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Articles on Trending Technologies
Technical articles with clear explanations and examples
Mastering the Fundamentals: Understanding Packet Switching and Delays in Computer Networks
Packet switching is a fundamental network communication method that breaks data into smaller units called packets for efficient transmission across networks. Instead of sending large files as single units, packet switching divides data into manageable pieces, each containing part of the original data plus routing information like source and destination addresses. When you send a message or file, your device divides it into packets based on network protocols. These packets travel independently through various network nodes and routers, potentially taking different paths to reach their destination. Upon arrival, packets are reassembled in the correct sequence to recreate the original ...
Read MoreWhat is Session Layer in the Computer Network?
The Session Layer is the fifth layer in the OSI model and one of the upper layers that provide user-oriented services. It sits between the Presentation Layer and Transport Layer, managing communication sessions between applications on different devices. The session layer provides a defined set of services to the presentation layer and controls the structure and interaction between application programs. It synchronizes communication, manages the direction of information flow, and handles session establishment, maintenance, and termination. The service definition and protocol specifications are defined in ISO 8326 and ISO 8327. Session Layer in OSI ...
Read MoreDifference between MediaFire and Mega
MediaFire and MEGA are both cloud storage services that allow users to store, sync, and share files online. However, they differ significantly in their approach to security, storage offerings, and target audiences. MediaFire MediaFire is an online backup service that provides file hosting, file synchronization, and cloud storage. The company is based in Texas, United States, and was founded by Derek Labian and Tom Langridge in June 2006. User base − MediaFire has around 43 million registered users worldwide. Platform compatibility − Compatible with Windows, Mac OS, iOS, Android, and web browsers. ...
Read MoreTop Computer Network Interview Questions
This article includes some of the top network interview questions with answers that can benefit candidates attending a job interview on Networking. We have tried our best to include all the relevant and most-asked questions and explain them in lucid language so everyone can understand them. What is a Network? A network is a collection of multiple computers or devices connected to share resources, allowing electronic communication and file exchange. These computers can be linked through cables, the internet, satellites, telephone lines, radio waves, or infrared light beams. What is a Node? A node is a ...
Read MoreCATA protocol in Computer Network
Computer networks require efficient protocols to manage address assignments and prevent conflicts as they grow in complexity. The Common Address Table Algorithm (CATA) protocol is designed to centralize IP address management and provide redundancy mechanisms for network stability. CATA builds upon existing address resolution protocols to create a distributed yet coordinated approach to IP address assignment, reducing conflicts and improving network reliability through its redundancy features. How CATA Protocol Works The CATA protocol operates through a distributed address table system where multiple nodes maintain synchronized copies of address assignments. When a device requests an IP address, the ...
Read MoreAdvantages and Disadvantages of TDMA
Time Division Multiple Access (TDMA) is a multiple access protocol that allows multiple stations to share a single communication channel by dividing time into discrete slots. Each station is allocated a specific time slot in a round-robin manner to transmit data. While this approach provides organized access to the shared medium, it comes with both significant benefits and limitations. TDMA Time Slot Allocation Station A Slot 1 Station B Slot 2 Station C Slot ...
Read MoreExplain the functions of Session Layer.
The session layer is the fifth layer in the OSI model that manages communication sessions between applications on different devices. It acts as a general-purpose toolkit providing various services for establishing, maintaining, and terminating connections between communicating users. The session layer ensures reliable data exchange by managing sessions — logical connections that allow applications to communicate effectively. It handles dialog control, synchronization, and error recovery to maintain consistent communication states. Session Layer Functions Session Setup Dialog Control Synchronization ...
Read MoreWhat is the difference between Encryption and Cryptography?
Let us begin by learning about encryption and cryptography, two fundamental concepts in information security that are often confused but serve distinct purposes. Encryption Encryption is the process of converting plain text (readable data) into ciphertext (unreadable data) using mathematical algorithms and keys. This transformation ensures that only authorized persons with the correct decryption key can access the original information. Encryption operates by applying sophisticated algorithms that scramble the original data, making it unreadable to unauthorized users. A decryption key is required to revert the ciphertext back to its readable format. Encryption is particularly effective for protecting ...
Read MoreStructure of the Telephone System
The telephone system is organized as a highly redundant, multilevel hierarchy designed to provide reliable voice communication across vast distances. This hierarchical structure ensures efficient call routing and redundancy for uninterrupted service. Components of the Telephone System Subscriber telephone − The end user device that initiates or receives calls End office − Local central office directly connected to end users within a 1-10 km radius Local loop − A two-way connection between the subscriber's telephone and the end office Toll office − Switching centers that handle long-distance calls; called tandem ...
Read MoreComparison of 802.16 with 802.11
IEEE 802.16 is a standard that defines Wireless Interoperability for Microwave Access (WiMAX), a wireless technology that delivers network services to the last mile of broadband access. The IEEE 802.11 standard lays down the specifications of wireless local area networks (WLAN) or Wi-Fi, that connects wireless devices within a limited area. IEEE 802.16 (WiMAX) vs IEEE 802.11 (Wi-Fi) IEEE 802.16 (WiMAX) Coverage: 7-50 km Speed: Up to 100 Mbps Frequency: 2-11 GHz Use: Outdoor, wide area ...
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