Handshaking protocol

1. What is meant by a handshaking protocol?

2. What does a stateless protocol mean? Is IMAP stateless? What about SMTP?

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3. How can websites keep track of users? Do they always need to use cookies?

1. List the four broad classes of services that a transport protocol can provide. For each of the service classes, indicate if either UDP or TCP (or both) provides such a service.

2. Recall that TCP can be enhanced with SSL to provide process-to-process security services, including encryption. Does SSL operate at the transport layer or the application layer? If the application developer wants TCP to be enhanced with SSL, what does the developer have to do?

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