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
Non-persistent CSMA protocol
Non-persistent CSMA is a non-aggressive version of Carrier Sense Multiple Access (CSMA) protocol that operates in the Medium Access Control (MAC) layer. Using CSMA protocols, multiple users or nodes send and receive data through a shared medium that may be a single cable or optical fiber connecting multiple nodes, or a portion of the wireless spectrum. In non-persistent CSMA, when a transmitting station has a frame to send and it senses a busy channel, it waits for a random period of time without sensing the channel in the interim, and repeats the algorithm again. ...
Read MoreReassessing the Concepts of Security Risk Management
Security Risk Management is a systematic approach to identifying, analyzing, and mitigating potential threats to an organization's information systems and data assets. It encompasses the entire lifecycle of security measures from planning and implementation to monitoring and response. Security risk management integrates multiple disciplines including application security, access control, authentication, and cryptography to create a comprehensive defense strategy. Organizations must continuously assess vulnerabilities, implement appropriate controls, and adapt to emerging threats to maintain effective protection. Core Components of Security Risk Management Application Security Application security focuses on protecting software applications throughout their development lifecycle. This includes ...
Read MoreWhat is the concept of flow and error control and their differences?
Flow control and error control are two fundamental mechanisms in computer networks that ensure reliable data transmission between sender and receiver. While both are essential for maintaining data integrity during communication, they serve distinct purposes in network protocols. Error Control Error control is concerned with ensuring that all frames are delivered to the destination correctly and possibly in order. It focuses on detecting and correcting transmission errors that may occur due to noise, interference, or other factors in the communication channel. To ensure reliable delivery, error control requires three key components: Acknowledgement Reliable delivery is ...
Read MoreDynamic Host Configuration Protocol (DHCP)
Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway. In DHCP, port number 67 is used for the server and 68 is used for the client. DHCP allows a network administrator to supervise and distribute IP addresses from a central point and automatically sends a new Internet Protocol (IP) address when a computer is plugged into a different place in the network. DHCP is an application layer protocol that provides: IP ...
Read MoreSteps to become a successful paid Ethical Hacker
In the history of the internet, network security has always been a problem. The field of ethical hacking has gained significant traction over the last few decades. While malevolent hackers want to gain access to systems for their gain, ethical hackers seek to keep those systems secure from harm. Ethical hacking involves breaking into a system on purpose to check its defenses and safeguard it from cyberattacks. Most often, businesses hire ethical hackers to perform penetration testing. These hackers are highly skilled in computer security and play a crucial role in protecting the integrity of an organization's IT infrastructure. ...
Read MoreBeware of the Bug: Navigating the World of Malicious
In today's digital age, the threat of malware (malicious software) is more prevalent than ever. Malware comes in various forms such as viruses, worms, and ransomware — each designed to compromise computer systems or steal sensitive data. As cybercriminals continue to develop sophisticated techniques for deploying these threats, it's crucial that both novice and professional users stay informed about the different types of malware and their potential impacts on our digital lives. Common Types of Malware Virus Infects files Trojan ...
Read MoreDifference between HTTP and IPFS
HTTP (HyperText Transfer Protocol) is the foundation of the World Wide Web, following a centralized client-server approach where data is requested from specific server locations. IPFS (InterPlanetary File System) uses a decentralized network where data is requested using content-based identification rather than location-based addressing. What is HTTP? HTTP is a protocol that operates in the application layer of the network stack, enabling communication between web browsers and servers. It uses a request-response model where clients request resources from centralized servers using specific URLs. HTTP - Centralized Client-Server Model ...
Read MoreDifference between LAN and WAN
A WAN (Wide Area Network) is a network of local area networks (LANs) that connects to other LANs via telephone lines, radio waves, and other communication technologies. WAN connections include both wired services like carrier Ethernet and commercial broadband Internet links, and wireless technologies such as cellular data networks (4G LTE), public Wi-Fi, and satellite networks. A LAN (Local Area Network) is privately owned and spans a smaller geographical area, typically restricted to a few kilometers. LANs are commonly used in offices, residences, hospitals, and schools, with straightforward setup and management requirements. What is a LAN? A ...
Read MoreDifference between Ethical Hacker and Forensic Investigator
In today's digital landscape, organizations face increasing cybersecurity threats that require specialized expertise to combat. Two key roles have emerged to protect sensitive data and investigate security incidents: ethical hackers and forensic investigators. While both professionals work toward securing digital assets, they serve distinctly different purposes in the cybersecurity ecosystem. Understanding the differences between these roles is crucial for organizations looking to build comprehensive security strategies and for professionals considering careers in cybersecurity. Who is an Ethical Hacker? An ethical hacker, also known as a "white hat" hacker or penetration tester, is a cybersecurity professional who uses ...
Read MorePost Office Protocol, Version 3 (POP3)
Post Office Protocol version 3 (POP3) is a standard email protocol used by email clients to retrieve messages from a mail server. It operates as a simple, text-based protocol that downloads emails from the server to the client device for local storage and management. POP3 follows a straightforward client-server model where the email client connects to the server, authenticates the user, downloads available messages, and then typically deletes them from the server. This makes it ideal for single-device email access scenarios. How POP3 Works POP3 operates through a series of commands exchanged between the email client and ...
Read More