obscurity" as a viable security strategy. Formulated by Auguste Kerckhoff in the 19th century, this principle establishes that cryptographic security must depend solely on the secrecy of the key, not on the secrecy of the algorithm or implementation details. Modern cryptographic standards like AES, RSA, and TLS all follow this principle. Kerckhoff's Principle: Open Algorithm ...
Read MoreAdvantages and Disadvantages of ring topology
Ring topology is a network topology in which all devices are connected in a circular fashion, with each device connected to exactly two neighbors. Data travels in a single direction around the ring, either clockwise or counter-clockwise. This topology is commonly used in specialized applications like FDDI networks and legacy Token Ring systems. Ring Topology A B C ...
Read MoreWhat is multicasting in Computer Network?
Multicasting in computer networks is a group communication method where one or more senders transmit data to multiple receivers simultaneously. It supports one-to-many and many-to-many data transmission across LANs or WANs, significantly reducing communication and processing overhead by sending the same data packet only once instead of creating individual copies for each recipient. Multicast Communication Sender Multicast Group Receiver 1 ...
Read MoreWhat is Broadcasting in Computer Network?
Broadcasting in computer network is a group communication method where a sender transmits data to multiple receivers simultaneously. This is an all-to-all communication model where each sending device transmits data to all other devices in the network domain. Broadcasting operates at different levels depending on the implementation: High-level operation − Broadcasting in applications like Message Passing Interface (MPI) Low-level networking operation − Broadcasting at the data link layer, such as Ethernet broadcasting Broadcasting in Computer Network ...
Read MoreAdvantages and Disadvantages of Teleconferencing
Teleconferencing, also known as video conferencing or virtual meetings, is a technology that enables real-time communication and collaboration between participants in different geographical locations using audio, video, and data sharing capabilities. This technology has become increasingly essential for businesses, educational institutions, and organizations seeking efficient remote communication solutions. Teleconferencing Network Architecture Participant A (New York) Conference Server (Cloud) Participant B (London) Audio/Video ...
Read MoreHow to Configure OpenStack Network to Enable Access to OpenStack Instances?
OpenStack is an open-source cloud computing platform that enables the creation and management of public, private, and hybrid cloud environments. The platform provides a wide range of services including computing, storage, and networking. OpenStack Networking, also known as Neutron, is a service that offers software-defined networking capabilities for OpenStack environments. Configuring network access to OpenStack instances is crucial for enabling communication between virtual machines, providing internet connectivity, and ensuring proper isolation between tenant environments. This guide covers the essential steps to set up different types of networks in OpenStack. Understanding OpenStack Networking Concepts OpenStack networking consists of ...
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