Some UDP socket programming questions I am confused about?

(1) Since I see no reference to mySocket other than the one in the question I would say your answer seems right.

(1) Since I see no reference to mySocket other than the one in the question I would say your answer seems right. (2) The address/port are obviously necessary. However this could be a trick question in that client could call connect() on the socket.

With UDP, connect() the kernel keeps track of the address passed in the call as the peer of the socket. The socket could then just call write() or send() rather than having to use sendto(). Still, calling connect would still require the address/port in the first place so who knows what they are getting at.(3) There is no "connection" in UDP.

Many clients could send to the server. The server can get the address of the individual clients from its recvfrom and then turn around and use that address in its sendto.

Note: you said 'no' on point 3 and then answered 'yes' :D Edit: oh, you're checking his answers :) – Chris Dennett May 7 at 23:40 @Chris Dennett - I removed it. It was confusing. – Duck May 8 at 0:11.

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