sockets

[Anon]

Why are sockets necessary? Provide an example that would NOT work if sockets were not built into transport protocols.

[brandonschnell]

Sounds like a homework problem to me.

but its a confused homework problem. the word "sockets" typically is used to refer to an API method to reference TCP/UDP. Ports on the other hand are specified in the transport layer and are required to support multiple applications communicating to/from one computer.

but this is from memory and i may be wrong.

[kparker]

from memory and may be wrong

Not at all, I have the same thought. It's certainly not the case that sockets are "built into" the transport protocol.