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This document provides an overview of several key Application Layer protocols and concepts in computer networking, starting with the Domain Name System (DNS). DNS is an internet service that translates domain names into IP addresses and uses a hierarchical name space to manage the binding between names and addresses. The World Wide Web (WWW), invented by Tim Berners-Lee in 1989, is a collection of resources identified by URLs and interlinked by hypertext links.
The document then delves into electronic mail (e-mail), outlining its architecture, basic functions like composition, transfer, and reporting, and its advantages such as cost-effectiveness and efficiency. The Simple Mail Transfer Protocol (SMTP) is introduced as the communication guideline for transmitting email over the internet, handling message sending to single or multiple recipients and communicating between servers. HyperText Transfer Protocol (HTTP) is the connectionless, media-independent, and stateless protocol used to access data on the WWW, transferring files via a single connection. The File Transfer Protocol (FTP) is a standard protocol for transmitting files between hosts, establishing two connections: one for control and one for data transfer. Finally, the Simple Network Management Protocol (SNMP) is presented as a framework for monitoring and managing devices on the internet using a manager-agent model and various message types.
Here are 5 key bullet points of the specific topics covered with a brief definition for each:
The document then delves into electronic mail (e-mail), outlining its architecture, basic functions like composition, transfer, and reporting, and its advantages such as cost-effectiveness and efficiency. The Simple Mail Transfer Protocol (SMTP) is introduced as the communication guideline for transmitting email over the internet, handling message sending to single or multiple recipients and communicating between servers. HyperText Transfer Protocol (HTTP) is the connectionless, media-independent, and stateless protocol used to access data on the WWW, transferring files via a single connection. The File Transfer Protocol (FTP) is a standard protocol for transmitting files between hosts, establishing two connections: one for control and one for data transfer. Finally, the Simple Network Management Protocol (SNMP) is presented as a framework for monitoring and managing devices on the internet using a manager-agent model and various message types.
Here are 5 key bullet points of the specific topics covered with a brief definition for each:
- Domain Name System (DNS): An Internet service that translates domain names into IP addresses, utilizing a distributed, hierarchical database.
- World Wide Web (WWW): A collection of documents and web resources identified by URLs, interlinked by hypertext links, and accessible via the Internet.
- Simple Mail Transfer Protocol (SMTP): A set of communication guidelines that allows software to transmit electronic mail over the internet.
- HyperText Transfer Protocol (HTTP): A connectionless, stateless, and media-independent protocol used to access data on the World Wide Web.
- File Transfer Protocol (FTP): A standard internet protocol used for transmitting files from one host to another, establishing separate control and data connections.
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