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?

Or is this not the case at all? Are UDP and IP both equally unstable? What do you think the cause of this is?

For what kind of problems may SSH be a solution? Do we have permission to include SSHs in our list of protocols?

Is there a materially different level of unreliability between IP and UDP, and if so, what constitutes that difference? Is there a reason for this, or is it simply something that happened by chance?

Answer the following questions:a. In what way could TCP be considered a better protocol for implementing the transport layer than UDP? In what way could UDP be considered better than TCP? b. What is the significance of certificate authorities in public-key encryption? c. In what sense does the global nature of the Internet limit legal solutions to Internet problems?

What does UDP intend to achieve? Wouldn't it have been sufficient to leave things at that if user applications were only permitted to transmit raw IP packets?

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?