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
Top 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 ...
Read MoreWhy is CCNP certification the key to success in Networking Industry?
A Cisco Certified Network Professional (CCNP) certification is an industry-recognized credential that demonstrates your ability to implement, design, operate, and troubleshoot enterprise-level networking infrastructure. In today's competitive IT market, CCNP certification has become increasingly valuable for networking professionals seeking career advancement and higher-level responsibilities. The CCNP credential validates advanced networking skills across multiple domains including data center network architecture, service delivery, security, virtualization, WAN technologies, and IP routing. This certification is designed for professionals with at least one year of networking experience who want to specialize in enterprise networking solutions. CCNP Career Path Progression ...
Read MoreWhat is Remote Code Execution (RCE) ?
Remote Code Execution (RCE) is a critical security vulnerability that allows attackers to execute arbitrary code on a remote system without physical access. By exploiting software vulnerabilities and network connections, attackers can run malicious commands, install malware, steal data, or completely compromise targeted systems. RCE attacks represent one of the most severe security threats in cybersecurity, as they provide attackers with direct control over vulnerable systems. The OWASP foundation recognizes RCE as a critical vulnerability category due to its potential for widespread damage. How RCE Works Remote Code Execution exploits security flaws in software applications, operating systems, ...
Read MoreAdvantages and Disadvantages of Repeater
A repeater is an electronic device that receives a signal, amplifies its power, and retransmits it to extend the transmission range. Operating at the physical layer (Layer 1) of the OSI model, repeaters are essential networking devices that combat signal degradation over long distances. When signals travel through transmission media like cables or wireless channels, they naturally weaken due to attenuation and noise. Repeaters solve this problem by regenerating the original signal strength, effectively extending the network's reach without degrading data quality. How a Repeater Works ...
Read More