What is the difference regarding reliability and communication type between TCP and UDP?
A.TCP is reliable and is a connection-oriented protocol; UDP is not reliable and is a connectionless protocol B.TCP is not reliable and is a connection-oriented protocol; UDP is reliable and is a connectionless protocol C.TCP is not reliable and is a connectionless protocol; UDP is reliable and is a connection-oriented protocol D.TCP is reliable and is a connectionless protocol; UDP is not reliable and is a connection-oriented protocol正确答案A
