The OSI model is the model that most networking personnel are familiar with, but to earn your CCNA, you need to know the OSI model, the TCP/IP model, and how the two map to each other. The four layers of the TCP/IP architecture can be compared to certain levels of the OSI model. It’s important to know what each level…
Tag: Tcp
What Is Udp
UDP, or User Datagram Protocol, is one of the several core protocols of the standard Internet protocol suite. By making use of UDP, it is possible for programs that are found on various computers connected by a network to send short messages back and forth. Known as datagrams, these quick and easy message make use of very little in the…
What Happens From Server To Web Browser
Each time you click on a link in a web page or type an address into your web browser you are making a ‘request’ for a certain document. That request is handled with the Hyper Text Transfer Protocol (HTTP) and sent over the Internet to the server which holds the document in question. If all goes well the server responds…