Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
What is a Botnet?
A botnet is a collection of internet-connected devices that have been infected with malware and are controlled remotely by cybercriminals. These compromised devices, called "bots" or "zombies, " operate without the knowledge of their owners and can be used to carry out various malicious activities. Botnets typically infect devices that have vulnerabilities such as outdated firewalls, unpatched operating systems, or insufficient antivirus protection. Once infected, these devices become part of a larger network that can be commanded to perform coordinated attacks. Botnet Architecture ...
Read MoreWhat are the differences between HDMI and VGA?
Let us explore the key differences between Video Graphics Array (VGA) and High Definition Multimedia Interface (HDMI), two important display connection standards used in computers and multimedia devices. Video Graphics Array (VGA) VGA stands for Video Graphics Array and was first developed by IBM in 1987. It remains widely used for connecting video cards, computer monitors, TVs, and laptops, particularly in older systems and budget applications. VGA uses analog video signals with five components (RGBHV): Red − Analog red color signal Green − Analog green color signal Blue − Analog blue color signal Horizontal sync ...
Read MoreWhat is Internet Relay Chat (IRC)?
Internet Relay Chat (IRC) is a protocol used for real-time interactive text messaging and simultaneous conferencing. It is primarily designed for group communication in discussion forums called channels, but also supports one-to-one private messaging and file transfers. IRC enables people from around the world to communicate in real time through distributed networks of IRC servers. Users connect to these servers using IRC client software to join channels and participate in conversations. IRC Network Structure IRC Server User 1 User ...
Read MoreWhat are the types of Transmission Technology?
Transmission technologies in computer networks are divided into two fundamental types based on how data is delivered between hosts: Broadcast Networks − One-to-many communication where data is sent from one source to multiple destinations simultaneously Point-to-Point Networks − One-to-one communication where data is sent directly between two specific hosts Broadcast Networks In broadcast transmission, data is sent from one source host to all other hosts present in the same or different networks. This is a one-to-all transmission method where a single message reaches multiple destinations simultaneously. ...
Read MoreWhat are the types of Virtual LAN (VLAN)?
A Virtual LAN (VLAN) is a logical subnetwork that groups devices together regardless of their physical location on separate local area networks. Unlike traditional LANs that are limited by physical connections, VLANs provide flexibility through software-defined network segmentation. VLANs enhance network security and management by controlling which devices can communicate with each other. They operate based on logical connections rather than physical proximity, making network administration more efficient and scalable. How VLAN Works When a switch receives an Ethernet frame, it either processes an existing VLAN tag or inserts one into the Ethernet header. Frames from other ...
Read MoreWhat are the differences between thunderbolt 2 and thunderbolt 3?
Thunderbolt is a high-speed interface technology developed by Intel in collaboration with Apple that combines data, video, audio, and power delivery in a single connection. Understanding the differences between Thunderbolt 2 and Thunderbolt 3 is crucial for selecting the right connectivity solution for modern computing needs. Thunderbolt 2 Thunderbolt 2, released in 2013, uses a Mini DisplayPort (MDP) connector and delivers a maximum throughput of 20 Gbps. This represents a significant improvement over the original Thunderbolt's 10 Gbps and far exceeds USB 3.0's 5 Gbps speed. Thunderbolt 2 provides two bidirectional 10 Gbps channels and supports daisy-chaining up ...
Read MoreWhat are the differences between EIGRP and BGP?
Let us understand the concepts of Enhanced Interior Gateway Routing Protocol (EIGRP) and Border Gateway Protocol (BGP) before learning the differences between them. Enhanced Interior Gateway Routing Protocol (EIGRP) EIGRP is the enhanced version of IGRP protocol, incorporating all the features of IGRP while adding significant improvements. It overcomes IGRP's drawbacks including slow convergence, hop count limitations, and lack of Variable Length Subnet Masking (VLSM) support. In EIGRP, communication with neighboring routers occurs through Hello packets, while information exchange happens via Update packets. The protocol maintains a topology table containing path information and calculates the shortest path ...
Read MoreWhat is NBP?
The Name Binding Protocol (NBP) is a network protocol that allows entities to bind human-readable names to their network addresses and register these mappings so other entities can locate them. NBP was primarily used in AppleTalk networks to provide a directory service for network resources. NBP displays user-friendly names to applications while using internal addresses to locate entities on the network. When an entity registers its name and address, NBP validates the uniqueness of that name within the network zone. NBP Name Resolution Process Client Requests "Printer:LaserWriter@Marketing" ...
Read More20 Useful Apache '.htaccess' Tricks to Secure and Customize Websites
Apache is one of the most popular web servers in the world, used by millions of websites to serve content to users. One of its most powerful features is the ability to use .htaccess files to customize and secure websites. An .htaccess file is a simple text file that can be placed in a website's root directory to control various aspects of the server's behavior. Password Protect a Directory To protect a directory on your website with a password, use the following .htaccess code: AuthType Basic AuthName "Restricted Area" AuthUserFile /path/to/passwords/file Require valid-user Replace ...
Read MoreDifferentiate between 1-Persistent and p-Persistent CSMA
Carrier Sense Multiple Access (CSMA) protocols are medium access control methods that help stations avoid collisions by listening to the channel before transmitting. The three main types of CSMA protocols are 1-persistent CSMA, non-persistent CSMA, and p-persistent CSMA. This article focuses on differentiating between 1-persistent and p-persistent CSMA protocols, their mechanisms, advantages, and key differences. 1-Persistent CSMA In 1-persistent CSMA, a station continuously monitors the channel to determine whether it is busy or idle before transmitting data. When the channel is busy, the station waits until it becomes idle. Once an idle channel is detected, the ...
Read More