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csc chp2 flashcards

topic = socket programming

QuestionAnswer
what is the goal of socket programming learn how to build client/server applications that communicate using sockets
what is a socket door between application process and end-end-transport protocol
what are two types of socket programming UDP and TCP
what is a UDP unreliable datagram
what is a TCP reliable, byte stream-oriented
describe the socket programming characteristics with UDP no connection between client & server (no handshaking before sending data / sending explicitly attached IP destination address and port # to each packet / receiver extracts sending IP address and port # from received packet)
how does UDP receive/send data transmitted data may be lost or received out-of-oder
what is the application viewpoint for UDP UDP provides unreliable transfer of groups of bytes (datagram) between client and server
example app on UDP client slide 104
when socket programming is being used with TCP what must happen client must contact server (server process must first be running / server must have created socket that welcomes client's contact)
how does a client contact a server using socket programming with TCP creating TCP socket, specifying IP address, port number of server process / when client creates socket = client TCP establishes connection to server TCP
what happens when contacted by client TCP creates new socket for server process to communicate with that particular client (allows server to talk with multiple client / source port numbers used to distinguish clients)
what is the application viewpoint on TCP TCP provides reliable, in-order byte-stream transfer between client and server
example on client/server socket interaction slide 107
END of chapter 2 notes
Created by: NtokozoN
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