What does UDP serve? Wouldn't it have been better if user processes could transmit IP packets directly?

Why do HTTP, FTP, SMTP, and POP3 use TCP over UDP instead of the other protocol?

To what extent may the needs of end users be met via the usage of transport protocols? Should all services use TCP, UDP, or both?

What is the purpose of UDP? If user programs were allowed to send only raw IP packets, would it not have sufficed to leave it at that?

What, exactly, is routing, and how does it operate in practice? In this article, we'll look at and analyze two popular routing methods.

Break down the four abstraction layers that make up TCP/IP.

TCP is a connection-oriented protocol, while IP is a connectionless protocol. What is the best way for these two protocols to coexist in the same protocol stack?

Why do transport protocols such as HTTP, FTP, SMTP, and POP3 use TCP as opposed to UDP?

There is a potential that the OSI model and the TCP/IP model will be able to help us understand and communicate information about connections and information transfers (the internet).Do any of these models strike you as being even somewhat familiar?

Why does the Internet today send speech and video data over TCP rather than UDP?