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Computer Network Articles
Page 98 of 122
Common Gateway Interface
The Common Gateway Interface (CGI) is a standard protocol that enables web servers to execute external programs and return dynamic content to users. CGI acts as middleware between web servers and application programs, allowing websites to generate interactive content rather than just serving static HTML pages. When a user submits a form or requests dynamic content, the web server uses CGI to pass this request to an external program (called a CGI script), which processes the data and returns results back to the server for display to the user. CGI Process Flow ...
Read MoreAdvantages and Disadvantages of NAT
Network Address Translation (NAT) is a widely used technology that enables devices on a private network to communicate with devices on the internet. NAT translates private IP addresses used on a local network into public IP addresses that can be recognized and routed over the internet. This technology serves as a bridge between private networks and the public internet, allowing multiple devices to share a single public IP address. How NAT Works Private Network ...
Read MoreAdvantages and Disadvantages of Static IP
In computer networking, IP addresses serve as unique identifiers that enable devices to communicate within a network. When configuring network infrastructure, administrators must choose between static and dynamic IP addressing schemes. A static IP address is a fixed address manually assigned to a device that remains constant over time, unlike dynamic addresses that change automatically. Static IP addressing offers specific benefits for certain network scenarios, particularly for servers and enterprise environments. However, it also presents challenges in terms of management overhead and security considerations that organizations must carefully evaluate. Static vs Dynamic IP Address ...
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 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 More10 Best Computer Networking Books To Learn From
Computer networking forms the backbone of modern digital communication, connecting devices across the globe through various network topologies and protocols. Whether you're a student beginning your networking journey or a professional seeking to advance your skills, selecting the right learning resources is crucial for understanding this complex field. Best Computer Networking Books The following carefully curated list presents the top networking books that cover fundamental concepts, practical applications, and advanced topics to help you master computer networking from the ground up. 1. CompTIA Network+ Certification All-in-One Exam Guide Author: Mike Meyers Publisher: McGraw Hill Current Edition: ...
Read MoreAdvantages and Disadvantages of Satellite Communication
Satellite communication is a form of wireless communication that transmits and receives information between points on Earth through artificial satellites orbiting the planet. This technology has become essential for television broadcasting, weather forecasting, navigation, military communication, and global connectivity, especially in remote areas where terrestrial infrastructure is impractical. What is Satellite Communication? Satellite communication uses artificial satellites positioned in orbit around Earth to relay signals between ground stations. The satellite acts as a repeater, receiving signals from Earth, amplifying them, and retransmitting them back to different locations on the surface. This system enables communication across vast distances ...
Read MoreDerive the efficiency of Pure ALOHA protocol
The word ALOHA originally means "hello" in Hawaiian. ALOHA is a random access protocol that operates at the MAC (Medium Access Control) layer of the OSI model. It allows multiple stations to transmit data over a shared communication channel without requiring coordination or scheduling. When multiple devices need to communicate over a single transmission medium, data collisions can occur if two or more stations transmit simultaneously. ALOHA protocols provide a mechanism to handle such situations and improve transmission efficiency despite the inherent collision problems. How ALOHA Works In ALOHA protocol, stations transmit data frames whenever they have ...
Read MoreDifference between AS Override and Allowas In
The Border Gateway Protocol (BGP) features AS Override and Allowas In are used to control how BGP routing information is exchanged between Autonomous Systems (AS). These mechanisms help network administrators handle specific scenarios where standard BGP loop prevention rules need to be bypassed for legitimate network designs. AS Override AS Override is a BGP configuration option that allows a border router in one AS to replace the AS number of the directly connected AS when advertising routes to another AS. This is particularly useful in service provider networks where customers use private AS numbers or in hub-and-spoke topologies. ...
Read MoreDifference between the bridge and gateway
In a computer network, physical devices are used to communicate from one to another. These devices are also called Network Hardware. The primary functions in computer networks are connectivity and controlling of network traffic. The network can be expanded or connected using network devices. A bridge is a network device that operates at the Data Link Layer to connect two LANs using the same protocol. A gateway is a network device that connects two disparate networks using different protocols, acting as a protocol converter and translator. Bridge vs Gateway Connection ...
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